Timepiece regulator (300) comprising a detached lever (7) escapement mechanism (200), and a resonator (100) including an inertia element (2), which includes an impulse pin (6) cooperating with a fork (8) of the lever (7), and which is subjected to the action of elastic return means (3) fixed to the plate (1) and is arranged to cooperate indirectly with an escape wheel set (4), this resonator (100) is a resonator with a virtual pivot rotating about a main direction (DP), with a flexure bearing returned by flexible strips (5) attached to the plate (1), defining a virtual pivot having a main axis (DP), the resonator (100) is attached to an elastic suspension strip (9) attached to the plate (1), allowing displacement in the main direction (DP), the plate (1) comprising shock absorber stops (11, 12), in the main direction (DP), cooperating with at least one stiff element of the inertial element (2).

A natural escapement for horological movement carrying out a succession of operating cycles each including a first and second alternation of a balance that comprises a balance wheel on an arbor of which is adjusted a balance plate. A first escape wheel set having a first toothing is driven by a wheel set of the train of the horological movement, driving in turn a second escape wheel set having a second toothing. The first and second wheel sets form a kinematic chain arranged to cooperate with an anchor to pivot about an anchor-staff, the balance plate carrying a second impulse pallet-stone through which the balance plate receives a direct and tangential driving impulse from the first escape wheel set during the first alternation, and a first impulse pallet-stone through which this balance plate receives a direct and tangential driving impulse from the second escape wheel set during the second alternation.

A natural escapement for horological movement carrying out a succession of operating cycles each including a first and second alternation of a balance that comprises a balance wheel on an arbor of which is adjusted a balance plate. A first escape wheel set having a first toothing is driven by a wheel set of the train of the horological movement, driving in turn a second escape wheel set having a second toothing. The first and second wheel sets form a kinematic chain arranged to cooperate with an anchor to pivot about an anchor-staff, the balance plate carrying a second impulse pallet-stone through which the balance plate receives a direct and tangential driving impulse from the first escape wheel set during the first alternation, and a first impulse pallet-stone through which this balance plate receives a direct and tangential driving impulse from the second escape wheel set during the second alternation.

Timepiece regulator comprising a detached lever escapement mechanism, and a resonator with a quality factor Q including an inertia element including an impulse pin cooperating with a fork of the lever, subjected to the return force of two flexible strips attached to the plate, defining a virtual pivot having a main axis (DP), the lever pivoting about a secondary axis (DS), and the lift angle (β) of the resonator, during which the impulse pin is in contact with the fork, is less than 10°, and the ratio I.sub.B/I.sub.A between the inertia I.sub.B of the inertia element with respect to the main axis (DP) and the inertia I.sub.A of the lever with respect to the secondary axis (DS) is greater than 2Q.Math.α.sup.2/(0.1.Math.π.Math.β.sup.2), where α is the lift angle of the lever corresponding to the maximum angular travel of the fork.

Timepiece regulator comprising a detached lever escapement mechanism, and a resonator with a quality factor Q including an inertia element including an impulse pin cooperating with a fork of the lever, subjected to the return force of two flexible strips attached to the plate, defining a virtual pivot having a main axis (DP), the lever pivoting about a secondary axis (DS), and the lift angle (β) of the resonator, during which the impulse pin is in contact with the fork, is less than 10°, and the ratio I.sub.B/I.sub.A between the inertia I.sub.B of the inertia element with respect to the main axis (DP) and the inertia I.sub.A of the lever with respect to the secondary axis (DS) is greater than 2Q.Math.α.sup.2/(0.1.Math.π.Math.β.sup.2), where α is the lift angle of the lever corresponding to the maximum angular travel of the fork.

A micromechanical functional assembly including at least one first part with a first functional surface intended to enter into frictional contact with a second functional surface, the second functional surface belonging either to the first part or to at least one second part constituting with the first part the functional assembly, wherein the functional assembly includes the first functional surface and the second functional surface are formed by a first layer including ultrananocrystalline, nanocrystalline or microcrystalline diamond, the first layer being topped by a second layer including S and F atoms. It also relates to the method for functionalising diamond.

Timepiece regulator (300) comprising a detached lever (7) escapement mechanism (200), and a resonator (100) with a quality factor Q including an inertia element (2) comprising an impulse pin (6) integral with an inertia element (2) and cooperating with a fork (8) of the lever (7), this inertia element (2) being subjected to the action of elastic return means (3) directly or indirectly fixed to the plate (1) and being arranged to cooperate indirectly with an escape wheel set (4) comprised in the escapement mechanism (200), this resonator mechanism (100) is a resonator with a virtual pivot rotating about a main axis (DP), with a flexure bearing subjected to the return force of at least two flexible strips (5) attached to the plate (1), defining together a virtual pivot with a main axis (DP), the lever (7) pivoting about a secondary axis (DS), and the fork (8) is enlarged in comparison to the fork of a conventional Swiss lever.

Timepiece regulator (300) comprising a detached lever (7) escapement mechanism (200), and a resonator (100) with a quality factor Q including an inertia element (2) comprising an impulse pin (6) integral with an inertia element (2) and cooperating with a fork (8) of the lever (7), this inertia element (2) being subjected to the action of elastic return means (3) directly or indirectly fixed to the plate (1) and being arranged to cooperate indirectly with an escape wheel set (4) comprised in the escapement mechanism (200), this resonator mechanism (100) is a resonator with a virtual pivot rotating about a main axis (DP), with a flexure bearing subjected to the return force of at least two flexible strips (5) attached to the plate (1), defining together a virtual pivot with a main axis (DP), the lever (7) pivoting about a secondary axis (DS), and the fork (8) is enlarged in comparison to the fork of a conventional Swiss lever.

A constant force escapement mechanism between an oscillator and a gear train driven by a barrel, includes a stop member cooperating with the oscillator and with toothing of a flexible, one-piece escape wheel including a pinion that meshes with an input wheel of the gear train and is connected to the toothing by flexible arms configured to store energy from the gear train and to restore energy according to a position of a detent lever, which includes a first arm cooperating with the toothing, and a second arm cooperating with the input wheel to stop or release the input wheel. The lever tilts, at each passage of a tooth of the toothing, about a pivot bearing, and the escapement mechanism is configured to be incorporated in a movement or in a watch.

A constant force escapement mechanism between an oscillator and a gear train driven by a barrel, includes a stop member cooperating with the oscillator and with toothing of a flexible, one-piece escape wheel including a pinion that meshes with an input wheel of the gear train and is connected to the toothing by flexible arms configured to store energy from the gear train and to restore energy according to a position of a detent lever, which includes a first arm cooperating with the toothing, and a second arm cooperating with the input wheel to stop or release the input wheel. The lever tilts, at each passage of a tooth of the toothing, about a pivot bearing, and the escapement mechanism is configured to be incorporated in a movement or in a watch.