The SEIKO PROSPEX ALPINIST WATCH SPB157 combines precision engineering with rugged reliability for the modern adventurer. Powered by the automatic 6R35 caliber movement with manual winding capability, this timepiece delivers exceptional accuracy within +25 to -15 seconds per day and boasts an impressive 70-hour power reserve.
Built for durability, the 38.0mm stainless steel case features a curved sapphire crystal with anti-reflective coating and a screw-down crown for enhanced water resistance up to 20 bar. The see-through case back reveals the intricate 24-jewel movement, showcasing the craftsmanship within.
Designed for legibility in any condition, the dial features LumiBrite hands and indices that glow in low light. A practical date display and stop second hand function add everyday utility. The premium cow leather band with three-fold clasp ensures comfort and security, while the 20mm lug width accommodates easy strap changes.
At just 85 grams with a 12.9mm thickness and 46mm lug-to-lug distance, this watch balances presence with wearability—ideal for both mountain expeditions and daily wear.
Automatic
6R35
Stainless steel case
38 mm
46 mm
20 bar, 200 meters (660 feet)
12.9 mm
38
Blue
Blue leather strap
Bracelet
Leather Strap
20
- 1959 Sport Watch Reinterpretation
- Manual and automatic winding capabilities
- Gradated blue dial
- Date calendar
- LumiBrite hands and markers
- Screwdown crown and see-through caseback
- Tri-fold clasp with push button release
SPB157
Prospex
Men
Curved sapphire crystal with anti-reflective coating on the inner surface
Why Choose Us
People Also Bought
Here’s some of our most similar products people are buying. Click to discover trending style.
