Jacky L. 07/04/2025
| Reference Ocarat | #45913 |
| Reference | SSA343J1 |
| Brand | Seiko |
| Product Type | Watch |
| Gender | Men |
| Color | Black Blue Gray |
| Material | Steel |
| Material Quality | Stainless Steel |
| Warranty | 3 years |
| Thickness (in mm) | 14,50 |
| Diameter (in mm) | 40,50 |
| Manufacturing | Japan |
| Warranty Type | Europe |
| Labels and Certificates | Authorized Retailer |
| Case Shape | Round |
| Dial Finish | Guilloché Soleillée |
| Watch Case Back | Exhibition Case Back Screwed caseback |
| Crystal Shape | Domed |
| Glass Quality | Hardlex |
| Buttons | 1 Crown |
| Water Resistance (in ATM) | 5 |
| Frequency | 21,600 A/h (3 Hz) |
| Movements | Automatic (rotor) |
| Movement Type | Japanese Movement |
| Movement Brand | Seiko Corp. |
| Calibers (Movements) | Seiko 4R57 |
| Movement Base (Origin) | Date |
| Calendar and Time | Dates Hours Minutes Seconds |
| Counters and Durations | Power reserve |
| Power Reserve (Maximum Duration) | 41 Hours |
| Display Type | Analog (hands) |
| Display Specifications | Indices and railroad track |
| Number of Counters (Additional) | 2 |
| Bracelet Material | Calfskin |
| Strap Color | Black |
| Bracelet Material Finish | Crocodile-print leather |
| Topstitching | Yes |
| Watch Clasp | Butterfly deployment clasp |
| Lug Width (in mm) | 20,00 |
| Collection | Seiko Presage |
The Watch
In 2017, Japanese watchmaker Seiko unveiled its new Presage collection - launched at BaselWorld 2017 and inspired by the charm and sophistication of cocktail bars. Every model in the collection represents a cocktail, each rendered in its own signature color palette. This "Sky Diving" model, proudly Made in Japan, features a stainless steel case measuring 40.5 mm in diameter and 14.5 mm thick. A Hardlex crystal tops the case, while the screw-down exhibition caseback reveals the automatic movement's oscillating rotor - a delight for lovers of traditional fine watchmaking. This elegant, refined piece is yet another testament to Seiko's unmatched craftsmanship and heritage.
The Dial
Round and luminous, this dial owes its captivating charm to a sunray finish that radiates elegance and modernity. Dressed in a gorgeous grey hue, it takes on a striking blue-grey tint depending on the angle of the light. A guilloché finish adds further refinement to the overall look. Silver pointed baton hour markers stand out against a black minute track running around the dial's edge. Three delicately hand-curved hands - crafted by master watchmakers - underscore the watch's extraordinary refinement, indicating hours, minutes, and seconds in silver tones. At 6 o'clock, a date subdial features a blue-tipped hand. A power reserve indicator in gauge form sweeps from 12 o'clock to 4 o'clock.
The Movement
Beating at the heart of this watch is a Japanese automatic caliber 4R57, oscillating at 21,600 vph (6 beats per second). It offers manual winding capability - made especially effective by the crown's ergonomic shape - along with a 41-hour power reserve thanks to a Spron 510 mainspring, a Seiko-patented material derived from Spring Drive technology. With 29 jewels, it achieves an accuracy of -15/+25 seconds per day.
The Bracelet
This refined timepiece comes standard with a black crocodile-embossed calfskin leather strap that lends an effortlessly dressed-up look to any outfit. It fastens with a push-button deployment clasp, and the lug width is 20 mm.
Water Resistance
This watch is water-resistant to 5 ATM (50 m). Built to be as beautiful as it is tough, it can handle everyday splashes with ease. You can wear it in the shower, though the Ocarat team recommends leaving it on the edge of the sink to preserve its shine and longevity. Swimming and diving are a different story - we strongly advise against submerging this watch, as water damage can lead to costly repairs.



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Customer reviews
Jacky L. 07/04/2025
Andy P. 08/01/2025
Seiko Presage Automatic Cocktail Watch SSA343J1 "Sky Diving"
(Ref. 45913)