Seiko Astron SBXY017: The greatest name in quartz watch history

My new blog entry is about a watch which most of my readers probably never will buy: The Seiko Astron SBXY017 from the new Astron series. At first glance it doesn’t fit in my collection which contains mostly vintage or vintage inspired watches. The SBXY017 seems to be quite the opposite. A solar powered movement with radio control. A modern everyday watch and a very comfortable too. Only 10mm thickness and made totally of scratch resistant titanium it’s easily the best wearing watch on my wrist I ever had. But no vintage connection. Really?

History is always important for me. So let’s make a short time travel. In 1964 Seiko was official timekeeper of the Olympic Games in Tokio. They use big portable quartz watches for exact time measure. A novum, in Rome 1960 traditional mechanic stopwatches were used. Seiko had alle the knowledge about this new technique and decided to develop a quartz wristwatch.

Some Swiss companies were working on the same “next big thing”, but Seiko had a big advantage. It was (and is until today) a fully integrated company, developing and producing all parts inhouse. The Swiss watch industry in comparison evolved over 200 years in a different way. Most companies specialized in watch parts like dials, cases, hairsprings etc. Almost all well known Swiss brands used at least a dozen suppliers to build a watch. To develop a whole new technology with many new parts means to share knowledge, talk about responsibilities and costs. No company alone was able to bring a new technology to industrial level, which means to produce watches in great numbers for a reasonable price. So they focused on other things like the first automatic chronograph movements. It’s a joke of history that Seiko too was the first company to deliver this watches in numbers. The 6139 movements were sold in the beginning of 1969 while Heuer/Büren still had problems with their prototypes and Zenith delivers only very few pieces. But that’s a different story…

Why didn’t make Seiko a big fuss about their automatic chronograph movements like the Swiss companies did? It’s very likely their first prototype beat Heuer and Zenith for some weeks. The answer is easy. The big thing in 1969 wasn’t the 6139 movement – it was the Seiko Astron, released in December 1969 as the first ever quartz wristwatch. For 450,000 Yen they delivered a watch with an accuracy of +/- 5 sec/month (better than most quartz movements today), a hundred times more accurate as any other watch back then. The design was a result of an in-house competition. The watch should look “luxury and slim”.

First Quartz Wristwatch Seiko Astron(picture copyright Seiko)
First wristwatch quartz movement (pictures copyright Seiko)

We all know what followed: Prices dropped in a very fast way. The Swiss companies had no answer and the so called “quartz crisis” began. In fact it was more of a structural crisis. Seiko opened their patents but the Swiss companies can’t bring all the parts form different companies together. The business models of most companies to build watch with the parts of several dozen suppliers collapsed. Some years later the Swiss watch industry was rebuild as an industry of big companies like the Swatchgroup and many famous names vanished for ever or for a long time.

So the SBXY017 bears the name of the biggest game changer in the 20th century watch industry. No history? The opposite is true. Think about that before you thrill up your nose about “a modern watch without a soul and no historical meaning”.

The last 20 years the Astron line always bears the watches with the newest technologies, adding solarpower, radio control and GPS. I admired the technique but they didn’t reach my heart, mostly because of their extremely modern design and the size. Of course the 2,000 Euro (and up) price point was another reason.

This year Seiko made a big move. Typical for this company they made no big announcements but new watches with the historical Astron name appeared. They changed design teams (they took people from Grand Seiko) and made a downgrade in technical abilities. This new Astrons don’t have a GPS sensor, time is only radio controlled. The biggest change is the new design, much smaller and more comfortable and looking like a historical chronograph with the big and colorful second hand. The SBXY001-023 are all made of hard coated titanium (Diashield) and with super clear coating technology, a combination called “Comfotex ©”.

The ”chronograph buttons” are for the radio control funcitions like setting the time zone or controlling the last sync. I don’t know why Seiko released this models only a Japan. They are from 600 to 1,000 Euros without taxes and believe me I have never seen a watch with such quality in details at this price point. They have a built in sleep function to save power. Even without using this function the watch will work for 9 months without light. The power safe function is activated if the watch is stored in a dark place or is not moved for more than 2 days. Once exposed in the light again the hands and the date wheel are moving like magic to the correct time and date – a feast for the eye!

I hope you can see one life and admire the very well executed details – although spotting this watch outside Japan might be a bit difficult. I highly recommend to take a closer look at this watch with such a great name in watch history.

Willard III (Seiko SPB151): A Willard! A Willard! No kingdom for a Willard!

A blog entry about the Willard? Isn’t it all said about this watch? Maybe, but this days the X-Willard arrived in Germany (and in my collection), with reference number SPB151 for the black version. And owning this watch for some days now I decided it’s worth a new blog entry.

Let’s first have a look at the vintage Willard. The reference 6105-8110 appeared in 1968 and was produced until 1977. It was the first diverwatch from Seiko with the Turtle shaped case and with a diameter of 44mm it was really a big watch in its time. It bears some of the features we all identify today as typical Seiko: the asymmetric case and the crown at 4 o’clock protected by bends in the case. The 6105 was an automatic movement with 17 juwels and 21.600 bpH. No handwinding, but with a date quick-set. The bezel rotates in both directions and the watch had a water resistance of 150m. The Hardlex glass bears the typical bevel giving the watch a very unique look.

6105-8110 in perfect condition

The 6105-8110 was neither a cheap nor an expensive watch at it’s time but a very robust one. No surprise the Japanese adventurer Naomi Uemura ( chooses this watch for his expeditions. He was the first man reaching the North Pole alone (in 1978). In 1984 he vanished at Mt. McKinley. In Japan the 6105-8110 bears the nickname “Uemura”.

6105-8110 (picture by ajiba54)

But in most other parts of the world this watch is called “Willard” after the main character in the movie “Apocalypse Now”. The 6105-8110 was sold at PX-stores and many US soldiers were wearing this watch during the Vietnamese war. So Francis Ford Coppola (or his crew) decided this watch would be a good choice for his Captain Willard chasing Colonel Kurtz in the Vietnamese jungle. The movie creates the nickname Willard for this watch and most collectors use this name when they talk about the 6105-8110 today.

In 2017 Seiko started with the reissues of their famous diving watches. The first was the 62mas reissue, the SLA017 (  At the same time they released a so-called “modern reinterpretation” of the 62mas, the SPB051/053 (nicknamed 51mas/53mas), a more affordable version. While the SLA017 had a price tag of 3.800 Euro, the SPB051 was available for 1.050 Euro. This scheme – a limited reissue with a high price tag and an unlimited and more affordable modern reinterpretation – was continued in 2018 with the SLA025 (reissue) and SPB077/079 (modern reinterpretation, nicknamed MM200 oder Baby MM), modern versions of the 6159-7001.

When Seiko released in 2019 the next limited reissue SLA033 (reissue of the 6105-8110) there was no modern reinterpretation…The SLA033 was an almost perfect reissue of the Willard. The main difference in the design was the lack of the typical bevel in the glass (okay, a small bevel was left). I have no idea why they decided to install a normal sapphire glass. The SLA033 did not sell so easy as the SLA017 and you can still get one today with a great discount.

SLA033 (picture by aboutwatches_UF)

This year, without Baselworld and any other fairs, the modern reinterpretation of the Willard followed, a big surprise for most fans. They released the SPB151 (black) with a bracelet and the SPB153 (green) with an excellent rubber. I personally would have welcomed the SPB151 with the rubber…

SPB151 on original bracelet

Let’s have a closer look at this watch: The size shrinked to a more comfortable 42,5mm diameter and 46,5mm length lug2lug. Lugwidth is 20mm. The best of all: the bevel is back! The gorgeous and special look form every direction is therefore also back. But no ups without downs: The framed date is missing, it’s just a square hole in the dial. But beside of the date the vintage look with alloy bezel is perfect! The watch comes with a bracelet of good quality, but I think most fans, including me, will wear this watch on a rubber

The movement is Seikos recent mid-class 6R35 with 70 hours power reserve, 21.600 bpH and MEMS technology. My piece runs with +1 sec/24h.
The overall quality of this watch is perfect at this price range, the screw-down crown the best I had in a watch. And this is what my friends have told me, so maybe Seiko improved the technology for the screw-down crowns. The case is very nicely finished with polished and brushed parts and drilled lugs. It’s even better than the excellent case of the SPB051/053 and a step forward from the SPB077/079. Excellent job!

SPB151 on Chocolate Bar Rubber

I personally wasn’t the biggest fan of the Willard and not willing to pay 2,5-3,5k for a perfect vintage piece or the SLA033. I think many people had similar thoughts and some bought the cheap Chinese copies instead. Well you can have now a real Willard from Seiko at a reasonable price point in real high quality! For the Willard III you don’t have to give away a kingdom. The SPB151 with the bracelet is priced at 1.350 Euro – not a cheap watch and not a very expensive watch just like the 6105-8110 in it’s times.

The bevel is back!
Iconic shovel second hand
Excellent case finish
Wristshot on my 17,,5cm wrist

Legends from the 60s reissued: Seiko SLA017, Doxa Silver Lung and ZRC Grand Fonds

This entry is my first attempt to write about of more than one watch in one entry. So today you will receive information about three watches for the price of one 😉

I always was a fan of the 60s and 70s. This were two decades of great designs in watchmaking and almost ever single watch design today has its roots in this age. And not to mention – these are the decades of my youth.

In watch design it was especially the golden age of diving watches. The first icons appeared some years earlier: the Blancpain Fifty Fathoms (first watch with diving bezel) and the Rolex Submariner. But in the 60s designs explode and so did companies. I will mention Zodiac, Doxa, Yema…all releasing icons highly sought by collectors today. But this original watches are now often shattered pieces and the few ones in good condition are expensive and very hard to find. The companies today began to satisfy the longing for this old watches with modern reissues, more or less exact the same design. Often released in limited numbers some of them became collector pieces too. I will show you three of them:

Seiko SLA017, reissue of the 62mas

Doxa Silver Lung Annivesary, reissue of the original Doxa Sub Searambler Aqua Lung

ZRC Grand Fonds 300, reissue of…yes, the ZRC Grand Fonds 300

When I acquired my ZRC Grand Fonds I thought it maybe an interesting idea to talk about three watches in one article. It will not be longer than my usual entries, because two of the watches I reviewed in earlier entries.

The Seiko SLA017 in
and the Doxa Anniversay in

Truth to tell it’s not the same Doxa but the only difference is the dial with the silver color and black Aqualung Logo. Like the Doxa Sharkhunter in my article the Aqua Lung was released in 1967, in a very small batch, some say less than 10 pieces. To find a Doxa Silver Lung from this period is therefore quite impossible, don’t even think about it. In 2017, 50 years later, Doxa released the resissue. The so-called Silver Lung with the silver Searambler dial was built in 300 pieces and released with a retail price of about 2,500 USD – you can’t get one for this price right now. It’s a rare watch on second market and most of them are in the hands of collectors. Chrono24 lists no piece. I got mine from a fellow collector of dive watches in March 2020, two months after my Doxa Sharkhunter Anniversary, so I have two of them reissues in my collection. When it comes to retail price it’s the “cheapest” of the three watches. And it’s the only one which is really a 1:1 reissue, the other two have grown in size. The history and more details you can read in my blog article.

I think I have almost wrote everything about the Seiko SLA017 in my other entry. It was a sensation in 2017 (same year as Doxa!), a Seiko at this price point was unknown, the expensive Seikos were named Grand Seiko. Many fans were surprised while other fans of more expensive brands admired the watch. It’s the most versatile of the three watches, the least eyecatcher for the common people not familiar with watches. And it’s the one with the highest retail price with 3,800 Euro. It’s sold out like the Doxa and slowly it becomes a collector’s piece, now it’s the last time to get one for a reasonable price in my opinion. It’s my favorite one of this three watches and if I had to choose it would be the SLA017 (glad I have all three…).

Since I have already written about the Seiko and the Doxa this article will give more room to the ZRC. Probably some of you didn’t heard about ZRC until now. The company was founded in 1904 in Geneva by Edmond Ziccolo and Joseph Rochet, so ZRC is Zuccolo, Rochet and Cie. It was specialized in expendable metal bracelets – we will talk about the bracelet of this watch later.

From 1960 to 1964 ZRC developed their first watch, the ZRC Grand Fonds 300 – the ancestor of my watch. The watch was used by the French Navy from 1964 to 1982 and original pieces from this time are highly sought collector’s pieces. It almost looks like the recent watch expect the size which grow from a diameter of 36mm to a more modern size of 40,5mm. In almost every other aspect today’s Grand Fonds looks like the legendary watch from 1964.

The new Grand Fonds was released in 2015. In 2017 ZRC teamed up with Alban Michon for a Northpole expedition. They made a special edition of this reissue and distributed it via Kickstarter, so the watch was presented to a bigger community.

The bezel has a special cleaning system named ECS ™, allowing fresh water flowing under (!) the bezel to wash out salt from diving. You have to take a very close look at the watch to spot this system. What you see even from a distance is the most unique design feature: The crown is placed at 6 o’clock. The crown can only be unscrewed if you tilt the strap adapter (or with bracelet, if you tilt the bracelet). In unscrewed position you cannot put the watch on the wrist again, you first have to screw it again. So it’s a safety feature. If you have the watch on the wrist, the crown is screwed down. A cool feature….but a complicated thing to wind up the watch or to set the time. You can only use two fingers to operate the crown and they should better be not too big. The quality of the case is amazing and explains the price point.

Inside you find the common ETA 2824-2 (or a Sellita SW-200) Elabore, so that’s nothing special. The Doxa and the Seiko have significant better movements. You may think that’s no problem, because the good point is, every watchmaker can easily adjust, clean and service the movement. Well, wrong. The caseback has triangle shaped slots to open and requires special tools only available at ZRC. And talking about triangles: The strap/bracelet doesn’t have springbars but is attached with screwed pins on the lugs. A good thing, but you need a screwdriver with triangle pikes not available at your favorite hardware store. At least this special screwdrivers are now part of every ZRC watch set. And to remove the strap from the strap adapter you need a very sharp and thin normal screwdriver. ZRC delivers two screwdrivers with four tops with every watch. Two tops with the triangle pikes and two with sharp normal pikes. Did I mention you always need both screwdrivers to unlock one bar? So changing a strap means: First unscrew the bar at twelve o’clock with the triangle pike, then change the tops and unscrew the second bar from the adapter with the other tops. Let me say: This watch has character , but it’s the character of a diva when it comes to strap change.

So you may have the idea to order the watch with the bracelet and forget the whole strap thing. Ok, that’s 600 Euros more. And the bracelet is a diva, too. No micro adjustments, rather big links. In the last link of each side there is a built-in spring to easily put it over a wet suit and to “breathe” – means changing the diameter under water according to the water pressure. A real good thing for divers. If you are not a diver you have a very good chance the bracelet is either too small or too big. The springs are too tight to make a comfortable wrist if you like your bracelet close to your wrist. That’s the reason I ordered it with a leather strap although the bracelet looks absolutely gorgeous. Right now an Isofrane is on the watch looking very good in my opinion.

All three watches are very comfortable at the wrist. The Doxa is king here, I don’t know a more comfortable bracelet than the Doxa BoR. Which of the three watches ever is your favorite: you will receive a real legend reissued.  

Seiko SLA017Doxa Silver LungZRC Grand Fonds
MovementSeiko 8L35ETA 2824-2
ETA 2824-2
(sold out)
(sold out)
Retail price
with bracelet
3,800 Euro2,500 Euro3,200 Euro

Some macros.




Sixties Vibes are back again – Seiko SPB127 Tokio Limited

It’s been quite a time since I wrote a new blog entry. It’s not that there aren’t any new watches in my portfolio…but most of my the latest additions are new versions of watches I already own (like my new Kakume or my Doxa Silver Lung, see my Instagran channel) or other watches similar to them. It’s been some time since a brand new watch caught me – in design, price and coolness factor. Remember: The highlight in 2019 for me was Seiko’s New Arnie (read my article: But in January 2020 a watch appeared in sneak peaks and the first official pictures caught me at first sight: The Presage Tokio Limited, released in three colors (ivory SPB127, green SPB129 and black SPB131)

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Seikos official announcement (picture property of Seiko Corp.)

Let’s take a look back at history. In 1964 the Olympic Games took place in Tokio. Of course Seiko was the official timekeeper. And Seiko showed his first chronograph: the 5179 monopusher released for a short time before and after the Olympic Games and the discontinued. My friend ajiba54 owns one beautiful piece and like all of his vintage watches it is nearly in mint condition.

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Tokio Monopusher 5179

I made some pictures of it in September 2019 for a calendar and the watch appeared on the Januray page. Coincidence? Fate? I don’t know but it was in January 2020 in my bureau looking at this calendar when I first heard of this reissue of the famous monopusher. But the reissue would not released as a monopusher chronograph but as a three hand watch. Although some people laughed about this fact, most of them stopped laughing when they saw the first pictures. The watch is almost the same design as the 1964 chrono! The second hand of the stop function transformed into the second hand of the recent time. And there was no extra pusher at two o’clock of course. On the dial there is the “Presage” writing. But beside this minor details the design remains the same.

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The SPB127 on a Borealis strap

Ok, why didn’t they made the reissue as chronograph? Oh, they did! The SRQ031 was the first reissue of the Tokio chrono, released in 2019 with a price tag of more than 3.000 Euro. At the same time the reissue of the 6138 Panda chrono was released (the SRQ029) and I think this watch caught most of the attention of the fans. Of course the SRQ031 is no monopusher.

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Seiko SRQ031 (picture property of Seiko Corp.)

Seiko doesn’t have a monopusher chronograph movement in it’s recent portfolio. Developing a new movement would have burst the price tag way over 5k, I guess, maybe 7k or 8k. So Seiko did, what Seiko always does: They released a cool affordable watch for a reasonable price. And as special watch for the new Olympic Games in Tokio 2020 they made it a limited edition of 1964 pieces in each of the three colors. Knowing the original Tokio watch it was clear I had to get the ivory version. And it was also clear that I will not use the steel bracelet and replace it with a tropical style strap.

The announcement said the watch will be released in March 2020. And at the end of March the was available – but only in Japan. Then Covid-19 stopped almost every business and the watches didn’t come to Europe for the next weeks. Ans as we all know, the Olympic Games shifted from 2020 to 2021 (but the name of the Games will still be “Tokio 2020”). In early May I got the long awaited message that my watch is on it’s way to my address…finally!

Let’s have a closer look at the watch. It has a rotating bezel with a 60 minute scale, but no clicks – It is no Diver. It has very elegant dauphin hands and the word “Presage” on the dial, but a very sporty look – it’s no dresswatch. So what kind of watch is it? I will define it as an elegant sports watch. This watch will fit a business suit and a casual outfit as well. So It’s a prefect piece for every occasion.

The applied indizes and Seiko logo, the three-dimensional dial and the polished case adds a distinctive feeling of elegance on a design made for a sports event. I also like the little squares of lumibrite next to the indices, the framed date and the little difference between the 12 o’clock index and the other indices.

Details matter…

The movement is the nuew 6R35, evolved form the 6R15, Seikos choice for their midrange watches. With 21.600 bpH, hacking, hand winding and a power reserve of 70h a modern an reliable movement.

Let’s have a last look at the strap. The watch comes with a steel bracelet in oyster style. I do like this bracelet on the black version emphasizing the more modern look of this version. It’s not my choice of the ivory version. It’s too modern for this vintage style watch in my eyes. For a better choice we only have to look at the ancestor of the SPB127. The Tokio chrono came with a tropic style strap and this is in my opinion also the perfect choice of the reissue. If you are lucky you can get an original strap from the 60s or 70s. They are more shiny than todays straps form Borealis (my recommendation if you don’t get a vintage strap) or other brands. You can see this combo at the picture with the first day cover. With this strap the watch is my favorite Seiko release in 2020 and one of the highlights in my modern collection. Sixties vibes are back again!

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SPB127 on a vintage tropic style strap
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Standing on the shoulders of giants: A short glimpse at the history of the SKX007/009

Today I will talk about the history of the famous SKX007/009 and II will show you four of their predecessors from my collection: The 7548, 7C43 (two pieces) and the 7002. Today Seiko’s references begin with letters followed by numbers but back in the 70s Seiko uses a different system. First comes the four numbers of the movement followed by four numbers of the special model. So we are talking in this article about four different movements including the 7S26. The case of all watches look the same, but they aren’t. We will find some very sophisticated case constructions.

Let’s begin with the 7548. This watch is the first diving watch ever with the case design today we identify with a SKX007/009. But it’s a quartz watch! In fact it’s the first diving watch with a quartz movement. Released 1978, a time where quartz movements were state-of-the-art, the 7548 shares many parts with the mechanical 6309 movement which was used in the Turtle. You can exchange parts between this movements. In fact, the 7548 is a 6309 with a quartz section. It’s a high reliable movement, containing almost no plastic parts, seven juwels and a trimming screw to adjust the speed. A high end movement in it’s time and until today one of the best quartz movements ever. The case had a water resistance of 150m, the dial spells “WATER150mResist” on JDM and “SQ DIVERS 150m” on international references. There are the typical black and Pepsi versions, an orange version and even an extremely rare green version. The 7548 were produced until 1985.

7548 movement (picture by ajiba54)

My watch is a 7548-7000 international version with a German/English day-wheel. Production date was 1980.

Second watch I will talk about is the 7C43. The 7C43 is a quartz movement too and the direct successor of the 7548. It has seven juwels (7548: five jewels) and is adjustable, but contains more plastic parts. The trimmer of the 7C43 is different from the 7548, it doesn’t have a trimmer screw and can only be used once for a change of +/- 0,2 sec/day. It’s also a high torque movement with an advanced power use, so the battery will last at least three years. The successor of this movement is the even more famous 7C46 used in the professional Tunas until today. The movements are more or less the same but the 7C46 contains a larger battery lasting at least five years.

The major change to the 7548 is the construction of the case. There are many (some say 15) changes in this case such as the powerful glass screwing ring structure, the improved anti-magnetism shield and the twin side shield crown structure. So this watch bears the signature “Professional” with a meaning. It’s much more of a highly valued Professional Tuna than todays Solar Tunas, which have the same look but not the same technique as a Professional Tuna. The 7C43 had a different look but almost the same technique. I think this is the best SKX-like watch Seiko ever made.

Another difference between the 7548 and the 7C43 are the white hands of the 7C43 instead of the usual silver hands of all other watches shown here. It’s my favorite watch in this article and the only one of which I own two pieces: A black 7C43-7010 JDM from 1990 with Kanji-/English-day wheel and a Pepsi 7C43-700A from 1987 with German-/English day wheel. Like all international versions, the Pepsi has the “SQ”-sign on the dial. The 7C43 was produced from 1985 to 1991.

7C43-7010 JDM
7C43, on left upper corner magnetic shield (picture by ajiba54)

There was a transitional version 7548-7010 with some aspects of the 7C43 case (200m water resistance and screwing ring structure) but the 7548 movement. This is the watch Brian May from supergroup Queen wears.

Next watch we are talking about is the 7002 with a mechanical movement. It’s not really the first mechanical SKX-like watch. There was an earlier version of the Turtle, the 6309-7290, released 1982, nicknamed “slim case” because the usual 6309 has the typical Turtle-shaped case. I don’t own a slim case Turtle, but my friend @ajiba54 does. So here is a wristshot of this watch from him.

6309-7290 Turtle slim case (picture by ajiba54)

Have a look at the 12 o’clock index and the look at the 12 o’clock index on the 7002 – they are identical and very different from all other watches in this article. So the 7002 is more a successor of the slim case Turtle than of the 7C43. The 7002 appeared in 1988 and was produced simultaneously to the 7C43. The case is a much simpler design and so water resistance dropped to 150m. The movement itself is the successor of the 6309, but if you compare this movements you will find much more plastic parts and less expensive finishing in the 7002. The 7002 is a 17-jewel, non-hacking and non-handwinding movement, very reliable but sometimes not very accurate. BpH was the Seiko typical 21.600.

The watch was manufactured in many different versions, the later references evolved to a 200m water resistance. Unlike all other watches shown here the 7002 has no day-wheel. A second difference to all other watches are the rectangular hour markers instead of the typical round ones. The indices have a light green color (sometimes faded to a light grey) which is also typical for the 7002. You can recognize the JDM from the international versions by the “17 Jewels” on the dial. Mine is a 7002-700J Pepsi JDM from 1989. The 7002 was produced from 1988 until 1996.

7002 movement (picture by ajiba54)

Last watch is the icon SKX007/009 itself, released 1996 as the direct successor of the 7002 and produced for more than 20 years. This watch also came in many different versions, but that’s a story of it’s own. We will focus on the SKX007/009 which for many collectors is “the” Seiko diver. An obvious reason is the long production time, but that’s not the only thing. With its dimension of 42x46mm it fits on every wrist, its very affordable and one of the best-selling watches of all times. In fact it’s one of only two classic affordable dive watches (the other one is the Citizen Promaster) widely used for diving before the time of the diving computers. Of cource this was not the major use of this watch. Most people just wanted a reliable good looking watch for a few bucks. A real no-nonsense diving watch for every purpose.

The 7S26 is the successor of the 7002. It had four more jewels (21) but still no hacking or handwinding feature. Reliable, simple, affordable, a workhorse as one can be.

The references changed with the SKX from the 8-digit-numbers to the mix of literals and numbers all Seikos have today. There are still JDM and international versions, the JDM version with the number of jewels on the dial like the 7002. The references of the JDM versions do have a “J” at the end of the reference number, the international version a “K”. My watch is the SKX009K from 2018.

7S26 movement (picture by ajiba54)

So what’s my conclusion if you like to buy one of this watches? Some hardcore collectors like me own every one of this four watches. If you are interested in vintages and technology look for a 7C43 while they are still affordable. Of all four watches the 7C43 Professional is in my opinion the best one. It sure has the best case construction and a pretty good movement. Don’t thrill up your nose because it’s quartz – the 7C43 (and the 7548 too) are much better movements than our todays cheap quartz movements (even from Seiko) and really worth collecting. I would value them higher than simple mechanical movements like the 7002 or the 7S26. Another good thing is: the 7C43 usually aren’t modded. Modding and AM parts are not widely available. So you have a good chance to get an all-original piece. Same counts for the 7548 which is my #2 in this ranking.

The 7002 seems to be available in unlimited pieces all over the world until today. The big problem is that only 5% are all-original. This was a very popular and very affordable watch especially in Asia and many watchmakers replaced the worn-out original parts with AM parts (bezel, dial and hands). Without knowledge or an expert at hand you will probably buy a watch with AM parts – which has no value for collectors.

The SKX007/009 is discontinued but there are still brand-new pieces out there. Only the SKX009 with Jubilee seems getting very rare. It’s one of the easiest entries in every watch collection. A true icon and still affordable. Of course the budget prices below 200 USD are over. In five years you will regret not buying one in 2020, I am sure. If you are not interested in history and collecting and just want to buy a cool looking watch, look for the new Seiko 5 Sports (“5KX”, my entry: The serious collector is looking for a 7C43 if he doesn’t own one already.


Seiko SBDY049 / SRPE03: Long live the King

The Seiko New Turtle is one of Seiko’s bestsellers. You can get them in various colors, limited editions (limited pieces), special editions (limited time), US special editions, Europe special editions, Thailand special editions, and and and…it’s hard to keep track of all models. I have written about the New Turtle before in my blog:

The design is one iconic design back from the 70s and it’s one of Seiko’s most popular divers. It’s also – after the discontinuing of the SKX – the most affordable ISO Diver in Seiko’s portfolio. It’s a target of many moddings, the replacement of the hardlex crystal (sapphire) and the bezel insert (ceramic) being the most popular upgrades. A few weeks ago Seiko announced a brandnew New Turtle including this popular upgrades from the beginning. The references being SBDY049 for the JDM / SRPE03 for the ROW black model and SBDY51 for the JDM / SRPE05 for the ROW dark green model. Until today it’s not clear to me if it’s a special edition. For sure it’s no limited edition because the watches don’t show numbers on the case. And I don’t found them on any Seiko homepage.

The SBDY049/SRPE03 comes with a steel bracelet while the SBDY051/SRPE03 has a dark green rubber strap attached. As mentioned both of them come with sapphire crystal and ceramic bezel insert. The sapphire crystal has a cyclops lens on the crystal, magnyfying day and date. The dummies were shown on some popular blogs, but I have never seen a hands-on-blog entry until today. So maybe this is a premier here, since I ordered my watch in Japan a few weeks ago. On the 16Th of January the watch was deliverd to my address, most likely one of the first pieces in Europe.

Why did I buy this in Japan, although it’s because of import taxes more expensiv? Hard to tell. I think the Kanji dial was the most important reason. I know, you can mod a Kanji dial, but to my opinion: If it has Kanji it must be a JDM.

Let’s talk about the differences to the former New Turtles (Old New Turtles? Generation 1? I don’t know).

The crystal is sapphire as I said. Yo u can’t see this, which is a plus, because normally Hardlex looks better than sapphire. It has a cyclops on the outside. If you don’t like this it should no big thing for a watchmaker to remove it. I like the look with the cyclops.


The bezel insert is ceramic and therefore scratch resistant. The dots and the numerals are not printed on the surface like the inserts of the other New Turtles (with the exception of the STO III) but engraved. It’s definitely shinier as any other bezel on this series before, absolutely gorgeous.

The bezel itself is also different. But it shares the same height as the New Turtle even if it looks taller. But that’s an optical illusion, because the new bezel doesn’t have round edges as the old one. The pattern on the bezel is also different and emphasizes the illusion of a higher bezel.

New bezel
Comparing old (upper watch) and new bezel.

The “Diver’s 200m” on the dial and the long side of the second hand has a golden color, a little but interesting detail.

Golden details

Absolute gorgeous is the new waffle dial, adding depth and nobility to the watch. It’s not really a clous-de-Paris dial because the squares are somewhat big (about 0,5 mm) but close to this. A little bit Royal Oak in this Seiko.

Waffle dial

Everything is perfectly aligned, the dial, the bezel insert, the cyclops. Personally I don’t think Seiko changed the manufacturing, you probably find misaligned pieces out there. But my four New Turtles don’t have misalignments and the fifth now fits in this row.

What do the old New Turtle and this piece have in common? First of all the case, so every bracelet designed for the New Turtle fits on the SBDY049. I am wearing it right now on an Uncle Seiko H-Link bracelet which is an extraordinary good looking combo in my opinion. The bracelet delivered with the SBDY049 / SRPE03 is the same as every Seiko New Turtle steel bracelet before.

And of course the movement is still the same. Seiko didn’t do any upgrades, the 4R36 is working in this Turtle like in any other New Turtle. Why not a 6R? Well, I think they didn’t intend to make a competitor for the Sumo or the MM200. And with a 4R36 the price in Europe will be 599 Euros. I can’t think of a better watch for this money.

King Turtle on Uncle Seiko Bracelet
King Turtle on original bracelet

Seiko SPB089: The true Story about the Blue Alpinist (really!)

Everyone reading my blog knows Seiko is my favorite watch brand. I really love the history, the innovations and the value for price. And sometimes I am angry people write stupid stuff about the brand (well it’s not the only brand…). They believe they know much better how to design an watch than the world’s biggest watch company. The watches are too expensive or to affordable, too big or too small, to limited or too common. The time Seiko released the SPB089 Blue Alpinist and sold them via the Hodinkee online store I heard many, many complaints about this watch. Especially after prices skyrocketed on Ebay.
So I decided to write a persiflage about Seiko lancing this limited edition…I hope you like it!

So let’s talk about my Blue Alpinist. Matter of fact, I know the real and true story behind this watch from secret sources…it’s as true as my Grandma’s moustache!

Part 1: A secret meeting in Japan

The Seiko watchmaking company, as everybody knows almost bankrupt had called a secret meeting in a teahouse in Tokio. How could they get back into the press news and the blogs? Everybody is angry about launching the SLA019 and SLA012 Marinemaster without “Marinemaster” on the dial – there are no posts and blogs about Seiko anymore since a few months.

A young employee had a bold idea:
“We still have 1959 dials of this discontinued Alpinist SARB017. We could paint them blue and release them as a limited edition. Off course painting dials is difficult, but my brother-in-law works in a painting company, he can dot the job. Doesn’t have to be perfect, I guess…”
“That’s an interesting idea, but how do we sell this freak watch?”
“We make it a US-only edition. There is this company, Hidenkoo or something like that. They sell everything about watches, even those old rusted Rolexes, maybe…”
“Yes, let’s try this. Because it’s your idea, you do the job. If you fail….seppuku!”

Part 2: A transpacific telephone call

“Hello, is this Hidenkoo? This is Seiko…maybe you have heard about us…the company with the watches”
“That’s great! But it’s Hodinkee, please. How can we help you?”
“We are planning a limited edition of the Seiko Alpinist. Only 1959 pieces, selling in your online shop. Is that ok? Please…”
“That’s great! We can sell everything. Your opinion about the price of this strange piece?”
“Well, it’s made of spare parts. Was cheap to built. How about 400 USD?”
“That’s great! Forget this price, we sell them for 600 USD. We are Hodinkee, you know?
“Well, ok, 600 USD…”
“That’s great! Send us this freaks, we care for everything else.

Part 3: A talk between boomers

Like always, some boomers were informed about this call. They gathered together in a dirty motel in The Bronx talking about how many watches they will buy as a preorder and sell for a higher price. Normally they take at least 100 watches, but in this case there is much more uncertainty as usual. A watch made of spare parts? How stupid must one be to buy something like this even for a regular price? Only one of them – the only one who is a watch expert – wants to buy a minimum of hundred watches.
“This is a great piece, iconic design, a fantastic colour, a modern and reliable movement, they will sell for at least 1,000 USD!”
The others don’t believe him. They order 20 watches.

Part 4: An American dialogue

“Boss, I talked with this strange Japanese company about this Blue Alpinist. We sell them for 600 USD, 400 USD is our profit.”
“Man, I hope we succeed with this strange story. Tomorrow we – YOU! – will start the campaign. Call the photograph!”
“Ooops…we don’t have a watch right now. Shit. Ok, no problem, we take the SARB017 and Photoshop will do the remaining. The dial is…I think blue.”
“Blue? What kind of blue? And how about the case?”
“The case is polished, I think. Oh no, it’s matted. Yes. No, polished. I’m not really sure.”
“Ok, ok. Start the campaign. After that – you’re fired.”

Part 5: The night like no other

Hodinkee starts advertising and selling.
45 minutes later the watch is sold out.
One of the boomers suffers a heart attack.


The fired employee tries to spread some facts about the watch like the dials are not very well made, the work of a second class painter. No one believes him.
The Hodinkee management is counting the money and ordering some new Teslas.
Seiko releases the reissue of the Willard.

Alpinist in natural habit
Processed With Darkroom

Seiko SBBN017: Real Tuna and Tuna Style

Today I will talk about a real Seiko classic: The watches with the nickname “Tuna”. The Tuna is very, very Seiko – there is no watch from any other brand with a similar look. It’s a real classic, the first Tuna appeared 1975. And like all real classics, there are cheap Chinese look-a-likes or better: wanna-bees. I don’t like the word “hommage”, they are just cheap copies from companies without any own idea.

Looking at the recent collection we have a broad variety of Tunas in Seiko’s portfolio. On one hand we have the Marinemaster Tunas with 300m, 600m or even 1,000 m water resistance with prices above 1,000 Euro, most of them with quartz, some with mechanical movements. On the other hand we have the far more affordable Solar-Tunas in various colours and various stlyes (Divers and Street-Style). And there is the New Arnie which looks similar to a Solar Tuna, but has different historic roots and a different solar quartz movement. I think we count the New Arnie out, it’s not a Tuna (more about the New Arnie in my entry:

But are the Solar Tunas “real” Tunas? Not for me…but to understand this we first must have a look at the history and the technical features to define the characteristics of a real Tuna.

In 1968 Seiko received a letter from a Japanese diver complaining about Seiko divewatches not good enough for saturation diving. So the Seiko management gave order to Ikuo Tokunaga and his team of engineers to develop “the perfect professional diver’s watch”. Seven years and more than 20 patents later they presented the first Tuna 6159-7010, with a mechanical movement. It was the first diver’s watch with
– a titanium monocoque case
– a titanium shroud with ceramic coating to protect glass and case
– an L-shaped gasket for water resistance and
– a vented rubber strap
While other watches for saturation diving featured helium escape valves to let helium and other gases out again (Rolex and Doxa invention), Seiko decided to shut the watch tighten so no gas could get inside the watch from the beginning. The screw-down retaining system and the shroud gave the watch the nickname “Tuna can”, or short “Tuna”.

In 1978 Seiko replaced this “Grandfather Tuna” by the Golden Tuna 7549, the first Tuna with a quartz movement. From now on most Tunas have quartz movements.

Golden Tuna 7549
7549 Movement (picture by ajiba54)
Golden Tuna 7549 and Golden Tuna Reissue 7C46 (picture by ajiba54)

Today a 7C46 is used. There are still Tunas with mechanical movements (Seiko’s best 8L-movements) but most collectors would agree with my statement: The typical Tuna is a quartz watch. This movements were and are high-quality movements, you can’t compare them with today’s usual cheap full-plastic movements (even from Seiko). The 7C46 is a plastic/metal hybrid movement, adjustable, with 7 jewels and a high torque motor to move the heavy and big hands of the Tunas. On the other side this movement uses an ordinary quartz battery which is available all over the world. And it needs very few power. Seiko guarantees a five year battery life but mostly you’ll have to change the battery after 7-10 years. There is a scale engraved at the caseback where a watchmaker can mark the quarter/year of the battery change. And if power runs low, the second hand jumps two seconds at once. This is a professional movement for a professional watch. No need to thrill up your nose if you only like mechanical movements! The Tuna is therefore a real professional watch: highly reliable, highly legible and almost undestructible.

Of course with this construction Tunas are nothing but small watches. The smallest 300m Tunas have a diameter of ca. 47,5mm. But have in mind, that Tunas don’t have real lugs (just stubs). So the watch dimension is not only 47,5mm from left to right but also from up to down. Believe me, the 300m Tuna is one of my most comfortable watches on my 17,5 cm wrist! Ok, the 1,000m Tunas with a diameter of ca. 51,5mm might be a bit too big for many people (including me).

My SBBN017 on my 17,5cm wrist

Let’s now look at the Solar Tunas, which appeared about 3 or 4 years ago. The movement is a V157 solar quartz movement. That’s a good movement, ok, but in no way like a 7C46. It’s a rather simple quartz movement, used in many Seiko quartz watches. It’s not adjustable, contains no jewels and is made of plastic. The Solar Tuna might look like a Tuna, but contains no L-gasket, the shroud is made of hardened plastic (the professional Tunas have metal or ceramic shrouds) and the movement is rather simple. They have a 200mm water resistance. The Prospex sign on the dial classifies them as ISO-Divers. But nethertheless they are a lot more fragile with their built-in solar panels and the plastic movement. So if you are thinking about getting a real Tuna for about 1/3 the price of a professional Tuna – forget it.

Solar Tuna SNE498

If you are looking for a cool watch with interesting design and no battery change for normal every day use, the Solar Tuna might be a good choice for you. What they have in common with their big brothers is a very comfortable feeling on the wrist and high legibility day and night. But the differences are far greater than the common grounds.

A serious Seiko collector should have a “real” professional Tuna in his collection. You can get one for about 1,200 Euro. That’s a very very good price for a high quality professional watch.

SBBN017 on an Erikasoriginals
Lume on the Solar Tunas is equal good as on the Professional Tunas
Caseback of my SBBN017 with year/quarter marks
Most Tunas are JDM models with Kanji dials
Lugs? What lugs?
Shroud 1
Shroud 2
Signed crown (only old Tunas)
The other Marinemaster
Lume pip
Heavy hands
Domed Hardlex

Seiko 6138/6139 – Automatic for the People

Hope you are all well and wishing my readers a happy and healthy New Year 2020!

My first blog entry in the new year is – of course – about Seiko. I know there are many articles about the first automatic chronograph, but with now two vintage Seiko chronographs in my collection I decided it’s a good theme to start the new year.

As usual we start with history. Back in the beginning of 1969 chronographs were only available with manual winding. Chronographs are a lot more complicated than the usual three hand watches and although the first attempts to create an automatic winding movement dated back to the 20s (the Harwood watches) it took more than 40 years until the first automatic winding movements apperead

Homepage Harwood

It’s a long discussion which company was really the first. Was it Zenith/Movado with their “El Primero” (the name claims the first place for itself), the companies Buren, Heuer, Breitling, Hamilton and Dubois Debraz with the Caliber 11 or Seiko with the 6139?
Facts: The El Primero and the Caliber 11 were shown in March 1969 but were not ready to use (not for industrial manufacturing). The Caliber 11 never was good enough for a reliable production, it took some time and the Caliber 12 to satisfy the requirements. The El Primero too had some minor improvements. But in May 1969 Seiko began to sell the 6139 in the stores with production date numbers starting April 1969. So you can with good arguments say: the first really working automatic chronograph movement was the Seiko 6139. Why didn’t they made a big fuss of it in 1969? Well maybe they were Japanese…Another even better explanation is that in 1969 another invention from Seiko was more important for them – and with good reason. In 1969 the Seiko Astron was released, the first quartz wristwatch ever. To complete the history I will mention the first quartz analog chronograph movement, the 7A28, released in 1983 (

The Caliber 11 was an automatic movement with a chronograph module, while the El Primero and the 6139 were genuine chronograph movements. The 6139 is a construction with a column wheel. Until today this is the best and most reliable approach to construct a chronograph movement. All new developments in the last 10 years followed this principle. Only the famous Valjoux 7750 is different in construction (and because of this difference bears some disadvantages, for instance stiff pushers and sometimes a not exact starting second hand).

Seikos first chronograph ever was released only five years before the 6139, the 5717 monopusher, shown at the Olympic Games in Tokio 1964.

Seiko Monopusher 5717

The El Primero is the only one of this three first movements which is produced until today. It survived the quartz crisis under strange circumstances – but that’s another story.

The 6139 was produced almost unchanged until 1979. One year after the 6139 the second automatic chronograph movement from Seiko appeared, the 6138. Why the second movement had a minor number, I don’t know. The two movements were produced simultaneously.

Let’s have a closer look at the differences between the two movements.

The 6138 offers handwinding, the 6139 doesn’t. So to start the 6139 you have to do the famous Seiko shuffle. None of them offers hacking – a senseless feature without a continuous second hand in both movements.
Both offer quick day-date set but in a completely different manner. The 6138 works like most modern movements, be it automatic, manual winding or quartz: Pulling the crown to the first position allows adjusting day and date. The 6139 adjusts day and date similar to older Seiko movements: Push the crown to change the date. Push the crown even stronger to change day and date.
Both movements are counting seconds with a big central second hand and minutes with a subdial at 6 o’clock. The 6138 also counts hours with a second subdial at 12 o’clock.

Both movements were sold at the same time in the 70s in many variations: with tachymeter bezel, without bezel, with blue, black, white, champagne, golden dials and many more.

Seiko catalogue from the 70s with 6138 models

The most famous 6139 is for sure the legendary Seiko “Pogue” (first Seiko in space) with a Pepsi bezel and a golden dial. Some other colors have also special names, for instance the “Cevert”.

The most famous 6138 are the “Panda” and the “Kakume”, other interesting models are the “Bullhead” or the “UFO”.

In my collection I have the famous blue Kakume (Japanese for “square eyes”) in excellent condition and with original bracelet. Really a highlight among all my watches. It’s an export model with English/Roman day-wheel and “Chronograph Automatic” written on the dial. The JDM Models have a English/Kanji day-wheel and “Seiko 5 Speed-Timer” on the dial. Also the hands are different.

Seiko Kakume
Roman day-date wheel
“Chronograph Automatic” – an export dial

You can see a JDM dial on my 6139 with English/Kanji dial.

Seiko Speedtimer
Kanji wheel
Seiko 5 Speed-Timer – a JDM dial

If you want to buy a 6138/6139 take the best example you can find. Repairing one of this beauties can be rather expensive and difficult. You must first find someone who is able to do this (like my friend ajiba54) . Your usual watchmaker might not be the right person for this watches. And beware of watches with aftermarket parts – which only an expert can tell.

While the 6139 can be found in rather good shape starting at about 500 Euros (some models are more expensive), prices for a 6138 are a bit higher, especially for the Panda and the Kakume. If you fell in love with the panda but you are not the vintage guy – Seiko released an excellent reissue of this watch recently, the SRQ029. Unfortunately not a very affordable piece (retail price is 3.900 Euro) with a high-end chronograph movement.

Seiko Panda Reissue (picture copyright ajiba54)
Comparison Seiko SRQ029 Panda Reissue and Seiko 6138-8020 Panda (picture by ajib54)

I don’t think a Seiko collection is complete without a 6138/6139 watch. So look for them while they are still affordable!

Seiko SRPD29 – A Monster on my Wrist

Dear readers,

Today I will tell you something about my newest acquisition, the Seiko SRPD29 aka Black Monster. A monster? Yes, that’s the nickname the Seiko family gave this watch. To be more specific, it’s the fourth generation of the Monster family.

The Monster is one of the three entry level series to Seiko ISO Divers. The other two are the extremely popular Turtle ( and the Samurai.

The Monster first appeared in 2006 as part of the SKX series. Yes, the famous SKX007 and SKX009 are not the only SKX watches, although if you are speaking of a SKX you mean the 007/009 this days. As part of this series they have the same specs as the famous SKX: The movement is the 7S26, they have 200m water resistance and a screwed down crown. They get the nickname “Monster” not because of the tooth-like indices as many Seiko fans believe, but for the monster tooth profile. Otherwise the 4th generation would be no monster at all – they have square indices.

The Monster Teeth profile

The first generation of the monster contained a black (SKX779) and an orange version (SKX781), two collector items these days. Especially the orange monster seems to play a big role in some people’s watch collection – or is it a coincidence that three of six interviewed collectors named the monster as a special watch for them ( The first generation has also square indices like the newest generation.

SKX779 – 1st generation (picture copyright TIMEX SOCIAL)
SKX781 – 1st generation (picture copyright TIMEX SOCIAL)
SKX779 wristshot/lumeshot (picture copyright TIMEX SOCIAL)

The second generation changed the indices to the tooth-like ones most people identify with a Monster. So the dial resembles of a monster’s mouth… The second generation got the modern 4R36 movement with hacking and handwinding, two features the 7S26 lacked. The second generation is the most popular of all Monster generations.

SRP315 2nd generation (picture copyright uwiest)
SRP583 2nd generation (picture by TIMEX SOCIAL)

In the third generation the Monster got another movement upgrade, the 6R15 was used. This is the same movement more expensive watches from Seiko normally use, like the Sumo, the Shogun or the Alpinist. As a consequence, the day feature was dropped, because the 6R15 doesn’t have this feature. And the magnifying lens appeared on the crystal.

A good overview of the Monster family from 2006 to 2016 you can see here:

The recent fourth generation got the day complication back and so the 4R36 is back too. It’s Seiko’s recent entry level mechanical movement used in the Turtle, the Samurai and many Seiko 5 watches. Not a very accurate movement with a typical accuracy of +/- 25 sec / day. But I must admit that all my Seikos with this movement have a far better accuracy and I own eight of them. The new Black Monster doesn’t have any deviation at all!

They also used the square indices like in the first and third generation and used a new lume: in daylight the indices and hands have a tritium-like vanilla look and in the dark a blueish light which is very rare in the Seiko family. The bezel is now smaller than in the previous generations – as are the indices.

Today the fourth generation only contains three watches: a steel version with black dial, a steel version with a blue radiant dial and an ion-plated black version with a black dial – my SRPD29. When the 4Th generation was presented in spring 2019 the black version was US-only but today you can buy it worldwide. In consequence my watch is a german version with a german day-date wheel.

I must admit I was no fan of the monster series. In my mind there was always the second generation with big bezels and the tooth-like indices which is definitely not my style. Some fans are not very satisfied with the recent Monsters because “they are no true Monsters”. I think they have the very popular second generation in their mind, which is indeed very different. But looking back at history, the second generation was the exception and not the normal design. For myself, this “tame” Monster is much more my style. I was looking for a good-priced blue one when the all-black version appeared in Germany. I have owned two all-black versions before: A Seiko Prospex Land and the recent Seiko Black Tuna. Both of them I sold some time ago, so there was no all-black watch in the box anymore. So it’s my third experiment with an all-black watch and time will tell if it will be a keeper. I also love the special bracelet of the new monster series, but I think the watch will also look great on a brown leather strap. I will try this in the near future. If you are interested how this will look like follow me on Instagram, as soon as I have the new leather strap I will post a picture.

Comparing with the other ISO Diver entry series the monster is a very small family, there are far more variations of the Turtle and the Samurai. I don’t think this will change in the future – the Monster is not everybody’s watch. But from now on I am part of the Monster lovers.

This is my last blog entry in 2019. A merry Christmas and a happy new year 2020 to all my readers! Next entry will be published in January 2020.

Diameter42 mm
Lug2lug48 mm
Height13 mm
MovementSeiko 4R36
Lug width20 mm
My Black Monster
Nightshot with blue lume
Square indices
Magnifying lens
Special bracelet
Blue lume again