Prospex Alpinist Mechanical GMT. Designed for those who treat life as the ultimate adventure, the Seiko Prospex line meets every challenge with technological excellence and style. Part of a rich legacy of innovation in high-intensity timekeeping, Prospex continues to celebrate a long history of sports watch excellence with re-creations and re-interpretations of landmark achievements.

Case Diameter: 39.5mm

Case Material: Stainless steel case with super-hard coating

Crystal Material: Curved sapphire crystal with anti-reflective coating on the inner surface

Water Resistance: 20 bar, 200 meters (660 feet)

Dial Color: Blue

Strap: Blue leather strap

Movement: Automatic

Caliber: 6R54

Power reserve: approx. 72 hours

Style#: SPB377