TAG Heuer Men's WAF2010.BA0818 Aquaracer 2000 Calibre 5 Automatic Watch Quality Swiss Automatic Movement; Functions without a battery; Powers automatically with the movement of your arm Scratch-resistant sapphire crystal Case diameter: 42.5 mm Stainless-steel case; Black dial; Luminous hands and hour markers; Unidirectional bezel; Diving extension system; Day-date function Water resistant to 990 feet (300 M):suitable for scuba diving to a depth of 30 meters for up to 2 hours