Abstract: An electro-mechanical watch for advancing the uncorrected watch indicating members to their correct time indicating positions, after a correction period during which one of the indicating members is adjusted and the advancement of the uncorrected members is interrupted. In regular operation, a pulsed signal at a normal frequency from a watch frequency divider drives a stepping motor to advance the indicating members. At the beginning of the correction period, the pulsed signal is switched from the stepping motor to a pulse counter which counts the pulses occurring during the correction period. After the correction period, the pulsed signal is switched back to the stepping motor and a number of signal pulses at a higher than normal frequency, equal to the count of the pulse counter are applied to the stepping motor to advance rapidly the uncorrected indicating members to their correct time indicating positions.

Abstract: An apparatus for advancing a date indicator of an electromechanical calendar watch. An hour indicator is driven through two normal operating revolutions of twelve hours each while keeping the date indicator fixed. The hour indicator then is driven through at least one more revolution at a speed much greater than the two normal operating revolutions to advance quickly the date indicator one day through a gearing connecting the hour indicator to the date indicator.

Abstract: A device for automatically correcting the date indicator of an electro-mechanical timepiece to the first date of the next month at the end of each month. A pulse driven motor advances the date indicator one date in response to a plurality of pulsed drive signals with the motor advancing one step for each drive signal pulse, and at a speed corresponding to the drive signal frequency. A fixed number of drive signal pulses are applied to the motor each month to advance the date indicator through the dates of each month to the first date of the next month. A predetermined number of the drive signal pulses, corresponding to the number of dates of each month, are applied to the motor at a normal advance frequency normally to advance the date indicator.

Abstract: A capacitive adjusting device for a quartz crystal oscillator utilizing one of the metallization provided on the quartz crystal as a common electrode for a plurality of capacitors, the second electrodes of which are provided as metallized strips on a portion of a ceramic base member forming part of the casing containing the quartz crystal.