European Watch Clock and Jewellery Fair 1975 BF 303
A model from the Ronda-Quartz collection, powered by a silver oxide battery with an 18-month life. Quartz vibration rate : 32,768 Hertz, C-Mos integrated circuit, stepping motor and day-date calendar. The movement’s modular construction allows easy standard replacement of its various components. (RONDA-QUARTZ)