wherein movement is regulated by a balance

Introduced: September 1968

Last revised: January 2006

Full Title

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 balance

Classification Context

Section:: PHYSICS
Class:: HOROLOGY
Subclass:: ELECTROMECHANICAL CLOCKS OR WATCHES

1 direct subcode

Child Classifications

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G04C 3/06 using electromagnetic coupling between electric power source and balance