Invicta Men's Bolt 12301 Round black watch with tonal dial featuring blue wire trim at bezel and links, luminous accents, date window at 6:00, day tracker at 12:00, and three sub-dials tracking 60-second, 30-minute, and 1/10th of a second functions 51 mm black ion-plated stainless steel case with synthetic-sapphire dial window Swiss quartz movement with analog display Polyurethane band with buckle closure Water resistant to 200 m (660 ft): In general, suitable for professional marine activity and serious surface water sports, but not scuba diving