TAG Heuer Men's WJF2010.BA0592 Link Automatic Day-Date Watch Quality Swiss Automatic movement; Functions without a battery; Powers automatically with the movement of your arm Scratch-resistant Sapphire Crystal Black Dial with Day at the 12 o'clock Position and Date at the 6 o'clock Position Luminous Hands Water resistant to 660 feet (200 M): suitable for recreational scuba diving