1930s Oriental 40mm Combination Flexible Chronograph Sector Dial

ORIENTAL" from the 1930's, a very rare 40mm combination step & flexible chronograph with the popular sector dial. The combination 40mm flexible case, which is rarely seen in the vintage era, is an outstanding example. The dial design is also superb, with the rare and popular sector dial printed with telemeter, minute and second track, and snail tachymeter, which is one of the more rare and intricate designs among chronographs of the 30s. It is powered by a large Landeron Haan movement from Landeron, a company that also supplied machinery to Breitling and Heuer in the same decade.