Tag Heuer Aquaracer Automatic Black Dial Two-tone Mens Watch WAK2122BB0835 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 Two tone two tone stainless steel stainless steel case with black dial Water resistant to 50 ATM / 500 meters / 1650 feet : suitable for professional marine activity serious surface water sports and skin diving