Favre-Leuba - Quartz

European Watch Clock and Jewellery Fair 1973 BF 301
A new quartz electronic watch model. Its quartz, with a frequency of 32,768 Hertz, pilots a new type of stepping motor and 312 O-MOS components are contained on the 5 square millimetres of its electronic circuit. (FAVRE-LEUBA - Quartz)