Watch movement comprising a device for equalizing a motor torque.

摘要

The watch movement comprises a mechanism and a barrel (111) arranged to drive the mechanism. The barrel comprises a drum (131) and a mainspring for exerting a driving torque which is variable according to the degree of winding of the mainspring (133). The watch movement further comprises an equalizing device (203, 207) kinematically connected to the barrel so as to be driven by it and to be able to exert an auxiliary torque which also varies according to the degree of winding of the motor spring. way to oppose the variations of the engine torque. The equalizing device comprises a first magnetic element (203) and a second magnetic element (207) which are arranged in such a way that, when the equalizing device is driven by the barrel,