Ref. 3570.50.00

Speedmaster Professional Moonwatch

Omega

“Pre-Master Chrono Moonwatch”

The reference 3570.50.00 was the last generation of Speedmaster Professional to use the legendary calibre 1861, the non-Master Chronometer successor to the original calibre 321 and 861. This Hesalite-crystal variant with display caseback was produced for over 15 years and represents the most accessible modern vintage Moonwatch. It remains highly sought after as the final Moonwatch with the traditional hand-wound calibre before the transition to the 3861.