Tommy Bahama RELAX Men's Quartz Stainless Steel and Polyurethane Sport Watch, Color:Black (Model: RLX1007) Quality Japanese-Quartz movement Mineral crystal Case diameter: 42.5 mm Stainless steel case; Black dial; Date function; Chronograph functions Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving