Seiko Men's Automatic Silver-Tone-Stainless-Steel Sport Watch, Color:Silver (Model: SKX781) Imported 21-jewels automatic movement Functions without a battery; winds automatically with the movement of your arms One way rotating elapsed timing bezel; screw-down crown and case-back; strong Hardlex crystal Stainless-steel case; orange dial; day-and-date functions Water resistant to 660 feet (200 M): suitable for recreational scuba diving