Construction of an analogue crystal wrist watch

Details Construction of an analogue crystal wrist watch Construction of an analogue crystal wrist watch

1978-05-19

1980-04-22

Miska, Vit W.

Horology: time measuring systems or devices

Chronological

With mechanical or electromechanical driven display

368 88, 368204, 368160, G04C 300, G04B 2702

Patent

active

041988094

ABSTRACT:
The construction of an analogue crystal wrist watch which comprises a base plate, a power source battery cell on said base plate for providing energy to the circuit of said watch, a crystal oscillating element for generating a signal upon receipt of energy, an electronic circuit for dividing the frequency of the output signal from said crystal oscillating element, a frequency division circuit included in said electronic circuit, a step motor comprising a drive coil connected to said electronic circuit, a hand indication means driven by said step motor, an external operation member for correcting said hand indication means and a reset lever interlocked with said external operation member for resetting said electronic circuit.

REFERENCES:
patent: 3604202 (1971-09-01), Besson
patent: 3676993 (1972-07-01), Bergey et al.
patent: 3691753 (1972-09-01), Kurita
patent: 3745758 (1973-07-01), Kuritz
patent: 3842585 (1974-10-01), Lupoci
patent: 3875738 (1975-04-01), Ichikawa et al.
patent: 3945190 (1976-03-01), Kimura et al.
patent: 4087957 (1978-05-01), Miyasaka et al.

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