Seiko Diver’s 55th Anniversary, the 1965 “62MAS” Re-Creation SLA037J1

Seiko’s fantastic reputation in the field of jump watches is verifiable. We’re talking top-level entertainer, individual from a fine club of influencers that aided formed what the advanced plunge watch is today. However, on the in spite of some Swiss competitors and their 1953 presentations, Seiko sat tight for a couple of more years before diving in. In 1965, the Japanese manufacturer set the pace with a significant watch, the “62MAS”, otherwise called the primary expertly arranged jump watch of the brand. This year, Seiko is celebrating 55 years of “professional specifications” (favorable to specs… Prospex) jump watches with a set of three of recreations and today, we go involved with “the first”, the Seiko Prospex Diver’s 55th Anniversary 1965 Re-Creation SLA037J1.

The 1965 Seiko 6217-8000, a.k.a 62MAS

Knowing Seiko’s commitment to the expert specs jump watch, there’s no getting away from the foundation tale about the watch that began everything, the watch that would impact creation for a very long time , a watch that really helped shape the actual meaning of a cutting edge plunge watch – and, for the record, the watch that is the motivation for today’s reviewed piece.

Seiko has made looks for pretty much every reason and has been associated with instrument watches made for proficient divers since 1965. The brand has developed its idea radically throughout the long term, with for example the 6159-7010 Tuna created in 1975 which presented an inventive, super ensured titanium case made for immersion plunging. Yet, the one that began everything was dispatched in 1965 under the reference number 6217-8000, which is generally referred to in the gathering community as the 62MAS – MAS being an abbreviation for “autoMAtic Selfdater”.

Being the principal, the granddad of all Seiko plunge watches, it affected the upcoming creation and a few of today’s Seiko Prospex Diver’s observes still rely on a portion of its plan components – hands, bezel, shape case, indexes… It took some time, notwithstanding, for Seiko to enter the market for proficient jump watches. In 1953, Blancpain dispatched the Fifty-Fathoms, trailed by Rolex and its Submariner. In 1957, Omega got together with the Seamaster 300. Yet, as the market for proficient plunge watches and, as a ramification for recreational jump observes as well, was grounded, Seiko chose to offer its own interpretation of the idea, with the 62MAS.

The determination sheet of the Seiko 62MAS is both impressive for the period and obsolete compared to current plunge watches. The watch was a 37mm vigorous piece of steel, with a sharp case and strong shoulders – there’s no keeping the instrumental look from getting the watch. The case has a commonplace mid-1960s look and a bended profile, just as the Seiko contact, with a roundabout brushed surface. The watch was evaluated for 150m water-resistance (genuinely great in those days), had a screwed caseback however the crown wasn’t screwed-down yet. Along these lines, the bezel, already highlighting the exemplary diver’s hour long scale, was bidirectional. The 62MAS was powered by the 2.5Hz programmed type 6217.

The dial likewise looks very recognizable as it affected a few ages of Seiko diver’s watches. We find here a dim (regularly blurred on vintage models) dial with a sunray-brushed example and curiously large rectangular hour markers and hands, chrome plated and liberally loaded up with radioactive lume. The date is situated traditionally at 3 o’clock, as is the crown. This is deserving of a notice since the 62MAS is the solitary Seiko proficient plunge watch with this design – all the upcoming Prospex diver’s watches would feature the crown at 4 o’clock, which turned into a signature element.

While fairly extraordinary in plan, regarding Seiko’s timetable for plunge watches, the 62MAS is loaded with components that would impact 55 years of creation. In that capacity, this watch must be considered critical – despite the fact that actually talking, the hey beat Automatic Diver 300m Ref. 6159-7001 and the 1975 Professional Diver’s 600m “Fish” Ref. 6159-7010  and all the upcoming “Tuna” watches had greater influence.

I thought it was critical to remind you about the 1965 Seiko Diver’s 62MAS ref. 6217-8000, in light of the fact that today’s review will be focussing on a watch that is generally inspired by this very watch.

The Seiko Prospex Diver’s SLA037J1

If you’re a Seiko jump watch devotee, this new reference SLA037J1 should feel very recognizable to you… And you’d be all in all correct to think along these lines, as it shares a ton for all intents and purpose with another 1965-inspired piece, dispatched at Baselworld 2017, the SLA017 . Nonetheless, the watch that Seiko is dispatching to praise the 55th anniversary of its inclusion in plunge watches isn’t simply another tone. Absolutely, case, dial and bezel feel practically indistinguishable, in any case, there’s more than meets the eye, and that has to do with mechanics and materials.

Design-wise, there can be no questions concerning the prompt filiation between the first 62MAS and its advanced recreation. Outwardly, most subtleties have been reutilized, giving strong vintage-inspired content. Most components, if not 100% precise, are at any rate close fit as a fiddle and configuration, just as in their position. In any case, here, you could contend that this isn’t different from the SLA017, and which is all well and good. Subsequently, we need to delve further into the subtleties to comprehend what’s extraordinary about this 62MAS-inspired SLA037J1.

Case and design

Shapes and configuration are a certain something, extents are another. This is where this recreation may record the biggest advancement over the vintage model. The vintage watch was not little by any means… harking back to the 1960s. At 37mm, it was on the enormous side and still is respectable today. However, the 2020s call for bigger watches and this new SLA037J1 has developed somewhat, yet not unreasonably. The case is “only” 39.9mm, making it comfortable on the wrist, compact (carry to-haul is simply beneath 48mm) and still imbued for certain retro emotions. The case isn’t slim, nonetheless, at 14.7mm however the super domed sapphire gem is generally responsible for that.

The generally speaking state of the 62MAS has been respected, with vigorous incorporated hauls, sharp points and straight flanks. The top surface of the case has a roundabout brushed completion, while the sides are cleaned – and indeed, they have been executed gratitude to Grand Seiko’s adored Zaratsu “distortion-free” method, resulting in a precise mirror finish. This is where this 1965 Re-Creation surprises… It may appear as though a reason constructed instrument however it is delightfully executed… This is an intentional decision by Seiko, which has settled on a top of the line situating of this gatherer arranged piece.

Regarding the case, the material picked is additionally uncommon. None of your exemplary 316L tempered steel here, yet Seiko’s own “Ever-Brilliant Steel.” This compound advantages from more brightness and a more white tint, which is additionally upgraded with the Zaratsu cleaning. It is additionally more consumption resistant than customary steel, which likewise clarifies its utilization on a plunge watch.

On the in spite of the 62MAS, this SLA037J1 Re-Creation utilizes contemporary answers for make it a vintage-inspired however currently prepared jump watch. Observing the ISO principles, the bezel is unidirectional. It actually features a completely graduated plunging scale, applied on a reflexive metallic supplement with a glowing spot at 12 o’clock. The bezel has a firm, wonderful snap when worked. Along these lines, to ensure the 200m/20 ATM water-resistance, the crown screws-down, much the same as the plain caseback (beautified, much the same as the old model, with a dolphin).

Dial and hands

While the 2017 ref. SLA017 played on the vintage trend with a dark, marginally blurred dial that repeated the first 1965 watch, this 2020 release of the 62MAS mistreats colors. Like its two kin in the 55th-anniversary assortment , this SLA037J1 has a blue-dim dial, a discreet shading that suits the general idea well and adds a slight portion of advancement and inventiveness to this piece. The dial is delicately brushed, offering reflections and playing with the encompassing light.

Hands and files are indistinguishable from the 62MAS fit as a fiddle and situating, and to the 2017 form in execution. The applied markers are huge, adjusted rectangles with a cleaned surface which differences well with the blue foundation. The markers are liberally loaded up with Lumibrite, Seiko’s own radiant material. To coordinate the markers, the date has a metallic edge and its presence is supported here. The hands are likewise devoted to the first watch, with a similar rectangular shape, albeit the execution is undeniably more sophisticated.

Just like Grand Seiko watches, the hands of the SLA037J1 have different features, with huge inclines on the sides and a mirror-cleaned top surface. Not exclusively is this arrangement wonderful to the eye and shows regard for subtleties, however it likewise encourages time reading as the hands stand apart from the blue background.

Inscriptions on the dial honor the 62MAS as well, with the “Diashock” notice at 6 o’clock, close to the gem check. However, here, you’ll notice two things: “HI-BEAT” and “37 Jewels”… and that is a pretty obvious sign that inside the case there isn’t a standard movement.


Regarding the particulars of this watch, the real oddity is inside the situation. Rather than the type 8L35, an exemplary 4Hz development, found in the SLA017, the 2020 form of this watch is furnished with a better quality, hello there beat type, the 8L55. What is this development? To simplify it, it is a non-Grand Seiko rendition of the Caliber 9S85, notable to us and utilized as a base for most hello there beat programmed Grand Seiko watches.

The 8L55 is precisely indistinguishable from its Grand Seiko partner and was created for top-level Seiko plunge watches. The stuff train, motor chain, winding framework and regulating organ are the equivalent, so is the quantity of gems, the 5Hz frequency (36,000 vibrations/hour) and the 55-hour power reserve. It additionally retains innovative features, for example, a “Spron 610” composite (for the hairspring) and parts manufactured by MEMS innovation (get away from haggle forks).

Compared to the Grand Seiko adaptation, the differences are generally on the design of the plates and scaffolds – despite the fact that the 8L55 is already pretty all around enriched – and how the development is changed. Seiko declares a +15/ – 10 seconds/day exactness (compared to +5/ – 3 s/d for Grand Seiko), which is known to be on the cynical side of things. In this way, despite the fact that not as very good quality as what you’ll find in a Grand Seiko watch, the 8L55 development of the SLA037J1 is already a fine piece of watchmaking.


The new Prospex Diver’s 55th Anniversary 1965 Re-Creation SLA037J1 additionally comes with a fresh lash. While the SLA017 accompanied a thick, very striking waffle-like and lustrous silicone (a real residue magnet…), Seiko has decided on something somewhat milder and more rich for its new watch.

The new tie is as yet made of silicone, yet now with a matte completion, a more slender profile and a jungle like example, which suits the 1960s style of the watch. It comes in blue to coordinate the dial and features a steel pin clasp just as a brushed and angled steel holder, engraved with Seiko. The tie feels comfortable straight out of the box.

Price, considerations and availability

The Seiko Prospex Diver’s 55th Anniversary 1965 Re-Creation SLA037J1 will be a restricted release of 1,100 pieces, accessible overall July 2020. It will likewise be remembered for a special commemorative box with the two other 55th-anniversary re-creations, accessible in 100 models in May 2020.

Regarding the value, I’m not going to deny the way that this SLA037J1 is an exorbitant watch, particularly since it has Seiko imprinted on its dial. At EUR 6,500, it is unmistakably in Grand Seiko region. However… disregarding the plan, which is obviously Prospex-arranged, the 1965 Re-Creation shares more for all intents and purpose with Grand Seiko watches than with a Samurai or a Turtle watch. The material utilized for the case is impressive and offers a heavenly radiance, its getting done (with Zaratsu cleaning) is comparable to GS models, the development is fundamentally a diver-arranged form of what you’ll find in a Hi-Beat Grand Seiko – with less enrichment and a different change measure. So indeed, this is an exorbitant cost for a Seiko, however this is likewise a very good quality piece that can undoubtedly compete with top-level Swiss brands.

More subtleties to be found at .