Invicta Men's 1091 Russian Diver Stainless Steel and Black Polyurethane Watch with Skeleton Window Function meets fashion in this Invicta Russian Diver's watch, which features sophisticated design details such as a black polyurethane strap with stainless steel barrel accents, a large screw-down cap, and a fascinating skeleton window. Precise mechanical hand-wind movement with analog display Protective synthetic sapphire crystal on dial window Features 60-second sub-dial, black skeleton dial and case back, screw-down protective cap on crown Water resistant to 165 feet (50 M): suitable for swimming and showering