| 摘要 |
Disclosed is a crystal controlled watch having an improved transducer for converting the electrical impulses from a crystal oscillator and divider into unidirectional stepwise rotary motion suitable for driving watch hands. The transducer comprises a lightweight coil wholly mounted in the field of a permanent magnet having a natural frequency at least approximately equal to the frequency of the divider output so that the transducer coil is slaved to the crystal. An eccentric oscillates with the coil and drives the watch train through a lever pivoted to it and engaging an index wheel with magnetic attraction.
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