Omega Seamaster Planet Ocean 600M Omega Co-Axial Master Chronometer Chronograph - 45.5 mm Steel Case - Ceramised Titanium Dial - 215.30.46.51.99.001 Portuguese self-winding chronometer Omega 8421 movement

self-winding chronometer Omega 8421 movement with Co-Axial Escapement and seconds

sand-blasted black dial with 18K Sedna gold hands coated with vintage Super-LumiNova

black ceramic bezel with tachymeter scale in white enamel

7 mm steel case

bronze dial with a date window at 3 o’clock

Omega Seamaster Planet Ocean 600M Omega Co-Axial Master Chronometer Chronograph - 45.5 mm Steel Case - Ceramised Titanium Dial - 215.30.46.51.99.001 Portuguese self-winding chronometer Omega 8421 movement45. 5 mm steel case with anti magnetic protection and helium escape valve, transparent back, unidirectional bezel with diving scale filled with liquid ceramic and Super LumiNova, domed scratch resistant sapphire crystal with anti reflective treatment on both sides, ceramised titanium dial with a small seconds counter and a date window, Calibre Omega 9900 self winding co axial master chronometer movement with chronograph, small seconds, and date,