Omega, Cal. 26.5, 37 mm diameter size, Calatrava-style bezel, two-tone silver dial with roman numeral indexes, circa 1930s.

The Calatrava style 37mm oversized case is very rare among the Cal.26.5 models, which are often seen with small case sizes around 30mm. The dial is a silver two-tone Roman dial with a wonderful design that is unique to this era, and the large, sharp leaf hands made of blued steel are an excellent example of the era. In recent years, big cases with a taste unique to the 1930s, such as Omega and Longines, have been attracting attention and gaining recognition.