MeisterSinger men&acute;s watch automatic-self-wind Salthora Meta SAM907 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 sapphire crystal dial window Date calendar water-resistant Black calfskin 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