Rip Curl Men's 'Cortez 2 XL Polyurethane' Quartz Stainless Steel Casual Watch, Color:Black (Model: A2444-BLK) 316L marine grade stainless steel case Case diameter: 46 mm Enamel filled crown Triple-sealed crown Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving