TAG Heuer Men's WJ201A.BA0591 Link Caliber 5 Automatic Watch Quality Swiss Automatic Movement; Functions without a battery; Powers automatically with the movement of your arm Scratch-resistant sapphire crystal with anti-reflective treatment on both sides Case diameter: 42 mm Stainless-steel case; Black dial; Luminous hands and markers; Unidirectional bezel; Date function Water resistant to 660 feet (200 M): suitable for recreational scuba diving