Omega Speedmaster Racing Co-Axial Master Chronograph Watch - 44.25 mm Steel Case - Black Ceramic Bezel - Matt Black Dial - 329.30.44.51.01.002 Reserve 43 mm steel case with

43 mm steel case with anti-magnetic protection

caliber 8923 self-winding Co-Axial master chronometer movement with date and annual calendar functions

38 mm brushed stainless steel and 18K red gold case

Rolex calibre 3235 perpetual self-winding movement

bezel engraved with Roman numerals

Omega Speedmaster Racing Co-Axial Master Chronograph Watch - 44.25 mm Steel Case - Black Ceramic Bezel - Matt Black Dial - 329.30.44.51.01.002 Reserve 43 mm steel case with44. 25 mm stainless steel case with antimagnetic design, transparent back, black ceramic bezel with tachymeter scale in orange wording and liquidmetal scale, domed scratch resistant sapphire crystal with anti reflective treatment on both sides, matt black dial with racing style minute track, caliber 9900 self winding Co Axial master chronometer movement with chronograph and date functions, approximately 60 hours of power reserve, stainless steel