Omega Seamaster Diver 300M Co-Axial Master Chronometer Watch - 42 mm Steel Case - Unidirectional Bezel - Black Ceramic Dial - 210.30.42.20.01.001 Royal Oak Chronograph one black satin strap and

one black satin strap and one pearl gray satin strap

sand-blasted black dial with rhodium plated hands coated with vintage Super-LumiNova

approximately 50 hours of power reserve

scratch-resistant sapphire crystal

caliber 3603 self-winding movement with chronometer and 2nd time zone through 24 hour hand

Omega Seamaster Diver 300M Co-Axial Master Chronometer Watch - 42 mm Steel Case - Unidirectional Bezel - Black Ceramic Dial - 210.30.42.20.01.001 Royal Oak Chronograph one black satin strap and42 mm stainless steel case with helium escape valve, transparent back, unidirectional rotating bezel with a white enamel diving scale, domed scratch resistant sapphire crystal anti reflective treatment on both sides, polished black ceramic dial with laser engraved waves and a date window at 6 oclock, Caliber Omega 8800 self winding movement with co axial escapement, chronometer, date, approximately 55 hours of power reserve, stainless steel bracelet.