A calibre that precede the infamous 321 chronograph, the cal. 33.3 is its father that marks an extremely important part of Omega’s heritage. Derived from a Lemania movement in 1933, these movements were seen in Omegas and Tissots from the 30s as the two manufacturer merged. Operating at 18,000 vibrations per hour with 17 jewels. It includes a column-wheel chronograph mechanism, which was a hallmark of high-quality chronographs of that period.

The present Omega is a rare two-register, monopusher featuring an attractive multi-scale white enamel dial. Cased in a 37mm diameter staybrite steel, the snail-shaped scales are identified by its color-coded: Blue & Green (Tachymeter), Red (Telemeter). A beautiful example from a bygone era, this is a wonderful example to be added to vintage chronograph connoisseurs.