CH599604B5CH1600774ACH1600774ACH599604B5CH 599604 B5CH599604 B5CH 599604B5CH 1600774 ACH1600774 ACH 1600774ACH 1600774 ACH1600774 ACH 1600774ACH 599604 B5CH599604 B5CH 599604B5
Authority
CH
Switzerland
Application number
CH1600774A
Inventor
Hans-Peter Kaufmann
Original Assignee
Bulova Watch Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bulova Watch Co IncfiledCriticalBulova Watch Co Inc
Priority to CH1600774ApriorityCriticalpatent/CH599604B5/xx
Priority to CH1600774Dprioritypatent/CH1600774A4/xx
Publication of CH599604B5publicationCriticalpatent/CH599604B5/xx
G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
G04C3/08—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically
G04C3/10—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means
G04C3/101—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means constructional details
G04C3/107—Controlling frequency or amplitude of the oscillating system