Invicta Men's Bolt 15787 Round watch with 18k yellow gold ion-plated case featuring silver-tone wire trim and two-tone face with date window at 4:00 and 60-second, 30-minute, and day of the week sub-dials 50 mm stainless steel case with synthetic-sapphire dial window Swiss quartz movement with analog display Silicone band with rope-textured stripe and 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