1930s Omega Cal.26.5 33mm Rare Dust-Proof Calatrava Design Silver Dial in Stainless Steel

Omega, Cal. 26.5 powered, dust-proof, Calatrava-style bezel, silver dial, circa late 1930s.It is equipped with the famous Cal. 26.5SOBT2 movement, which was used in many sub-seconds models in the 1930s. The Calatrava case is 33mm in size, but the bezel is thinner than usual and the dial is larger, giving it the presence of a 35mm case. The silver dial with blued steel hands is well preserved, and the rare early dustproof case has no visible scratches or dents and retains its Calatrava shape. The rare early dustproof case has no visible scratches or dents and still retains its Calatrava shape. Similar cases have been found in early 30mm calibers, but they are rare and were produced for a short time in the late 1930s and early 1940s.