Invicta Men's 7177 Signature Collection Pro Diver Automatic Watch Quality Japanese-automatic movement; functions without a battery; powers automatically with the movement of your arm Durable mineral crystal; brushed and polished stainless steel case and bracelet Date function Silver dial; luminous hands and hour markers; magnified date display; blue bezel; exhibition case back; screw down crown Water resistant to 660 feet (200 M): suitable for recreational scuba diving