SEIKO SPB157
1959 Sport Watch Reinterpretation
Manual and automatic winding capabilities
21,600 vibrations per hour
Power reserve: approximately 70 hours
24 jewels
Gradated blue dial
Date calendar
LumiBrite hands and markers
Curved sapphire crystal with anti-reflective coating on the inner surface
Screwdown crown and see-through caseback
Case diameter: 38.0mm
Stainless steel case
Blue leather strap
Tri-fold clasp with push button release
Water-resistant to 20 bar, 200 meters (660 feet)
Caliber 6R35