PROBLEM TO BE SOLVED: To provide a circuit component for reducing influence of a magnetic field locally without spoiling the appearance and without substantially changing a conventional design.;SOLUTION: A circuit component 1 includes a current supply coil 2, a magnetic field reducing coil 3, and a current adjuster 4, generates a magnetic field in a direction opposite to that of a magnetic field 61 by utilizing electromagnetic induction by the magnetic field reducing coil 3 relative to a change in the magnetic field 61, and reduces size of a magnetic field in an area surrounded by the magnetic field reducing coil 3. An influence of a magnetic field of a hairspring or the like can be reduced.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2019,JPO&INPIT
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