Invicta Men's 21377 Pro Diver Analog Display Quartz Silver-Tone Watch Round watch with number-marked bezel and luminous hands and markers 46 mm stainless steel case with synthetic-sapphire dial window Quartz movement with analog display Stainless steel band with fold-over clasp with safety Water resistant to 100 m (330 ft): In general, suitable for swimming and snorkeling, but not scuba diving