SEIKO PROSPEX Solar  Diver's 200M SNE593P1
 
Solar powered generating system, meaning that there is no need to ever change batteries
Caliber V157
Powered by light energy
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: 42.8 mm,
Thickness: 10.7 mm
Weight: 93g
Water resistance: 200m
Band: Silicone
Dial: Blue