Omega Speedmaster Moonphase Master Chronometer Chronograph Watch - 44.25 mm Yellow Gold Case - Silvery Diamond Dial - Black Leather Strap - 304.63.44.52.02.001 ceramic This more formal iteration remains

This more formal iteration remains fashionable and sporty with design features such as a black dial with a beige aged leather strap

blue dial with roman numeral hour markers and polished cobachons

circular-grained external zone

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

Calibre Omega 8910 manual-winding co-axial master chronometer movement with date

Omega Speedmaster Moonphase Master Chronometer Chronograph Watch - 44.25 mm Yellow Gold Case - Silvery Diamond Dial - Black Leather Strap - 304.63.44.52.02.001 ceramic This more formal iteration remains44. 25 mm 18K yellow gold case with anti magnetic properties, transparent back, 18K yellow gold bezel with black ceramic ring and Ceragold tachymeter scale, scratch resistant sapphire crystal with anti reflective treatment on both sides, opaline silvery dial with diamond polished 18K yellow gold indexes and hands, caliber 9905 self winding Co Axial master chronometer movement with chronograph and moonphase indication, approximately 60 hours of power