![Omega Cal. 26.5 circa 1935 | rare mid-sized steel three-tone dial manually wound vintage wristwatch - Black Bough | Ludlow Omega Cal. 26.5 circa 1935 | rare mid-sized steel three-tone dial manually wound vintage wristwatch - Black Bough | Ludlow](https://www.blackbough.co.uk/wp-content/uploads/omega-cal-26-5-circa-1935-steel-three-tone-dial-wzott-v01.jpg)
Omega Cal. 26.5 circa 1935 | rare mid-sized steel three-tone dial manually wound vintage wristwatch - Black Bough | Ludlow
![OMEGA type Calatrava year 1935 - original sector dial with small seconds - staybrite steel case and fixed lugs - La Casa dell'Orologio OMEGA type Calatrava year 1935 - original sector dial with small seconds - staybrite steel case and fixed lugs - La Casa dell'Orologio](https://www.lacasadellorologio.it/wp-content/uploads/2023/06/DSC_1709.jpg)
OMEGA type Calatrava year 1935 - original sector dial with small seconds - staybrite steel case and fixed lugs - La Casa dell'Orologio
![Omega Cal. 26.5 SOB circa 1935-1940 | steel mid-sized manually wound vintage wristwatch - Black Bough | Ludlow Omega Cal. 26.5 SOB circa 1935-1940 | steel mid-sized manually wound vintage wristwatch - Black Bough | Ludlow](https://www.blackbough.co.uk/wp-content/uploads/omega-cal-26-5-sob-circa-1940-wzosm.jpg)