The timepiece comprises a timekeeping mechanism and a switching device arranged to switch this timekeeping mechanism between two states. The switching device comprises a movable switching organ and a rotary control organ arranged to be stepwise driven in order to successively occupy a plurality of distinct angular positions about its axis of rotation. The movable switching organ and the rotary control organ respectively support a first magnetic structure and a second magnetic structure arranged so that, in a first angular position of the rotary control organ, a first magnetic force acts on the switching organ in a given direction, and so that, in a second angular position of the rotary control organ, a second magnetic force acts on the switching organ in the opposite direction.

A system (1) for resetting a chronograph is provided with a chronograph counting geartrain (2), which includes a minute counter having a minute wheel set (4), and a seconds counter, which includes a chronograph wheel set (3). The system includes a hammer held blocked by blocking device (11) and displaceable from an inactive position, where the hammer is blocked by the blocking device, and an active position, when the hammer is unblocked, for resetting the chronograph in contact with the various wheel sets (3, 4); a flexible element (10) connected between a reset controller (12) and the hammer for resetting the chronograph, and configured to store energy during a displacement of the controller and before unblocking the hammer blocked by the blocking device to be able, when the hammer is unblocked, to restore this stored energy and drive the hammer to reset the chronograph.

A zeroing device (200), including a first zeroing unit (71), which consists of a zeroing lever (12) having a zeroing lever arm (12a) and a zeroing lever latch (12b), wherein the zeroing lever latch (12b) has a first end (13) and a second end (14). The zeroing device is characterized by a second zeroing unit (72) that is arranged at an offset to the first zeroing unit (71) in a Z coordinate direction (Z) and is in operative connection with the first zeroing unit (71). The second zeroing unit (72) may also include a pendulum rod (31), a hinge support (34), and a joint rod (35), wherein the pendulum rod (31) is rotatably attached to a cam (33) and to the joint rod (35) and wherein the joint rod (35) is rotatably attached to the hinge support (34) and rests against an eccentric (36) of the zeroing lever (12).

A device for selecting and controlling functions of a horological movement, including a selector member arranged such that, when it is acted on, it causes a column wheel including a plurality of coaxial cams which are integral with one another for rotation as one, to rotate in a single direction of rotation, the device including a plurality of transmission yokes, each of which is arranged such that it bears against a cam specific thereto so as to be able to successively occupy, depending on the angular position of the cam, a rest position and an active position, each transmission yoke being configured such that when it occupies the active position, it is disposed in the path of a control member which is intended, when it is acted on from a rest position, to drive the transmission yoke located in an active position, towards a position for controlling a function specific thereto.

A movement includes a tourbillion block, a tourbillion unit, and a zero reset mechanism. The tourbillion unit includes a carriage, a balance wheel, and an escape wheel. The balance wheel and the escape wheel are rotationally arranged on the carriage. The carriage is rotationally supported on the tourbillion block. The zero reset mechanism includes a first wheel in engagement with the escape wheel. The movement is switchable between a driving mode and a reset mode. When in the driving mode, the zero reset mechanism is rotationally locked to the tourbillion block. When in the reset mode, the zero reset mechanism is rotatable relative to the tourbillion block.

A clockwork column selector mechanism, including a mobile with columns protruding above a base surface separated by clearances, forming slots along a profile, arranged to, in certain positions of the mobile, enable the insertion of a feeler-spindle into a clearance in a transverse direction substantially normal to the profile and parallel to the reference surface, and to, in other positions of the mobile, stop a feeler-spindle on a transverse surface of a column, at least one column including an intermediate transverse stopping surface constituting a stop bearing surface of a feeler-spindle and enable a partial insertion of a feeler-spindle in the thickness of one the slot, and which is located, in a transverse direction, between the geometric envelopes of two end transverse surfaces transversely delimiting this column.

A system (1) for resetting a chronograph is provided with a chronograph counting geartrain (2), which includes a minute counter having a minute wheel set (4), and a seconds counter, which includes a chronograph wheel set (3). The system includes a hammer held blocked by a blocking means (11) and displaceable from an inactive position, where the hammer is blocked by the blocking means, and an active position, when the hammer is unblocked, for resetting the chronograph in contact with the various wheel sets (3, 4); a flexible element (10) connected between a reset control means (12) and the hammer for resetting the chronograph, and configured to store energy during a displacement of the control means and before unblocking the hammer blocked by the blocking means to be able, when the hammer is unblocked, to restore this stored energy and drive the hammer to reset the chronograph.

A safety device for a striking-work including a first wheel, a second wheel and an actuating member. The first wheel is meshed which drives it in rotation about a shaft and it includes an abutment member. The second wheel is also in rotation about the shaft and is in contact with the abutment member. The second wheel includes a portion configured for an actuating member to act on the intermediate portion so as to move the second wheel.

A movement includes a tourbillion block, a tourbillion unit, and a zero reset mechanism. The tourbillion unit includes a carriage, a balance wheel, and an escape wheel. The balance wheel and the escape wheel are rotationally arranged on the carriage. The carriage is rotationally supported on the tourbillion block. The zero reset mechanism includes a first wheel in engagement with the escape wheel. The movement is switchable between a driving mode and a reset mode. When in the driving mode, the zero reset mechanism is rotationally locked to the tourbillion block. When in the reset mode, the zero reset mechanism is rotatable relative to the tourbillion block.

A clockwork column selector mechanism, including a mobile with columns protruding above a base surface separated by clearances, forming slots along a profile, arranged to, in certain positions of the mobile, enable the insertion of a feeler-spindle into a clearance in a transverse direction substantially normal to the profile and parallel to the reference surface, and to, in other positions of the mobile, stop a feeler-spindle on a transverse surface of a column, at least one column including an intermediate transverse stopping surface constituting a stop bearing surface of a feeler-spindle and enable a partial insertion of a feeler-spindle in the thickness of one the slot, and which is located, in a transverse direction, between the geometric envelopes of two end transverse surfaces transversely delimiting this column.