Omega Speedmaster Moonwatch Co-Axial Chronograph Watch - 44.25 mm Orange Gold Case - Tachymeter Bezel - Black Dial - Black Leather Strap - 311.63.44.51.01.001 Summer self-winding chronometer Omega 8501 movement

self-winding chronometer Omega 8501 movement with Co-Axial Escapement

Tahiti mother-of-pearl dial with a date window at 6 o’clock and 11 diamond indexes in rhodium-plated holders

blue dial with roman numeral hour indexes

caseback engraved with the Seahorse medallion

red gold dial with full or outlined butterflies

Omega Speedmaster Moonwatch Co-Axial Chronograph Watch - 44.25 mm Orange Gold Case - Tachymeter Bezel - Black Dial - Black Leather Strap - 311.63.44.51.01.001 Summer self-winding chronometer Omega 8501 movement44. 25 mm 18K orange gold case, transparent back, tachymeter bezel, scratch resistant sapphire crystal with anti reflective treatment on both sides, black dial, self winding chronometer Omega 9301 movement with Co Axial Escapement, chronograph, date, and small seconds, approximately 60 hours of power reserve, black leather strap. Water resistant to 100 m.