Invicta Men's 6931 Pro Diver Collection Automatic 18k Gold-Plated Watch Quality 21-jewel Japanese Automatic movement; Functions without a battery; Powers automatically with the movement of your arm Durable flame-fusion crystal; Brushed 18k gold plated stainless steel case and bracelet Date function Green dial with luminous hands and hour markers; Green and red unidirectional 18k gold plated bezel; Screw-down crown; Sweeping second hand; Exhibition case back Water resistant to 990 feet (300 M):suitable for scuba diving to a depth of 30 meters for up to 2 hours