Radio synchronised mechanical watch

摘要

The watch has a radio signal receiver and synchronisation unit which are only switched on for the synchronisation, using a sunk-type switch. A button is provided for winding up the clock spring. The electrical power, e.g. from the battery receiving solar energy needed for the receiver of the radio signal and the synchronising unit can also be produced directly before the synchronising operation, from the mechanical energy. After the synchronisation the remaining electric power is dissipated, by short circuit.