Stuhrling Original Men's Automatic Stainless Steel Sport Watch, Color:Silver-Toned (Model: 79AA.33111) Quality automatic movement; functions without a battery; powers automatically with the movement of your arm Reliable automatic-self-wind movement 22 jewels Features a rotating bezel and date window at the three o'clock position, built on a stainless steel bracelet Krysterna scratch resistant crystal Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving