Torgoen Swiss Men's T01201 Chronograph Pilot Computer Stainless Steel Watch Precise Swiss-quartz movement Hardened mineral crystal E6B Flight computer slide-rule function; chronograph functions with 30-minute, 60-second, and 1/10th-second sub-dials; date function; luminescence hands and indexes High grade stainless-steel case; screwed down stainless-steel case-back; solid links stainless-steel bracelet Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving