Omega Speedmaster Professional Moonwatch Steel Watch 310.30.42.50.01.001

The Omega Speedmaster Professional Moonwatch, reference 310.30.42.50.01.001, carries forward the design that accompanied every crewed NASA lunar mission since Apollo 11, housed in a 42mm stainless steel case with the model’s signature asymmetrical lug guard protecting the chronograph pushers. The black dial features Omega’s classic three-subdial chronograph layout and a tachymeter scale on the black aluminum bezel insert. Beneath the Hesalite crystal, the manually wound Caliber 3861 drives the watch, a Co-Axial Master Chronometer movement certified by METAS for precision and magnetic resistance up to 15,000 gauss, with roughly 50 hours of power reserve. The case is fitted to Omega’s steel bracelet with a fold-over clasp, and the caseback is stamped with the Seahorse medallion and the Flight-Qualified by NASA inscription that has appeared on Speedmaster casebacks since the 1960s. Water-resistant to 50 meters, this reference remains the closest current-production link to the exact configuration worn on the Moon, and it continues to anchor Omega’s chronograph line as one of the most historically significant tool watches ever produced. This is a Pre-Owned Omega Speedmaster Professional Moonwatch Stainless Steel Watch 310.30.42.50.01.001. It comes with the manufacturer’s box and papers.