Swiss Legend Men's 50029-SS-08-DA02M Glamorous Collection Automatic Stainless Steel Watch with Winder Precise 18-jewel Swiss automatic movement; functions without a battery; powers automatically with the movement of your arm Scratch-resistant sapphire crystal; polished stainless steel case; brown ostrich strap Date function Genuine high-grade green malachite dial with stainless steel hands and roman numerals; luminous hour markers; screw down crown; exhibition case back; watch winder included Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving