The Seiko Presage Style60’s GMT SSK015 is a 40.8 mm limited-edition automatic with Seiko’s 4R34 GMT movement, a 24-hour bezel and 5 bar water resistance. Seiko announced it as part of releases marking the 110th anniversary of its first wristwatch, with production limited to 3,500 pieces. Its original U.S. recommended retail price was $625; that is an announcement-era figure, not a current price.
What the SSK015 is
The SSK015 belongs to Seiko’s Presage Style60’s GMT line. Seiko positioned the limited edition among watches celebrating the 110th anniversary of its first wristwatch. The manufacturer specified a production quantity of 3,500. The announcement does not establish the model’s current availability.
Its distinguishing combination is a GMT display, a thin 24-hour aluminum bezel, a hairline-finished dial and a leather strap. Seiko describes the GMT design as drawing on the atmosphere of 1960s classic cars; that is the brand’s design framing, rather than an independent assessment.
Movement and GMT function
The watch uses Seiko Caliber 4R34, an automatic mechanical movement with a GMT function. Seiko specifies 21,600 vibrations per hour, 24 jewels and a 41-hour power reserve. It also lists independent adjustment of the 24-hour hand, allowing that hand to be set separately from the main time display. These are manufacturer specifications, not independently measured performance figures.
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SSK015 specifications
| Specification | Seiko’s published information |
|---|---|
| Model | Presage Style60’s GMT SSK015 |
| Movement | Automatic mechanical Seiko Caliber 4R34; GMT function |
| Movement figures | 21,600 vibrations per hour; 24 jewels; 41-hour power reserve |
| GMT adjustment | Independent adjustment of the 24-hour hand |
| Case | Stainless steel; 40.8 mm diameter; 13.0 mm thick |
| Crystal | Box-shaped Hardlex |
| Case back | See-through screw case back |
| Water resistance | 5 bar |
| Magnetic resistance | 4,800 A/m |
| Strap | Leather with buckle; Seiko says the leather is sourced from LWG-certified tanneries |
| Edition quantity | 3,500 |
| U.S. recommended retail price | $625 at announcement |
All figures in the table are Seiko-published specifications or announcement information. The 5 bar rating should not be read as a 100 m rating. Seiko also states that release prices and specifications are subject to change.
Design and Style60’s heritage
Seiko traces the Style60’s design to its 1964 Crown Chronograph, which the brand identifies as its and Japan’s first wristwatch equipped with a stopwatch function. The collection’s visual cues include box-shaped glass, faceted indexes and sharply shaped hands, alongside contrasting dial finishes intended to evoke a vintage look while supporting legibility.
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For the GMT models, Seiko highlights a slim aluminum bezel marked for 24 hours and a hairline-finished dial. The 4R34 was the first GMT movement introduced in the Style60’s series, according to Seiko’s collection information.
How it relates to other Style60’s GMT models
Seiko’s official U.S. collection listing includes the SSK009, SSK011 and SSK013 as Style60’s GMT models. They provide family context, but the live listing is not a complete historical release record, and the available information does not support a like-for-like comparison of their prices or specifications with the SSK015.
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The clearest distinction established for the SSK015 is its limited-edition status and 3,500-piece quantity. To compare it with another reference, check the exact dial, bezel, strap, case measurements, water-resistance rating and movement details for that model, as well as whether it is a limited release. Do not assume those details are identical across the family.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Price and availability
Seiko’s announced U.S. recommended retail price was $625. The announcement year is not established in the available source record, so this price should be treated only as historical announcement context. Current authorized-dealer stock, current retail pricing and resale value have not been verified. Because the SSK015 was limited to 3,500 pieces, confirm the precise reference, condition, seller and regional variant before relying on a listing.
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