The Omega Speedmaster Professional Moonwatch reference 310.30.42.50.01.001 is a 42mm luxury chronograph featuring an asymmetrical stainless steel case and a black step dial. This model is inspired by the 4th generation Speedmaster style worn on the moon and is equipped with a hesalite crystal and a solid caseback embossed with the Seahorse medallion. It is powered by the manual-winding Omega Co-Axial Master Chronometer Calibre 3861, which offers a 50-hour power reserve and magnetic resistance up to 15,000 gauss. The watch is presented on a fully brushed stainless steel bracelet with five arched links per row and a foldover clasp featuring a comfort adjustment system.
The watch includes several complications, most notably a central chronograph seconds hand, a 30-minute recorder at the 3 o’clock position, and a 12-hour recorder at 6 o’clock. A small seconds sub-dial is located at 9 o’clock. The anodized aluminum bezel ring features a tachymeter scale with the historic dot over 90 detail. Designed for precision, the movement is METAS-certified as a Master Chronometer, ensuring high standards of performance and anti-magnetism. It also includes a hacking seconds function for accurate time setting and is water-resistant up to 50 meters.
General reviews of the 310.30.42.50.01.001 frequently praise its successful modernization of a legendary design, particularly the inclusion of the more comfortable and aesthetically pleasing “Nixon” style bracelet. The Calibre 3861 is widely lauded for its improved accuracy and technical reliability compared to its predecessors. While the use of hesalite is often celebrated by purists for its historical authenticity and lack of reflections, critics note that it remains susceptible to scratches. Some minor criticisms are directed at the difficulty of winding the crown due to the flank protection, but the watch is overall regarded as a premier value in the luxury chronograph segment.