Timepiece wheel with play take-up, including a toothing, each tooth of which includes first and second half-teeth each including a part of the tooth profile, and movable with respect to each other against elastic return means, the wheel including, axially stacked, a first and a second half-wheel respectively carrying the first and second half-teeth and having limited rotational mobility with respect to each other, about the axis of this toothing, and against the elastic return means, the toothing of each half-wheel overhanging the other half-wheel, each half-wheel including hollows inside each of which is movable an opposite half-tooth, between two successive half-teeth.

Timepiece wheel with play take-up, including a toothing, each tooth of which includes first and second half-teeth each including a part of the tooth profile, and movable with respect to each other against elastic return means, the wheel including, axially stacked, a first and a second half-wheel respectively carrying the first and second half-teeth and having limited rotational mobility with respect to each other, about the axis of this toothing, and against the elastic return means, the toothing of each half-wheel overhanging the other half-wheel, each half-wheel including hollows inside each of which is movable an opposite half-tooth, between two successive half-teeth.

A positioning mechanism for a toothed wheel mounted on a rotatable staff in a watch movement, the positioning mechanism including a positioning lever exhibiting a flat lateral edge configured to cooperate with at least one flat provided on the staff of the toothed wheel. The positioning lever includes a pivot arm mounted in a pivotable manner about a pivot pin provided in the watch movement, a positioning element exhibiting the flat lateral edge and mounted in an articulated manner on the pivot arm, and a mechanism adjusting and locking the position of the positioning element on the pivot arm in relation to the staff of the toothed wheel.

A positioning mechanism for a toothed wheel mounted on a rotatable staff in a watch movement, the positioning mechanism including a positioning lever exhibiting a flat lateral edge configured to cooperate with at least one flat provided on the staff of the toothed wheel. The positioning lever includes a pivot arm mounted in a pivotable manner about a pivot pin provided in the watch movement, a positioning element exhibiting the flat lateral edge and mounted in an articulated manner on the pivot arm, and a mechanism adjusting and locking the position of the positioning element on the pivot arm in relation to the staff of the toothed wheel.

Timepiece display mechanism comprising a centre pipe fixed on a plate, this centre pipe comprising a main bore or a main guide bearing surface for receiving and guiding in rotation, about a main axis, a display wheel set internal or external to the centre pipe, and this display mechanism comprises an axial stop arranged to limit to a predetermined value the axial play in the direction of the main axis between the centre pipe and the display wheel set, and which is an added axial stop which is either captively mounted between the centre tube and the display wheel set, or fixed to the display wheel set.

Watch mechanism (100) comprising an element for the display of time, first and second elements (Q, PDL) for the display of first and second pieces of watch information derived from time, the mechanism comprising: a first kinematic chain (CC1) for the simultaneous correction of time display, and the display of the first and second pieces of watch information; a second kinematic chain (CC2) for the correction of the time display independently of the display of the second piece of watch information, and a third kinematic chain (CC3) for the correction of the display of the second piece of watch information independently of the time display and the display of the first piece of watch information, the third chain comprising an the epicyclic gear train (TE) connected kinematically to the element (H) for the time display by a notched wheel (MC) comprised in the first and second kinematic chains.

Watch mechanism (100) comprising an element for the display of time, first and second elements (Q, PDL) for the display of first and second pieces of watch information derived from time, the mechanism comprising: a first kinematic chain (CC1) for the simultaneous correction of time display, and the display of the first and second pieces of watch information; a second kinematic chain (CC2) for the correction of the time display independently of the display of the second piece of watch information, and a third kinematic chain (CC3) for the correction of the display of the second piece of watch information independently of the time display and the display of the first piece of watch information, the third chain comprising an the epicyclic gear train (TE) connected kinematically to the element (H) for the time display by a notched wheel (MC) comprised in the first and second kinematic chains.

A selection and actuation device for at least a first and second function of a watch movement includes a translationally and rotationally movable control stem respectively selecting and actuating at least one of the functions. The control stem occupies at least first, second and third distinct, successive axial positions. An actuating lever bears first and second wheels and pinions. The actuating lever occupies a neutral position when the control stem is in one of its first and third positions, and pivots, on either side of the neutral position, between a first driving position actuating the first function responsive to control stem rotation in a first direction, and a second driving position actuating the second function responsive to a control stem rotation in a second direction. Also disclosed is a movement including such a selection and actuation device as well as to a timepiece including such a movement.

A selection and actuation device for at least a first and second function of a watch movement includes a translationally and rotationally movable control stem respectively selecting and actuating at least one of the functions. The control stem occupies at least first, second and third distinct, successive axial positions. An actuating lever bears first and second wheels and pinions. The actuating lever occupies a neutral position when the control stem is in one of its first and third positions, and pivots, on either side of the neutral position, between a first driving position actuating the first function responsive to control stem rotation in a first direction, and a second driving position actuating the second function responsive to a control stem rotation in a second direction. Also disclosed is a movement including such a selection and actuation device as well as to a timepiece including such a movement.

A mechanical horological movement includes a barrel, an escape wheel set associated with a mechanical resonator, a display wheel set configured to carry a display member including a chronograph hand and driven rotatably by the barrel, and a braking spring configured to generate a braking torque on the display wheel set when the display wheel set is subjected to a rotary drive torque to prevent trembling of the display member. The mechanical horological movement further includes an intermediate part, including a washer, located between the braking spring and an arbor of the display wheel set, the intermediate part being mounted to rotate freely on the arbor. The intermediate part and the braking spring are arranged so that the intermediate part remains stationary and non-rotating in normal operation. The braking spring overall exerts a pressing force over the intermediate part in the direction of the arbor to generate the braking torque.