Omega Seamaster Diver 300M Co-Axial Master Chronometer Watch - 42 mm Steel And Yellow Gold Case - Unidirectional Bezel - Blue Ceramic Dial - 210.20.42.20.03.001 Concord Rolex calibre 3255 automatic movement

Rolex calibre 3255 automatic movement with centre hour

enhanced by a date window at 3 o'clock and a day display at 12 o'clock

Calibre 5134 perpetual calendar self-winding movement with week indication

calibre 3155 self-winding chronometer movement with day and date display

Omega Seamaster Diver 300M Co-Axial Master Chronometer Watch - 42 mm Steel And Yellow Gold Case - Unidirectional Bezel - Blue Ceramic Dial - 210.20.42.20.03.001 Concord Rolex calibre 3255 automatic movement42 mm stainless steel and 18K yellow gold case with helium escape valve, transparent back, unidirectional rotating bezel with a Ceragold diving scale, domed scratch resistant sapphire crystal anti reflective treatment on both sides, polished blue 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