Original OMEGA Speedmaster Professional “Moonwatch” Ref. 3590.50, one of the most iconic timepieces from OMEGA, manufactured in 1991. As part of all six moon missions, the legendary Speedmaster embodies the brand's adventurous pioneer spirit. At the heart of this chronograph is the OMEGA Caliber 861 with 18 jewels and a high-quality gold-plated finish, the legendary manual winding movement that was worn on the moon. It runs flawlessly, and all functions work as expected. This model features a black dial adorned with a small seconds sub-dial, a 30-minute counter, and a 12-hour counter, as well as a central chronograph hand. The white indices and central hour and minute hands. The black bezel with its tachymeter scale is mounted on a 42 mm stainless steel case excluding crown, with a lug-to-lug distance of 48 mm and is consistently in very good condition, with minor surface scratches expected on a watch of this age. The case back is engraved with "Flight-qualified by NASA for all manned space missions", "The first watch worn on the moon". The winding crown is completely original and correctly signed with the famous "Omega" logo. The watch has been serviced by our watchmaker, which included cleaning and oiling of the movement as well as adjustment of the time. Case number: 48xxxxxx Dimensions: 42 mm stainless steel case excluding crown; Dial: Original black "Long S&R" dial; Bracelet: The watch is presented on the original “Omega” stainless steel bracelet, measuring approximately 21 cm including the case, with bracelet reference 1479 and signed "Speedmaster", with the "Omega" logo. Box: Yes Papers: Yes