A timepiece movement including, fixed on a same plate, a gear train subjected to a torque in a timepiece movement, and an energy storage to deliver a torque to the gear train for actuating a mechanical mechanism synchronizing rotational speed of the gear train with a resonator having a given natural resonant frequency included in the timepiece movement. The resonator is an annular resonator including a ring disposed around an axis. The ring is arranged to be periodically deformed under an action induced by motion of a drive member, included in this mechanism, and the drive member is driven in a pivoting motion, directly or indirectly, by the gear train.

A timepiece movement including, fixed on a same plate, a gear train subjected to a torque in a timepiece movement, and an energy storage to deliver a torque to the gear train for actuating a mechanical mechanism synchronizing rotational speed of the gear train with a resonator having a given natural resonant frequency included in the timepiece movement. The resonator is an annular resonator including a ring disposed around an axis. The ring is arranged to be periodically deformed under an action induced by motion of a drive member, included in this mechanism, and the drive member is driven in a pivoting motion, directly or indirectly, by the gear train.

The mechanical timepiece movement includes an escapement having a pallet-lever arranged to move alternately into abutment with two banking elements in locking periods. The pallet-lever carries at least a first permanent magnet and the timepiece movement further includes a first element and a second element of high magnetic permeability and a second magnet and a third magnet respectively integral with first and second elements of high magnetic permeability and each arranged on an opposite side to a first magnet relative to the respective elements of high magnetic permeability. This magnetic system generates, in a first part of a first half vibration of any vibration of the pallet-lever, an overall force of magnetic attraction, defining a magnetic draw additional to the mechanical draw generated by the escape wheel, and, in a second part of this first half vibration, an overall force of magnetic repulsion.

An escapement mechanism including a stop member including a first actuator cooperating with a resonator and a second actuator cooperating with an escape wheel set subjected to a drive torque lower than a nominal torque. The first actuator includes a magnetically or electrically charged pole piece, the resonator includes a magnetically or electrically charged track, and the pole piece and/or the track create, in an air gap between the pole piece and the track, a magnetic or electrostatic field having an intensity ensuring relative driving of the stop member and of the resonator when the torque is lower than the nominal torque. The stop member and/or the resonator include an arresting mechanism limiting relative movement between the actuator and the resonator when the torque is greater than the nominal torque.

An escapement mechanism including a stop member including a first actuator cooperating with a resonator and a second actuator cooperating with an escape wheel set subjected to a drive torque lower than a nominal torque. The first actuator includes a magnetically or electrically charged pole piece, the resonator includes a magnetically or electrically charged track, and the pole piece and/or the track create, in an air gap between the pole piece and the track, a magnetic or electrostatic field having an intensity ensuring relative driving of the stop member and of the resonator when the torque is lower than the nominal torque. The stop member and/or the resonator include an arresting mechanism limiting relative movement between the actuator and the resonator when the torque is greater than the nominal torque.

To provide an operation stabilizing mechanism, a movement, and a mechanical timepiece allowing a reduction in size while achieving an enhancement in rate precision. An operation stabilizing mechanism includes: an outer carriage and an inner carriage provided so as to be mutually rotatable; a constant-force spring provided between the outer carriage and the inner carriage and configured to impart a rotational force to the inner carriage such that the inner carriage rotates with respect to the outer carriage; a stop wheel provided on the outer carriage; and a stopper configured to perform engaging and releasing operations on the stop wheel upon the rotation of the inner carriage, wherein the rotational axis of the outer carriage and the rotation axis of the inner carriage cross each other.

To provide an operation stabilizing mechanism, a movement, and a mechanical timepiece allowing a reduction in size while achieving an enhancement in rate precision. An operation stabilizing mechanism includes: an outer carriage and an inner carriage provided so as to be mutually rotatable; a constant-force spring provided between the outer carriage and the inner carriage and configured to impart a rotational force to the inner carriage such that the inner carriage rotates with respect to the outer carriage; a stop wheel provided on the outer carriage; and a stopper configured to perform engaging and releasing operations on the stop wheel upon the rotation of the inner carriage, wherein the rotational axis of the outer carriage and the rotation axis of the inner carriage cross each other.

A device (100) for setting the position and marking a first (1) and a second (10) timepiece component, which can be assembled together with a single degree of freedom and immobilised by the cooperation of a first screw (4) with a first tapping (12) of the second component (10) via a first notch (2) of the first component (1), and of a second screw (5) with a second tapping (13) of the second component (10) via a second notch (3) of the first component (1), the first (2) and second (3) notches defining a setting range, the second screw (5) being a cone-head screw, arranged to make an imprint on the edge of the second notch (3) under a predetermined tightening torque, in order to permanently mark the relative position of the first component (1) and of the second component (10).

A device (100) for setting the position and marking a first (1) and a second (10) timepiece component, which can be assembled together with a single degree of freedom and immobilised by the cooperation of a first screw (4) with a first tapping (12) of the second component (10) via a first notch (2) of the first component (1), and of a second screw (5) with a second tapping (13) of the second component (10) via a second notch (3) of the first component (1), the first (2) and second (3) notches defining a setting range, the second screw (5) being a cone-head screw, arranged to make an imprint on the edge of the second notch (3) under a predetermined tightening torque, in order to permanently mark the relative position of the first component (1) and of the second component (10).