TAG Heuer Men's CV2011.BA0786 Carrera Automatic Chronograph Watch Quality Swiss Automatic Movement; Functions without a battery; Powers automatically with the movement of your arm Scratch-resistant sapphire crystal Case diameter: 41 mm Stainless-steel case; Silver dial; Luminous hands and hour markers; Date function; Chronograph functions; Tachymeter function Water resistant to 165 feet (50 M): suitable for swimming and showering