Omega 329.32.44.51.01.001 Speedmaster Racing Co-Axial Master Chronometer Chronograph 32930445104001, stainless steel on a strap with a stainless steel deployant clasp, automatic Omega Co-Axial Caliber 9900, black dial with applied luminous hour markers and racing-style minute/seconds track with orange accent, 12-hour chronograph, date at 6 o’clock, sapphire crystal, display back, water resistant to 50 meters, diameter: 44.25mm, thickness: 16mm. Like New with Omega box and papers.