Speedmaster Moonwatch Professional

The Omega Speedmaster Moonwatch Professional reference 311.30.42.30.01.005 represents the manual-winding chronograph that carried astronauts to the Moon and remained a cornerstone of Omega's catalogue for decades. Housed in a 42 mm stainless steel case, it pairs a classic black dial with the column-wheel Calibre 1861, a movement whose lineage traces directly to the original Lemania-based ebauche. Produced from 2014 through 2021, this reference bridges the long heritage of the Speedmaster with the standards expected of a contemporary collector piece.

The Speedmaster line was introduced in 1957 as a sport and racing chronograph, but its identity was transformed when NASA selected it for all crewed space missions following rigorous qualification testing in the 1960s. The Calibre 1861 — an evolution of the Cal. 861 — has powered the Moonwatch since the early 1990s, preserving the manual-wind character that defined the original. Reference 311.30.42.30.01.005 was part of the generation produced before Omega transitioned the Moonwatch to the in-house Co-Axial Calibre 3861 in 2021, making it the last major iteration of the 1861-era Moonwatch. Collectors regard this period as the final chapter of a movement architecture that had been essentially unchanged for more than half a century.