Cortebert - Electronic 350

Swiss Watch Fair 1969 BP 28
A strong advance can be observed in the field of horological electronics. Here is one of the new models with balance-wheel and electronic circuit. All-steel or goldplate with steel back waterresistant case (also made with transparent plexiglass back to give a view of the movement). Choice of dials, blue model shown, silvered hour-markers Calendar. (CORTEBERT - Electronic 350")