Jacques Lemans Men's Automatic Stainless Steel and Alligator Casual Watch(Model: 1205B-ABT02C) Quality Automatic movement; Functions without a battery; Powers automatically with the movement of your arm Mineral crystal Case diameter: 36 mm Stainless-steel case; Silver dial; Date function Water resistant to 99 feet (30 M): withstands rain and splashes of water, but not showering or submersion