Prospex Alpinist Mechanical GMT – SPB377J1
The Seiko Prospex Alpinist Mechanical GMT SPB377J1 combines classic outdoor-inspired styling with advanced mechanical watchmaking. Featuring a striking blue dial, stainless steel case, and matching leather strap, this timepiece delivers a distinctive look with exceptional functionality. Powered by Seiko's Caliber 6R54 automatic movement, it offers an impressive 72-hour power reserve and GMT functionality, allowing you to track a second time zone with ease. The rotating compass inner ring adds practical functionality for outdoor exploration, while the curved sapphire crystal with anti-reflective coating ensures excellent clarity. LumiBrite hands and hour markers provide enhanced visibility in low-light conditions. With 200-meter water resistance, a screw-down crown, and durable stainless steel construction, the SPB377J1 is designed for adventure and everyday wear. Combining heritage-inspired details with modern performance, this Alpinist GMT is an excellent choice for watch enthusiasts and travelers seeking versatility, reliability, and timeless style.
Key Features
- Brand: Seiko
- Collection: Prospex Alpinist
- Model: SPB377J1
- Movement: Automatic with manual winding (Caliber 6R54)
- Power Reserve: Approximately 72 hours
- GMT Function: 24-hour hand for dual-time display
- Case Material: Stainless steel with super-hard coating
- Case Diameter: 39.5mm
- Case Thickness: 13.6mm
- Crystal: Curved sapphire crystal with anti-reflective coating
- Dial Color: Blue
- Strap: Leather
- Water Resistance: 200 meters (20 bar)
- LumiBrite: Hands and hour markers
- Additional Features: Rotating compass inner ring, screw-down crown, and exhibition case back
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