1930 - 1938
F.W.S 1942 page 18
48 x 62 mm
Junghans catalog 1931 text:
Junghans "Master" Watch, thin model, '
Second-adjustment. The watch to be set exactly to the second
Bridge movemcnt, thin model, cut compensation balance, Breguet steel hair spring, regulating spring, lever escapement with visible jewels, steel escape wheel plain polished, double safety roller, gilt plates and bridges. Adjusted in different temperatures, hanging and lying, down to a few seconds