Seiko Men's SNZD15 Seiko 5 Automatic Black Dial Black IP Stainless-Steel Watch Automatic movement; functions without a battery; powers automatically with the movement of your arm Functions without a battery; powers automatically with the movement of your arms Strong Hardlex crystal protects case from scratches and scrapes Stainless steel case; black dial; day-and-date functions Water resistant to 99 feet (30 M): withstands rain and splashes of water, but not showering or submersion