Invicta Men&#39;s &#39;Corduba&#39; Quartz Gunmetal-Plated-Stainless-Steel and Techno-Material Diving Watch, Color Quality Japanese-quartz movement Durable mineral crystal Case diameter: 53 mm Gun-metal-plated-Stainless-steel case; black dial; date function Water resistant to 660 feet (200 M): suitable for recreational scuba diving