OMEGA Seamaster self-winding automatic master chronometer diver 210.30.42.20.03.001 men's watch. Round brushed with polished stainless steel case and bracelet. Blue ceramic dial with a laser-engraved wave pattern. White Super-LumiNova filed luminescent index and dot hour markers and skeleton hands. Unidirectional rotating blue ceramic bezel with a white enamel diving scale. Date feature located at 6 o'clock. Powered by the Omega caliber 8800 self-winding automatic master chronometer movement with an anti-magnetic feature and co-axial escapement which boasts a 55 hour power reserve. Total vibrations per hour: 25,200. Total jewels: 35. Helium escape valve located on the outer edge of the case at 10 o'clock. Domed scratch resistant sapphire crystal with anti-reflective treatment on both sides. Sapphire crystal exhibition case back. Screw down crown. Stainless steel deployment buckle. Water-resistant to 300 meters / 1000 feet. Functions: hours, minutes, seconds, date. Diving watch style. Swiss made.