Quiksilver Men's Quartz Stainless Steel and Silicone Sport Watch, Color:Black (Model: M168JS-BLK) Japanese 3 hand quartz analog movement Case diameter: 43mm Silicone strap Solid marine grade stainless steel case & screw down case back Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving