Torgoen Swiss Men's T16301 Aviation Chronograph Black Dial Polyurethane Strap Watch Precise Swiss-quartz movement Hardened mineral crystal Chronograph functions with 30-minute, 60-second, and 1/10th-second sub-dials; date function; luminescence indexes Black ion-plated stainless-steel case; screwed down case-back; water-resistant polyurethane strap Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving