Rip Curl Men's 'Tubes-Black' Quartz Stainless Steel and Silicone Sport Watch, Color:Black (Model: A2488-BLK) 316L stainless steel case that is ideal for salt water and will never rust or corrode Waterproof and depth tested up to 100 meters (330 feet) Single jewel movement Soft silicone strap Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving