Omega Speedmaster Ref. 310.30.42.500.40.01

Omega Speedmaster Professional Moonwatch

The Omega Speedmaster Professional Moonwatch Ref. 310.30.42.50.01.001 stands as one of the most historically significant wristwatches ever produced. Faithful to the model worn during all six lunar landings, this modern Moonwatch preserves the iconic design language that earned its place in space exploration, while incorporating meaningful mechanical and material upgrades for contemporary wear. Its 42 mm stainless-steel case features asymmetrical twisted lugs, polished bevels, and a classic black tachymeter bezel with the coveted “dot over 90” detail—an unmistakable hallmark of the Speedmaster lineage.

The stepped black dial is executed with exceptional clarity and restraint, featuring applied Omega logo, crisp white printing, and recessed chronograph subdials at 3, 6, and 9 o’clock. Broad baton hands and hour markers are filled with Super-LumiNova for excellent legibility, while the central chronograph seconds hand is accented with a subtle red tip, reinforcing the instrument-grade character of the watch. Hesalite crystal, chosen for its historical accuracy and distortion-free warmth, completes the authentic Moonwatch aesthetic.

At its heart is the manually wound Omega Co-Axial Master Chronometer Calibre 3861, visible through the solid engraved caseback bearing the “Flight-Qualified by NASA” and “First Watch Worn on the Moon” inscriptions. This movement represents a significant technical evolution, offering a co-axial escapement, hacking seconds, a 50-hour power reserve, and resistance to magnetic fields up to 15,000 gauss. METAS-certified for precision and reliability, the calibre blends traditional hand-wound chronograph operation with modern chronometric performance.

Paired with Omega’s stainless-steel bracelet featuring a refined taper and secure folding clasp, the Speedmaster Professional Moonwatch remains remarkably wearable despite its tool-watch origins. Equally at home as a daily companion or a cornerstone of a serious collection, the Ref. 310.30.42.50.01.001 is not merely a watch—it is a living piece of horological and human history. Timeless, purposeful, and universally respected, the Moonwatch continues to define what a true chronograph should be.