Manufactured in the late 1930s, Omega with Cal.26.5 — stainless steel, 37mm Big Calatrava design, featuring a rare yellow dial with applied Breguet numerals.
Among watches powered by the Cal.26.5, which are most often found in smaller cases around 30mm, this rare piece stands out for its oversized 37mm Calatrava-style case. The dial is equally remarkable: a rare yellow-tone dial with applied Breguet numerals paired with Breguet hands. The soft yellow hue of the dial and the diagonal “OMEGA” logo beautifully capture the character and charm of the era.
It is powered by the Cal.26.5SOB, a movement used in many manual-wind models before the introduction of the legendary 30mm calibers.