Omega Seamaster Diver 300M Co-Axial Master Chronometer Watch - 42 mm Steel Case - Unidirectional Bezel - Black Ceramic Dial - 210.30.42.20.01.001 Beige caliber 8900 self-winding Co-Axial master

caliber 8900 self-winding Co-Axial master chronometer movement with date function

glareproof sapphire crystal back

Calibre Omega 8700 self-winding co-axial master chronometer movement with date

silver dial with diamond-set indexes and roman numerals at the 3-6-9 and 12 o'clock positions and date window at 3 o’clock

27 mm steel and red gold case

Omega Seamaster Diver 300M Co-Axial Master Chronometer Watch - 42 mm Steel Case - Unidirectional Bezel - Black Ceramic Dial - 210.30.42.20.01.001 Beige caliber 8900 self-winding Co-Axial master42 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.