Girard-Perregaux

European Watch Clock and Jewellery Fair 1973 BF 355
This new Girard- Perregaux model is equipped with a movement of proven quality and tens of thousands of units have already been produced. Quartz frequency is 32,768 Hertz. The water-resistant case is in 18 carat yellow gold. (At the Neuchâtel Observatory’s 1972 Chronometer Tests, 4 out of 5 batches of 16 watches apiece, chosen at random from a series’ of 1800 units, swept the first four places after 58 days of static and dynamic testing.) (GIRARD- PERREGAUX)