TAG Heuer Men's CV2010.BA0786 Carrera Automatic Chronograph Watch Quality Swiss Automatic Movement; Functions without a battery; Powers automatically with the movement of your arm Anti-reflective scratch-resistant sapphire crystal Case diameter: 41 mm Stainless-steel case; Black dial; Luminous hands; Date function; Chronograph functions Water resistant to 165 feet (50 M): suitable for swimming and showering