Hamilton Valiant Auto Men's watch #H39515134 Imported Self-winding automatic movement - an Eco-friendly choice for discerning customer. Powered by everyday movement of your arm Automatic self-winding movement with analog display and synthetic sapphire dial window Water-resistant Silver-tone metal band and stainless steel case with black dial Water resistant to 5 ATM / 50 meters / 165 feet : suitable for use around household sinks playing sports and swimming in shallow water but not bathing snorkeling or scuba diving