Swiss Legend Men's 90020-77 Commander Automatic Watchwith Winder Quality Swiss automatic movement; functions without a battery; powers automatically with the movement of your arm Scratch-resistant Sapphire crystal; brushed and Polished stainless steel case and band Date function with Sweeping Second Hand Luminous hands; yellow dial; screw down crown; exhibition case back; watch winder included Water resistant to 660 feet (200 M): suitable for recreational scuba diving