An horological movement includes an analogue time display, a geartrain, a barrel and an electromechanical oscillator, which is formed of a resonator, including a balance and a piezoelectric balance-spring, and a mechanical escapement, and further includes an electronic control circuit connected to an electrical energy source and arranged to be able to control the application of an electrical voltage on at least one electrode of the piezoelectric balance-spring so as to generate driving electrical pulses for the oscillator. The horological movement is configured such that the barrel is capable, in a first main state, of maintaining alone a functional oscillation of the oscillator with a first amplitude, while in a second main state, the electronic control circuit powers the piezoelectric balance-spring to maintain, partially or fully, the oscillation of the resonator with a second amplitude greater than the first amplitude for any spatial orientation, the second amplitude being preferably constant.

A horological device including an oscillator of a watch and device for stopping this oscillator embedded in a carriage of a tourbillon or karussel, including a rod arranged to axially push a lifting finger into an active blocking position, against a first spring tending to recall same axially into a rest position in which it bears against a carriage wheel, which lifting finger includes a ramp radially repelling a stop finger against a second spring tending to radially distance same from the axis, which stop finger is remote from the axis when the lifting finger is in the rest position thereof, and, in the active blocking position of this lifting finger, the stop finger can interfere with a stop cam integral with a wheel set of the oscillator, in an angular position remote from the dead center position of the oscillator.

A Watch (500) including a movement (200) with a tourbillon (100) including a carriage (1) pivotally mounted about a tourbillon axis (DT) with respect to a structure (300) and carrying a balance (2) pivoting about a balance axis (DB) and arranged to cooperate in a reciprocating motion with a stop device (3) pivotally mounted on this carriage (1), and wherein this tourbillon (100) includes a fixed magnet wheel (50) fixed to this structure (300) and comprising at least one continuous magnetic track and/or comprising a series of magnets, this magnetic track being arranged to cooperate by magnetic repulsion and/or attraction with at least one magnet (33) comprised in this stop device (3) in a reciprocating motion of this stop device (3) with respect to this fixed magnetic wheel (50).

A mechanical watch or measurement instrument having metallic parts, wherein each part of the mechanical watch mechanism has a relative magnetic permeability of less than 1.01.

A regulating device including an oscillator and capable of blocking this oscillator carried by the carriage of a tourbillon or karussel, and including a stop wheel, coaxial to the carriage wheel and limited in angular mobility by a stop pin limited by a slot of the carriage, and including a toothing engaging with an external control member for the rotation thereof, the carriage carries a resilient element arranged so as to bear against a wheel set of the oscillator to stop the latter when the control member is in an active position, and to remain remote from the carriage and from any wheel set of the oscillator when the control member is in a rest position, wherein the stop wheel is in another angular position relative to the carriage wheel.

A limiting device for a watch, including an oscillator, and capable of blocking this oscillator carried by the carriage of a tourbillon or karussel, with two intermediate drive wheels integral with arbors pivoted in a plate and rotating in opposite directions to one another, one whereof is driven in rotation by an engaging rod engaging with a control member external to the tourbillon or karussel, each of the intermediate wheels carries at least one resilient element, is arranged so as to bear against a mobile component of the oscillator in order to stop same upon passage of the control member from a rest position to an active position wherein each resilient element bears against this mobile component of the oscillator, or against the carriage, and so as to remain remote from the carriage and from any mobile component of the oscillator when the control member is in the rest position thereof.

A timepiece drive mechanism including a structure on which pivots an arm subjected to the return torque of a first energy source, this arm carrying a planetary gear including a wheel, a second energy source subjecting to a return torque a third wheel set on which the wheel rolls, under the action of the first energy source, the structure carries a stop device cooperating with complementary a stop device of the third wheel set to hold the latter in position, which are uncouplable under the action of uncoupling control device of the arm at the end of the forward angular travel of the arm to allow the third wheel set to pivot in a single direction under the action of the second energy source, causing a backward rotation of the arm to its start-of-angular-travel position.

A horological movement including a tourbillon or karussel frame carried by an arm subjected to the torque of a first energy source, and a second energy source driving a frame pitch mobile driving the frame, and, for periodically controlling a retrograde movement of the arm, a release mobile connected to the second energy source and cooperating at a pallet-stone with an interrupted cam that a cam mobile kinematically connected to this arm includes, to allow advancing the arm in a direct direction as long as the pallet-stone is resting on the cam, and to control a rapid retrograde return of this arm during a drop of the pallet-stone between two of its successive support surfaces on the cam.

An adjustment member for a watch including a fixed structure extending substantially perpendicularly to an axial direction, the adjustment member including a regulating member with a balance arranged to pivot about a balance axis, this balance is pivoted by magnetic pivots in a carriage, arranged to pivot about a carriage axis, and comprised in a device for annulling variations in rate in the vertical positions, formed by a tourbillon or a carrousel, comprised in the adjustment member, and the carriage carrying magnets defining the balance axis which is perpendicular or oblique to the carriage axis.

A device for guiding a pivoting mass about an axis. A first support is fixed and a second support forms or supports the pivoting mass. The device is includes a first and second flexible leaf oriented in the same direction when the device is at rest, and an intermediate leaf having a rigidity notably greater than the flexible leaves and connecting the first flexible leaf to the second, the device including a first fixed link formed by the first support and a first end of the first leaf, a second fixed link formed by a second end of the first leaf and by a first end of the intermediate leaf, a third fixed link formed by a second end of the intermediate leaf and by a first end of the second leaf and a fourth fixed link formed by at least one second end of the second leaf, wherein the first and/or the fourth link is arranged substantially between the second and the third link in the direction when the device is at rest.