| Reference Ocarat | #127186 |
| Reference | HBB001K1 |
| Brand | Seiko |
| Product Type | Watch |
| Gender | Men |
| Color | Blue Gray |
| Material | Steel |
| Material Quality | Stainless Steel |
| Finish | Polished / Shiny |
| Warranty | 3 years |
| Thickness (in mm) | 12,25 |
| Diameter (in mm) | 41,70 |
| Manufacturing | Japan |
| Warranty Type | International |
| Labels and Certificates | Authorized Retailer Limited Edition |
| Case Shape | Round |
| Bezel | Rotating Unidirectional |
| Dial Finish | Grooved |
| Watch Case Back | Screwed caseback |
| Glass Quality | Hardlex |
| Watch Case Types | Date |
| Buttons | 1 Crown |
| Screw Crown | Yes |
| Water Resistance (in ATM) | 20 |
| Frequency | 21,600 A/h (3 Hz) |
| Movements | Automatic (rotor) |
| Movement Type | Japanese Movement |
| Movement Brand | Seiko Corp. |
| Calibers (Movements) | Seiko 4R35 |
| Calendar and Time | Dates Hours Minutes Seconds |
| Power Reserve (Maximum Duration) | 41 Hours |
| Display Type | Analog (hands) |
| Display Specifications | Indices and railroad track Lumibrite Hands Lumibrite Indices |
| Bracelet Material | Stainless Steel |
| Strap Color | Gray |
| Watch Clasp | Single Deployment Clasp |
| Lug Width (in mm) | 20,00 |
| Limited Edition (Collector) | Yes |
The Seiko Prospex watch is a sophisticated timepiece that brings together dynamic style and top-tier functionality. Its round stainless steel case measures 41.70 mm in diameter with a sleek thickness of 12.25 mm. The case is enhanced by a unidirectional rotating bezel in blue tones for optimal underwater readability. Hardlex glass protects the dial and reinforces overall robustness. A screw-down caseback ensures maximum water resistance. A crown winder with a screw-down crown on the right side of the case locks settings securely in place. This watch is part of a limited edition of 9,999 non-numbered pieces.
The dial features an elegant striped finish in gray, delicately catching the light to reveal subtle reflections that add visual depth. The hands and indexes are coated with Lumibrite, ensuring enhanced visibility in low-light conditions. The hands sweep smoothly along the minute track, delivering precise timekeeping. A date window at 3 o'clock displays the date for added convenience.
At the heart of this timepiece beats the Seiko 4R35 automatic movement, a showcase of Japanese watchmaking technology. Running at a frequency of 21,600 bph (3 Hz), this caliber delivers smooth, accurate performance. Its 41-hour power reserve allows extended use without constant winding, for effortless everyday wear. Developed exclusively by Seiko Corp., it offers essential functions including hours, minutes, seconds, and date display.
The stainless steel bracelet of this watch reflects its character: robust and elegant. Its gray tone pairs seamlessly with the dial for a harmonious, modern design. This bracelet, 20.00 mm wide at the lugs, features a single deployment clasp for easy, secure fastening.
Water resistance is a standout feature of the Seiko Prospex, rated up to 20 ATM. This means the watch is not only built for daily water exposure but is equally at home in amateur diving environments. The screw-down crown and screw-down caseback provide maximum protection against water ingress, so you can dive into aquatic activities with complete confidence.




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Prospex Watch HBB001K1
(Ref. 127186)