SPB157J1 / ALPINIST / PROSPEX / SEIKO
MOVEMENT
Caliber Number - 6R35
Movement Type - Automatic with manual winding capacity
Accuracy - +25 to -15 seconds per day
EXTERIOR
Case Material - Stainless steel
Crystal - Curved sapphire crystal
Crystal Coating - Anti-reflective coating on inner surface
LumiBrite - Lumibrite on hands and indexes
Band Material - Calfskin
Clasp - Three-fold clasp with push button release
OTHER DETAILS
Water Resistance -20 bar
Case Size - Thickness: 12.9 ㎜
Diameter - 38 ㎜
Length - 46mm
Weight - 85.0 g
Other Specifications - Screw case back
- Screw-down crown
- See-through case back
OTHER FEATURES
24 jewels
Date display
Stop second hand function