Omega Seamaster Diver 300M Co-Axial Master Chronometer Watch - 42 mm Steel And Yellow Gold Case - Unidirectional Bezel - Black Ceramic Dial - 210.20.42.20.01.002 Years caliber 52850 pellaton automatic winding

caliber 52850 pellaton automatic winding movement with power reserve display

brown inner bezel

ruthenium-toned dial with Grande Tapisserie” pattern

9 mm thick

black supernova dial with diamond hour markers

Omega Seamaster Diver 300M Co-Axial Master Chronometer Watch - 42 mm Steel And Yellow Gold Case - Unidirectional Bezel - Black Ceramic Dial - 210.20.42.20.01.002 Years caliber 52850 pellaton automatic winding42 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 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