Pulsar Men's PBK003 Alarm Chronograph Watch Quality Japanese-Quartz movement Strong mineral crystal protects watch from excessive wear on dial Case diameter: 38.5 mm Stainless-steel-with-ticn-finish case; black dial; day-date-and-month functions; chronograph functions Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving