TAG Heuer Men's CJF2150.BB0595 Link Automatic Chronograph 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 with solid 18kt yellow gold bezel; Silver dial; Luminous hands and markers; Date function; Chronograph functions Water resistant to 660 feet (200 M): suitable for recreational scuba diving