A winding mechanism is for a timepiece including at least one first and one second power accumulators. The winding mechanism includes a winding stem, a winding pinion and a sliding pinion having face gear toothings, facing one another. The winding stem and the sliding pinion occupy the same axial winding position. The winding mechanism includes a coupling device which cooperates with the winding pinion and is provided to occupy a first coupling position for coupling the winding pinion and the first power accumulator when the winding stem is turned in one direction, the second power accumulator being uncoupled, without any contact with the coupling device, and a second coupling position for coupling the winding pinion and the second power accumulator when the winding stem is turned in the other direction, the first power accumulator being uncoupled, without any contact with the coupling device.

A timepiece having multiple springs while reducing the plane size of the movement. The timepiece has a first barrel including a first barrel arbor, a first spring, and a first barrel wheel; and a second barrel including a second barrel arbor, a second spring, and a second barrel wheel, disposed to a position not superimposed with the first barrel in a plan view from the axial direction of the first barrel arbor and the second barrel arbor, and having rotation of the first barrel transferred thereto; a planetary gear mechanism having a display pivot that turns in a first direction when rotation of the first ratchet wheel that turns in unison with the first barrel arbor is transferred, and turns in a second direction opposite the first direction when rotation of the second barrel wheel is transferred, and is disposed to a position not superimposed with the first barrel and the second barrel in plan view; and a power reserve wheel train including multiple wheels that transfer rotation of the first ratchet wheel to the planetary gear mechanism, and having one of the multiple wheels axially supported by the second barrel arbor.

A mechanism for winding a timepiece including at least first and second energy accumulators, the winding mechanism including a winding stem, a winding pinion and a sliding pinion having face gear toothings, arranged to allow the winding pinion to be driven by the sliding pinion in both directions of rotation of the winding stem, the winding stem and the sliding pinion occupying the same axial winding position. The winding stem is housed inside a bottom plate so that the winding pinion is operational on either side of the winding stem with respect to the bottom plate and the winding mechanism includes first and second coupling/uncoupling devices arranged on either side of the winding stem with respect to the bottom plate.

A mechanism for winding a timepiece including at least first and second energy accumulators, the winding mechanism including a winding stem, a winding pinion and a sliding pinion having face gear toothings, arranged to allow the winding pinion to be driven by the sliding pinion in both directions of rotation of the winding stem, the winding stem and the sliding pinion occupying the same axial winding position. The winding stem is housed inside a bottom plate so that the winding pinion is operational on either side of the winding stem with respect to the bottom plate and the winding mechanism includes first and second coupling/uncoupling devices arranged on either side of the winding stem with respect to the bottom plate.

Indexing device (100) for a pull-out piece (10) for a timepiece, including an indexing member (4), and an indexing element (3) which has at least two sets of flanks (31a, 31b, 31c; 32a, 32b) for defining indexing positions of pull-out piece (10) and which is mounted on the indexing member (4), the indexing member (4) and the indexing element (3) being arranged or configured so as to define at least two positions, in particular at least two fixing positions, of the indexing element (3) on the indexing member (4).

Indexing device (100) for a pull-out piece (10) for a timepiece, including an indexing member (4), and an indexing element (3) which has at least two sets of flanks (31a, 31b, 31c; 32a, 32b) for defining indexing positions of pull-out piece (10) and which is mounted on the indexing member (4), the indexing member (4) and the indexing element (3) being arranged or configured so as to define at least two positions, in particular at least two fixing positions, of the indexing element (3) on the indexing member (4).

A timepiece includes a case including a protrusion protruding inward from an inner wall, a crown including a shaft passing through the side surface of the case, a head provided at one end of the shaft, and a drive wheel provided at the other end opposite from the one end of the shaft, an internal rotary ring provided in a position where the internal rotary ring overlaps with the protrusion in the plan view and having teeth that engage with the drive wheel, and elastic members disposed between the protrusion and the internal rotary ring and each including a convex section that engages with the teeth.

The mechanical timepiece movement with running reserve indication comprises at least one barrel system with a winding output connected to a winding wheel of a differential gear, and with an unwinding output connected to an unwinding wheel of the differential gear. It includes a locking wheel set driven in rotation by an intermediate wheel of the differential gear. The locking wheel set is connected to a running reserve indicator to display the running reserve. The locking wheel set includes a locking element for coming into contact with the unwinding wheel of the differential gear when the running reserve is at zero, in order to lock the timepiece movement.

A mechanism for selecting and actuating functions of a timepiece movement comprise a winding stem (1) terminated at one of the ends thereof by a crown. The winding stem (1) being displaceable in rotation and in axial translation, said winding stem (1) being arranged to occupy three distinct axial positions, namely a first winding position, a second position of selecting one among n functions in response to a rotation of the winding stem (1) about the axis thereof, and a third position of actuating a function kinematically linked to the winding crown. The mechanism further comprises a cam wheel (7) which, when the selection mechanism is in the second position thereof, is kinematically linked to the winding stem (1), said cam wheel (7) including a guide member (8) on which n rest positions are arranged, each corresponding to a function.

The invention relates to a setting mechanism for a timepiece movement, including a setting gear train, a winder rod adapted to be moved from a first axial position termed a running position to a second axial position termed a setting position, a sliding pinion adapted to be moved from a first axial position in which the sliding pinion is disengaged from the setting gear train to a second axial position in which the sliding pinion meshes with the setting gear train, and a lever interengaged with the sliding pinion and adapted to pivot, when the winding rod is moved from a running position to a setting position and vice versa, in order to move the sliding pinion from the first axial position to the second and vice versa. The setting mechanism further includes, according to the invention, a device for immobilizing the setting gear train. This immobilizing device includes first and second immobilizing arms and an immobilizing wheel interengaged with the setting gear train. The first and second immobilizing arms are adapted, on the one hand, to the interengaged with the immobilizing wheel in a configuration termed locked in which the setting gear train is immobilized and, on the other hand, to be disengaged from the immobilizing wheel in a configuration termed unlocked in which the sliding pinion is free from meshing with the setting gear train. The immobilizing device includes to this end a locking/unlocking lever interengaged with the sliding pinion and adapted to cooperate with the first and second immobilizing arms in order to pass from the locked configuration to the unlocked configuration and vice versa when the winding rod is moved from a running position to a setting position and vice versa.