Omega Speedmaster Professional Moonwatch Moonphase 304.33.44.52.03.001, 30433445203001, stainless steel case on an alligator strap with a stainless steel deployant buckle, automatic Omega caliber 9904 movement, 60-hour power reserve, chronograph with date and moonphase display, blue dial with luminous hands and indexes, sapphire crystal, display back, water resistant to 100 meters, size: 44.25mm, thickness: 17mm. Like New with Omega box and papers.