Invicta Men's Sapphire Automatic Diver 7046 Imported Case Size : 40 mm Quality Japanese-automatic movement; functions without a battery; powers automatically with the movement of your arm Scratch-resistant sapphire crystal; brushed and polished two tone stainless steel case and bracelet Automatic; day and date function Blue dial with white hour markers; luminous hands; blue bezel; screw down crown; exhibition base back Water resistant to 660 feet (200 M): suitable for recreational scuba diving