Girard-Perregaux “Chronomètres à quartz”

European Watch Clock and Jewellery Fair 1981 BF 306
Girard-Perregaux’s new line of officially certified quartz chronometers now come in three sizes. With a strong trend to smaller men’s watches, the intermediate model is proving particularly successful. With calendar, centre seconds, water-resistant cases in steel and 14K gold and sapphire glasses. (GIRARD PERREGAUX “Quartz Chronometers”)