Seiko Men's Quartz Stainless Steel Sport Watch, Color:Silver-Toned (Model: SNAA63) Reliable Japanese-quartz movement Strong Hardlex crystal protects dial from scratches Case diameter: 40.5 mm Stainless steel case; Black dial; Date function; Chronograph functions Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving