Longines - LCD

European Watch Clock and Jewellery Fair 1975 BE 319
A new 100 «/o electronic (or solid-state) model from Longines Quartz frequency is 32,768 Hertz. Permanent LCD (liquid crystal) readout of hour and minute. A pushpiece-operated display screen lighting system enables the wearer to read the time in total darkness. (LONGINES - LCD)