SEIKO PROSPEX Solar Diver's 200M SNE599P1
 
Solar powered generating system, meaning that there is no need to ever change batteries
Caliber V157
Powered by light energy
Power Reserve approx. 10 months (when fully charged)
Accuracy: +/- 15 seconds per month (between 5°C and 35°C)

Specifications
Glass Material:  Sapphire crystal
Case: Stainless steel
Screw back. Screw-down crown
Size: 41 mm,
Thickness: 11.3 mm
Lug-to-lug: 48.8mm
Weight: 157g
Water resistance: 200m
Band: Stainless steel bracelet
Three-fold clasp with secure lock , push button release with extender
Dial: Black