JAEGER - LECOULTRE “Master-Quartz”

European Watch Clock and Jewellery Fair 1975 BF 3O9
This new quartz electronic model is now in quantity production. Its quartz frequency of 32,768 Hertz is divided down to 0.5 Hertz to action the stepping motor. Its electronic circuit contains 312 C-MOS components on 5 sq. millimetres. (JAEGER - LECOULTRE “Master-Quartz”)