Invicta Men's 18023SYB Pro Diver Stainless Steel Watch with Black Band Round stainless steel watch with numbered bezel featuring silver-tone textured dial with luminous hour markers and hands 52 mm stainless steel case with synthetic-sapphire dial window Japanese quartz movement with analog display Silicone band with buckle closure Water resistant to 100 m (330 ft): In general, suitable for swimming and snorkeling, but not scuba diving