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 Grigio caliber 9422 MC automatic movement

caliber 9422 MC automatic movement with perpetual calendar complication

grey and white polyamide NATO strap

green micro-perforated leather strap

stainless steel strap

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 Grigio caliber 9422 MC automatic 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.