Seiko Prospex SRP789J1 Turtle “Coke” Automatic Diver’s 200m Made in Japan Watch
Seiko Prospex SRP789J1 Turtle “Coke” Automatic Diver’s 200m Made in Japan Watch
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Product Details
Seiko Prospex SRP789J1 is the Made in Japan J1 version of Seiko’s iconic Turtle automatic diver. Its cushion-shaped stainless steel case, black dial and black/red “Coke” unidirectional bezel give the watch the unmistakable look of Seiko’s classic professional dive-watch lineage. Oversized LumiBrite markers and hands provide strong low-light legibility, while the day/date display at 3 o’clock adds everyday practicality.
Inside is Seiko’s proven 4R36 automatic movement with manual winding and stop-seconds functionality. The movement uses 24 jewels and delivers approximately 41 hours of power reserve. The watch is protected by Hardlex crystal and a screw-down crown and screw case back, with 200-meter diver’s water resistance.
Technical Specifications
| Brand | Seiko |
| Collection | Prospex Sea / Turtle |
| Reference | SRP789J1 |
| Gender | Men |
| Movement | Automatic with manual winding |
| Caliber | 4R36 |
| Jewels | 24 |
| Power Reserve | Approx. 41 hours |
| Functions | Hours, minutes, seconds, stop-seconds, day/date |
| Case Material | Stainless steel |
| Case Diameter | 45.0 mm |
| Case Thickness | 13.4 mm |
| Lug Width | 22 mm |
| Crystal | Hardlex |
| Dial | Black with LumiBrite hands and indexes |
| Bezel | Black/red “Coke” unidirectional rotating bezel |
| Crown | Screw-down |
| Case Back | Screw case back |
| Bracelet | Stainless steel |
| Clasp | Three-fold clasp with secure lock, push-button release and extender |
| Water Resistance | 200 m / 660 ft diver’s |
| Origin | Made in Japan J1 version |
A bold Seiko diver with collector-favorite Turtle proportions, dependable 4R36 mechanics and a distinctive Coke bezel.
Shipping & Returns
Complimentary U.S. shipping on eligible orders. Returns are accepted within 30 days subject to our return policy. See our shipping and refund policies for full terms.
Warranty & Authenticity
Every watch sold by VOLICES is inspected for authenticity before shipment. Warranty coverage varies by brand and model; refer to the included documentation or contact VOLICES for product-specific details.