Description
SEIKO PROSPEX SBDC087 Alpinist
The SEIKO PROSPEX SBDC087 Alpinist combines a black dial with a stainless steel case and bracelet. Rooted in the Alpinist tradition that began in 1959, this Japanese-market men's watch brings outdoor-inspired functionality to a versatile everyday design.
Automatic Caliber 6R35 with a 70-Hour Power Reserve
The Caliber 6R35 mechanical movement supports both automatic and manual winding. Its approximately 70-hour power reserve when fully wound helps keep the watch running during time away from the wrist. A stop-seconds function assists with precise time setting, while a date display adds everyday convenience.
Practical Features for Outdoor Use
An internal rotating compass ring provides a simple sun-based directional reference. The screw-down crown and 20-bar water resistance support active everyday use, while LumiBrite on the hands and hour markers helps with reading the time in low-light conditions.
Sapphire Crystal and Stainless Steel Construction
The stainless steel case measures 39.5 mm across and 13.2 mm thick. A sapphire crystal with a date magnifier and anti-reflective coating on the inner surface helps keep the display clear. The stainless steel bracelet completes the design, and the screw-in exhibition case back offers a view of the movement.
Highlights
- SEIKO PROSPEX Alpinist Japanese-market model
- Black dial with a stainless steel case and bracelet
- Caliber 6R35 automatic movement with manual winding
- Approximately 70 hours of power reserve when fully wound
- Internal rotating compass ring
- Sapphire crystal with date magnifier and inner anti-reflective coating
- LumiBrite on the hands and hour markers
- Screw-down crown and 20-bar water resistance
- Made in Japan
Specifications
| Brand | SEIKO |
|---|---|
| Collection | PROSPEX Alpinist |
| Model | SBDC087 |
| Gender | Men's |
| Market | Japanese Domestic Market (JDM) |
| Distribution | Seiko Global Brand Core Shop model |
| Movement | Mechanical automatic with manual winding |
| Caliber | 6R35 |
| Accuracy | +25 to -15 seconds per day |
| Power Reserve | Approximately 70 hours when fully wound |
| Jewels | 24 |
| Functions | Hours, minutes, seconds, date and stop-seconds function |
| Dial Color | Black |
| Case Material | Stainless steel |
| Case Dimensions | 46.6 mm lug-to-lug × 39.5 mm width × 13.2 mm thickness |
| Crystal | Sapphire with date magnifier |
| Crystal Coating | Anti-reflective coating on the inner surface |
| Bracelet | Stainless steel, silver tone |
| Compass | Internal rotating ring for approximate sun-based direction finding |
| Luminous Material | LumiBrite on hands and hour markers |
| Crown | Screw-down winding crown |
| Case Back | Screw-in exhibition back, stainless steel and glass |
| Water Resistance | 20 bar |
| Magnetic Resistance | Yes |
| Weight | Approximately 147 g |
| Country of Origin | Japan |