Invicta Men's Russian Diver GMT 7183 Precise and high-quality Swiss-quartz movement Durable mineral crystal; black Ionic-Plated stainless steel case; black leather strap Chronograph functions with 60 Second, 30 Minute and 1/10 of a Second Sub-dials; date function; get 24-hour hand function Luminous hands and hour Markers; black dial; crown with Screw Down Protective Cap on Chain Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving