Features proprietary Eco-Drive technology. Powered by light, any light. Never needs a battery.; Stainless steel; sapphire crystal; Case size: 40mm; Foldover clasp closure; Water resistant to 20 ATM; Japanese solar quartz chronograph movement; Khaki green dial with date display at 4 o'clock; 3 sub-dials; slide-rule scale bezel; Stainless steel link bracelet; Manufacturer's five-year limited warranty; Photo may have been enlarged and/or enhanced; Imported