1940s Longines "Big Calatrava" Stainless Steel 37mm Cal.12.68n

Longines, Calatrava-style bezel, silver roulette dial with roman indexes, a very rare 37mm size, circa 1940s. A 2nd model with a big calatrava case with a flat bezel, which was very rare in the early days of the brand with Cal. 12.68N. It has a flat silver two-tone dial with rouletted Roman numerals. The dial is flat and silver two-tone dial with rouletted Roman numerals, which retains the taste of the good old art deco style. The early Calatrava design and flat dial models are very rare, as the later models had a smooth bezel and one tone design with a bombay.