Abstract: A mechanical horological bearing (1) intended to be arranged on a mechanical timepiece movement (10), the bearing (1) including, coaxial around a common rotation axis (D), at least one internal frame (4) and at least one external frame (5) forming a running track (20), as well as a plurality of wheels (12) sliding or rolling in the running track (20), during a relative movement between the internal frame (4) and the external frame (5) that guides them and wherein at least one of the internal frame (4) and external frame (5) is a dynamic frame, at least one structural part of the bearing (1) being produced from an elastic metal material with a high damping capacity, the damping factor of which is greater than 10%, preferably greater than 30%.

Abstract: A regulating member for a horological movement includes an oscillating weight, for example a balance, a balance spring including a flexible strip wound about itself in a plurality of turns, the strip having a predefined rigidity to allow the oscillating weight to undergo a rotary oscillatory motion, and the strip including an outer end of the strip. The regulating member includes a resilient device for compensating for external pressure, connecting the outer end to a first support that is immobile with respect to the horological movement, the resilient compensation device being configured to adapt its stiffness according to the external pressure in order to compensate for an effect of the external pressure on the regulating member. Additionally, the horological movement includes the regulating member.

Abstract: A device for assembly and alignment on a first bridge, particularly a timepiece movement plate, arranged in a first plane, the device including a second bridge arranged in a second plane, the second bridge being intended to carry a component, in particular a moving component of a timepiece resonator mechanism, the device including a device for aligning the second bridge on the first bridge, the alignment device including at least two bearing faces of the second bridge arranged orthogonally to the second plane in two different directions, the alignment device further including at least two movable adjustment pieces connected to the first bridge, the adjustment pieces each being configured to contact with one of the bearing faces to position the second bridge in a position on the first bridge, the movable pieces defining a plurality of positions of the second bridge on the first bridge.

Abstract: A rotary wheel set system of a horological movement with a rotary wheel set, a first and a second bearing, for a first and a second pivot of the arbor of the rotary wheel set, the wheel set including a mass center in a position of its arbor, the first bearing including an endstone including a main body equipped with a pyramidal cavity configured to receive the first pivot of the arbor of the rotary wheel set, the cavity having at least three faces giving its pyramidal shape, the first pivot being capable of cooperating with the cavity of the endstone to rotate in the cavity, at least one contact zone between the first pivot and a face being generated, the normal at the contact zone or zones forming a contact angle (?h) relating to the plane perpendicular to the arbor of the pivot, wherein the contact angle (?h) is less than 45°.

Abstract: A regulating member (10) for a horological movement including a balance, a balance spring including a flexible strip (2) coiled on itself in several turns, the strip (2) having a predefined rigidity to enable the balance to perform a rotary oscillatory movement, the strip including an outer end (9). The regulating member (10) includes a resilient device for compensating the direction of gravity with respect to the regulating member (10), the resilient device adapting its stiffness according to gravity to compensate for the effect of gravity on the regulating member, the resilient device including a resilient element (5) connecting the outer end (9) to a first non-movable support (7) with respect to the horological movement, as well as prestressing means (6) for applying a variable force or torque on the resilient element (5) according to the direction of gravity with respect to the regulating member (10).

Abstract: A regulating member for a horological movement including an oscillating mass, for example a balance, a flexible guide including at least two flexible blades connecting a rigid support to the oscillating mass to enable the oscillating mass to make a rotary movement about a virtual pivot, the regulating member including an elastic device for compensating for the external pressure, the elastic compensation device being arranged in series with the rigid support, so as to connect the rigid support to means for securing the regulating member to the horological movement, the elastic compensation device being configured to adapt its stiffness according to the external pressure in order to compensate for the effect of external pressure on the regulating member.

Abstract: A regulating member (1) for a horological movement including an oscillating weight, for example a balance, and a balance spring including a flexible strip (2) wound about itself in a plurality of turns, the strip (2) having a predefined rigidity to allow the oscillating weight to undergo a rotary oscillatory motion, the strip (2) including an outer end (9), wherein the regulating member (1, 10) includes a temperature-compensating resilient device configured to adapt the stiffness thereof as a function of the temperature to compensate for the effect of temperature on the regulating member (1, 10), the resilient device including a resilient element (5) connecting the outer end (9) to a first support (7) that is stationary relative to the horological movement, as well as preloading means (6) for applying a variable force or torque to the resilient element (5) as a function of the temperature.

Abstract: A member for a horological movement including an oscillating mass, for example a balance, a flexible guide including at least two main flexible blades connecting a movable support to the oscillating mass to enable the oscillating mass to make a rotary movement about a virtual pivot, wherein the regulating member includes an elastic device for compensating for the temperature arranged so as to connect the movable support to a securing device for securing the regulating member on the horological movement, the elastic compensation device being configured to adapt its stiffness according to the temperature in order to compensate for the effect of temperature on the regulating member.

Abstract: A winding machine includes motorization means arranged to move a support, carrying at least one watch or one horological movement, along a path in a plane. The motorization means are arranged to move each support parallel to a starting position corresponding to the loading or unloading of a watch or of a movement on the support, the axes of a three-dimensional frame of reference specific to the support always remaining parallel to the oriented directions that the axes occupy in the starting position.

Abstract: A balance-spring stud holder includes a clamping part defining three contact zones intended to press against a lateral wall of a projecting part of the balance bridge, a first contact zone being connected to a second contact zone by a first part and to the third contact zone by a second part of the clamping part. The first part has a first stiffness at a second median point of the second contact zone, relative to a first median point of the first contact zone, which is greater than three times a second stiffness that the second part has at a third median point of the third contact zone relative to the first median point of the first contact zone. The first stiffness can be seven times greater than the second stiffness.

Abstract: A regulating member for a horological movement including an inertial mass, for example an annular balance, a balance spring, and an index-assembly system for adjusting the rate of the balance spring, the balance spring including a coiled strip and a device for adjusting the stiffness of the balance spring, which are provided with a resilient element arranged in series with the coiled strip, the index-assembly system including a stud-holder including a first stud and a second stud, wherein the resilient element is arranged between the first stud and the second stud, the first stud being capable of moving relative to the second stud, the movement of the first stud changing the stiffness of the balance spring.

Abstract: A balance for timepieces includes a rim, a hub, and at least one arm connecting the hub to the rim. At least one portion of the balance is made of an at least partially amorphous metal alloy. The at least partially amorphous metal alloy is based on an element chosen from the group consisting of platinum, zirconium and titanium, and has a coefficient of thermal expansion comprised between 7 ppm/° C. and 12 ppm/° C. The balance can be manufactured by moulding. A resonator can include such a balance and a monocrystalline quartz balance spring.

Abstract: Micromechanical component, particularly a timepiece wheel, particularly an escapement wheel, including a substrate with a first material including at least nickel and phosphorus, which substrate is covered, on at least one surface of the substrate of the wheel, by a coating of a second material including at least nickel and poorer in phosphorus than the first material, or devoid of phosphorus, and the second material constitutes the peripheral layer of the wheel at this at least one surface of the substrate.

Abstract: A method for manufacturing a timepiece wheel, according to which a substrate is produced with a first material including at least nickel and phosphorus, the substrate is shaped to the geometry of the wheel, and a coating of the substrate is performed, galvanically and/or chemically, on at least one surface of the substrate of the wheel, with at least one second material, which constitutes the peripheral layer of the wheel at the at least one surface of the substrate of the wheel, and which includes at least nickel and which is poorer in phosphorus than the first material, or which includes nickel and is devoid of phosphorus.

Abstract: A device (1) for guiding a rotary shaft (6) of a sprung balance. The device includes at least the rotary shaft and a guide bearing (2) for guiding an end of the rotary shaft of the sprung balance, the guide bearing including at least one blade (3) and a surface (5) for coming into contact with and holding the end of the rotary shaft of the sprung balance. At least one end part of the shaft and at least the blade and the contact surface of the guide bearing are made of a material with a Young's modulus of less than or equal to 100 GPa and to reduce the coefficient of friction of the contacting parts.

Abstract: A device (1) for guiding a rotary shaft (6) of a sprung balance, including the rotary shaft and a guide bearing (2) for guiding an end of the rotary shaft. The guide bearing includes a blade (3) and a surface (5) for coming into contact with and holding the end of the rotary shaft of the sprung balance. The contacting parts are made of a material with a Young's modulus of less than or equal to 100 GPa and/or to reduce the coefficient of friction of the contacting parts. The device also includes a solid body (15) with a guide opening, such as a hole jewel (15), disposed along the axis of the rotary shaft (6) in a centred position. An end of the shaft passes through the opening without too much angular play caused by the effect of gravity.

Abstract: A flexible guide for a rotary resonator mechanism, in particular of a horological movement, the guide including a first support, an element movable relative to the first support, a first pair of flexible strips connecting the first support to the movable element, so that the movable element can displace relative to the first support by bending the strips in a circular movement about a centre of rotation, the flexible guide being arranged substantially in a plane, including a prestressing device, the prestressing device being configured to apply a force for buckling the flexible strips by bringing the first support closer to the movable element, so that the flexible guide includes two stable positions of the element movable relative to the first support for which the return moment is zero, the two stable positions having a predetermined angle of rotation therebetween.

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 process for producing a metal alloy balance wheel by molding includes a) making a mold in the negative shape of the balance wheel; b) obtaining 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; and e) releasing the balance wheel obtained in step d) from its mold. The process also includes a step for over-molding flexible centering components in the hub.

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).