U-Boat Men's 7224 Chimera 46 Side View Analog Display Swiss Automatic Black Watch Stainless steel 46mm diameter which displays hours, minutes and seconds, date at 3o'clock, 44 hours of power reserve Fume sapphire glass on the front and flat crystal on the back of the timepiece, double gasket sealing Steel case with black screws, rhodium plate, automatic mechanic chronograph Powered by 25 jewels with 28,800 vibrations per hour, 4hz; handmade and hand finished black alligator strap with a tongue steel buckle Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving