Abstract: An oscillator includes a resonator, which has an inertial mass returned by an elastic return and carries entry and exit pallets cooperating with teeth of an escape wheel each provided with a magnet. Each pallet includes a magnetic arrangement, with an annular sector, centred on the axis of oscillation of the resonator, defining a first magnetic barrier area extending above and/or below a mechanical pallet-stone of the entry pallet or exit pallet, over the entire length of this mechanical pallet-stone acting as support for the teeth during the supplementary arc, in order to form a magnetic cylinder escapement mechanism.

Abstract: A timepiece regulator includes a detached lever escapement mechanism, and a resonator with a quality factor Q including an inertia element comprising an impulse pin integral with an inertia element and cooperating with a fork of the lever. This inertia element is subjected to the action of elastic return means directly or indirectly fixed to the plate and is arranged to cooperate indirectly with an escape wheel set comprised in the escapement mechanism. This resonator mechanism 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 attached to the plate, defining together a virtual pivot with a main axis (DP), the lever pivoting about a secondary axis (DS).

Abstract: A mechanical timepiece oscillator includes, between a support and an inertial element, a flexure bearing with flexible strips crossed in projection, including, superposed, an upper level that includes, between an upper support and an upper inertial element, an upper primary strip in a first direction and an upper secondary strip in a second direction, and a lower level that includes, between a lower support and a lower inertial element, a lower primary strip in the first direction and a lower secondary strip in the second direction. The upper level and lower level include, between the support and the upper or respectively lower support, a translational table with an elastic connection along one or two axes of freedom in the oscillation plane, of lower stiffness than that of each flexible strip.

Abstract: A method for making a flexure bearing for an oscillator with an inertial element oscillating in a plane supported by flexible strips fixed to a stationary support returning it to a rest position includes: forming the bearing with basic strips in superposed levels, each having an aspect ratio of less than 10; breaking down the number of basic levels into a plurality of sub-units, each including one or two strips joining a basic support and a basic inertial element, which are made by etching substrates; assembling the sub-units by joining their basic inertial elements; and fixing the basic supports to the support, directly or via translational tables along one or two in-plane translational degrees of freedom, of lower translational stiffness than that of the sub-unit.

Abstract: A mechanical timepiece oscillator including, between a first element and a second inertial element, more than two distinct flexible strips returning the inertial element to a rest position in an oscillation plane, wherein the projections of these strips cross each other, at a point, through which passes the axis of pivoting of the second solid inertial element, and the height to thickness aspect ratio is less than 10 for each strip.

Abstract: 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.

Abstract: A mechanical oscillator with an inertia element oscillating about a virtual pivot axis of fixed position with respect to a fixed base to which it is suspended by several flexible connections, each including a deformable compass-like member including elastic strips forming a first arm fixed to a base and a second arm fixed to the inertia element, joined at a reversal edge defining a apex of the deformable compass-like member, wherein in an unstressed rest state of the oscillator, the projection of the apex is on a first side of the pivot axis, opposite to a second side where the ends of the first and second arms are projected.

Abstract: A timepiece regulating mechanism including primary resonators each with an inertial weight suspended by flexible strips to a fixed structure with respect to which this weight pivots, and mechanical device of synchronizing the primary resonators which include, between the inertial weights, an articulated connection which, under normal conditions, allows pivoting of the inertial weights in opposite directions of rotation and with close rotation angles, and during a shock, prevents pivoting thereof in the same direction of rotation, the mechanism including an oscillator with a frictional rest escapement mechanism arranged to cooperate alternately with the primary resonators, on pallet stones of the inertial weights.

Abstract: A timepiece mechanism including a first component and a second component configured to cooperate with each other in a relative motion on a trajectory in an interface area, wherein a first path of the first component includes magnetic and/or electrostatic actuation components, configured to exert a contactless stress on complementary magnetic and/or electrostatic actuation components included in a second path belonging to the second component. Throughout a monotonous relative movement of the second path with respect to the first path, interaction energy between the first component and second component has a variable gradient with at least one position of discontinuity of the gradient, which corresponds to a variation in the contactless stress, the position of discontinuity of the gradient corresponding, in a variant, to an abrupt variation in the contactless stress.

Abstract: A timepiece resonator mechanism including a structure carrying, via a flexible suspension system, an anchor unit to which is suspended an inertia element oscillating with a first rotational degree of freedom RZ, under the action of return forces exerted by a flexure pivot including first elastic strips each fixed to the inertia element and to the anchor unit, the flexible suspension system being arranged to allow the anchor unit some mobility in every degree of freedom except the first rotational degree of freedom RZ wherein only the inertia element can move to avoid any disturbance to its oscillation, and the stiffness of the suspension system in the first rotational degree of freedom RZ is very considerably higher than the stiffness of the flexure pivot in this same rotational degree of freedom RZ.

Abstract: A method for adjusting a rate of a timepiece after encasing a movement to ensure a better rate for the timepiece.

Abstract: 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).

Abstract: A timepiece regulator includes a detached lever escapement mechanism and a resonator with a quality factor Q including an inertia element. An impulse pin is integral with an inertia element and cooperates with a fork of the lever. The inertia element is subjected to the action of an elastic return directly or indirectly fixed to the plate and arranged to cooperate indirectly with an escape wheel set included in the escapement mechanism. The resonator mechanism is a resonator with a virtual pivot rotating about a main axis, with a flexure bearing subjected to the return force of at least two flexible strips attached to the plate, defining together a virtual pivot with a main axis. The lever pivots about a secondary axis. The lever is made of silicon added to an arbor pivoted with respect to the plate.

Abstract: 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 (?) of the resonator, during which the impulse pin is in contact with the fork, is less than 10°, and the ratio IB/IA between the inertia IB of the inertia element with respect to the main axis (DP) and the inertia IA of the lever with respect to the secondary axis (DS) is greater than 2Q·?2/(0.1·?·?2), where ? is the lift angle of the lever corresponding to the maximum angular travel of the fork.

Abstract: A timepiece resonator mechanism includes a structure and an inertial element oscillating around an axis and subjected to restoring forces exerted by a plurality of elastic blades, each fixed directly or indirectly to the structure at a first end and fixed directly or indirectly to an inertial element at a second end. The elastic blade extends in a perpendicular plane to the pivot axis and is deformable substantially in this plane, where this resonator mechanism includes an axial stop including at least a lower axial stop and/or an upper axial stop, and the axial stop is arranged for the protection of the blade resonator mechanism against axial shocks in the direction of the axis.

Abstract: Timepiece regulator comprising a detached lever escapement mechanism, and a resonator with a quality factor Q including at least one inertia element including an integral impulse pin cooperating with a fork of the lever, this inertia element being subjected to the action of elastic return means directly or indirectly fixed to the plate and being arranged to cooperate indirectly with an escape wheel set comprised in the escapement mechanism, this resonator mechanism 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 attached to the plate, defining together a virtual pivot with a main axis (DP), the lever pivoting about a secondary axis (DS), and the fork is enlarged in comparison to the fork of a conventional Swiss lever.

Abstract: A self-winding watch includes a movement connected to a winding device of a barrel spring including an oscillating weight pivoting around an axis A, a reduction wheel train cooperating with the oscillating weight to transmit the torque to the barrel, a storage unit for electrical energy, a photovoltaic cell arranged to receive the ambient light and charge the electrical energy storage unit, a control circuit connected to the terminals of the electrical energy storage unit and a driver connected to the circuit and coupled to the oscillating weight to displace it. The electrical energy storage unit, the control circuit an d the driver are integrated to the oscillating weight.

Abstract: A process for producing a metal alloy balance wheel by molding, the process including the following steps: a) making a mold in the negative shape of the balance wheel, b) getting hold of a metal alloy that has a thermal expansion coefficient of less than 25 ppm/° C. and is able to be in an at least partly amorphous state when it is heated to a temperature between its glass transition temperature and its crystallization temperature, c) putting the metal alloy into the mold, the metal alloy being heated to a temperature between its glass transition temperature and its crystallization temperature so as to be hot-molded and to form a balance wheel, d) cooling the metal alloy to obtain a balance wheel made of the metal alloy, e) releasing the balance wheel obtained in step d) from its mold.

Abstract: Isochronous pivot for a resonator including two flexible strips joining attachment points of a first and a second element, defining two strip directions, and a pivot axis, at the intersection of their projections or at their intersection, each strip having a free length between its attachment points, and an axial distance between the pivot axis and the attachment point thereof farthest from the axis, the attachment point ratio X=D/L being greater than one for each strip, the strip directions defining with the axis a first apex angle whose value in degrees is comprised between f1(X)=108+67/(10X?6), and f2(X)=113+67/(10X?6).

Abstract: An isochronous pivot for a resonator including two flexible strips joining attachment points of a first and a second element, defining two strip directions, and a pivot axis, at the intersection of their projections or at their intersection, each strip having a free length between its attachment points, and an axial distance between the pivot axis and the attachment point thereof farthest from the axis, the attachment point ratio X=D/L being greater than one for each strip, the strip directions defining with the axis a first apex angle whose value in degrees includes between f1(X)=108+67/(10X?6), and f2(X)=113+67/(10X?6).