Invicta Men's 'Pro Diver' Quartz Stainless Steel Casual Watch (Model: 21850) Round watch with black dial featuring logoed bezel, luminous indices, printed second track, and open lugs 45 mm stainless steel case with synthetic sapphire dial window Japanese quartz movement with analog display Black polyurethane band with buckle closure Water resistant to 100 m (330 ft): In general, suitable for swimming and snorkeling, but not scuba diving