Men's Eco-Drive Marine 100m Chronograph Sports Watch (AT2437-13E).

Fueled by light. Any light. A watch that never needs a battery. Driven by a revolutionary light-harnessing technology that converges time, light, and the future.

Details:

• Band: Urethane
• Dial Color: Black
• Case Size (mm): 44
• Case Material: Stainless Steel with Black Ion Plating & Black Aluminium Ring
• Water Resistance: 10 ATM
• Warranty: 3 Years 
• Functions: 1/1 second units,chronograph 60 minute timing, 24 hrs display, Date display,Eco-Drive ( recharged by any lightsource; No need to change battery),Insufficient Charge Warning Function,Overcharge Prevention Function