Omega Planet Ocean 600 M Omega Co-axial Master Chronometer Chronograph Watch - 45.5 mm Steel Case - Unidirectional Black Ceramic Bezel - Black Ceramic Dial - 215.30.46.51.01.002 mm self-winding chronometer Omega 2627 movement

self-winding chronometer Omega 2627 movement with Co-Axial Escapement

Water resistant to 30 m

Water resistant to 100 meters

Caliber Omega 9300 self winding movement with column wheel mechanism and co-axial escapement

The Black Bay Chrono is the first chronograph in the TUDOR family

Omega Planet Ocean 600 M Omega Co-axial Master Chronometer Chronograph Watch - 45.5 mm Steel Case - Unidirectional Black Ceramic Bezel - Black Ceramic Dial - 215.30.46.51.01.002 mm self-winding chronometer Omega 2627 movement45. 5 mm stainless steel case with anti magnetic properties and helium escape valve, transparent back, screw in crown, unidirectional rotating black ceramic bezel with orange rubber and Liquidmetal diving scale, scratch resistant sapphire crystal, black ceramic dial with Arabic numerals and a date window at the 6 oclock position, small seconds sub dial, as well as 60 minute and 12 hour counters on one dial, caliber Omega 9900 self winding Co Axial