Kenneth Cole REACTION Men's Automatic Stainless Steel and Leather Casual Watch, Color:Black (Model: KC1451) Quality Automatic movement; Functions without a battery; Powers automatically with the movement of your arm Mineral crystal Case diameter: 41.3 mm Stainless-steel case; Black dial Water resistant to 99 feet (30 M): withstands rain and splashes of water, but not showering or submersion