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.

A balance-spring stud for fixing with a spot of glue a free end of a last turn on the outside of a spiral spring for a timepiece movement, this balance-spring stud includes a base within a plane, first and second arms extending from the plane and free at their end opposite the base, the first and second arms being separated from one another by a gap in which the free end of the last turn on the outside of the spiral spring that is trapped in the hardened spot of hardened glue is housed, at least one of the first and second arms being provided with a stop device arranged to prevent the spot of hardened glue in which the free end of the last turn on the outside of the spiral spring is trapped from being released from the gap in which the spot of hardened glue is housed when this spot of hardened glue no longer adheres to the balance-spring stud.

Disclosed is a method for manufacturing a horological component according to which a silicon-based piece having the desired shape of the horological component is produced and the piece is subjected to a thermal oxidation and deoxidation treatment to remove a predetermined thickness of silicon in order to increase the mechanical strength of the piece. This method is characterized in that the thermal oxidation and deoxidation treatment is carried out in several steps, each step including a thermal oxidation phase followed by a deoxidation phase.

Disclosed is a method for manufacturing a horological component according to which a silicon-based piece having the desired shape of the horological component is produced and the piece is subjected to a thermal oxidation and deoxidation treatment to remove a predetermined thickness of silicon in order to increase the mechanical strength of the piece. This method is characterized in that the thermal oxidation and deoxidation treatment is carried out in several steps, each step including a thermal oxidation phase followed by a deoxidation phase.

Horological resonator (100) including an inertia mobile component (1) oscillating about an axis of oscillation (D1) and including at least one magnetic area (10), the total resultant magnetic moment of all of the magnetic areas (10), included in the inertia mobile component (1), is aligned in the direction of the axis of oscillation (D1), this inertia mobile component (1) bearing at least one balancing magnet (6), the direction of the magnetic moment thereof crosses the axis of oscillation (D1) to obtain magnetic balancing of the inertia mobile component (1).

Horological resonator (100) including an inertia mobile component (1) oscillating about an axis of oscillation (D1) and including at least one magnetic area (10), the total resultant magnetic moment of all of the magnetic areas (10), included in the inertia mobile component (1), is aligned in the direction of the axis of oscillation (D1), this inertia mobile component (1) bearing at least one balancing magnet (6), the direction of the magnetic moment thereof crosses the axis of oscillation (D1) to obtain magnetic balancing of the inertia mobile component (1).

Disclosed is a method of making a timepiece spring from monocrystalline material including the following steps: drawing the spring; identifying one or more zones of weakness of the spring in which or in at least one of which the spring will break in the event of excessive deformation; manufacturing the spring from a wafer of monocrystalline material extending in a determined plane, while orienting the spring in the wafer such that the direction of the macroscopic stresses in the or each zone of weakness when the spring is deformed is substantially parallel to a plane of cleavage of the material intersecting the determined plane. Also disclosed is a timepiece spring obtained by such a method.

Disclosed is a method of making a timepiece spring from monocrystalline material including the following steps: drawing the spring; identifying one or more zones of weakness of the spring in which or in at least one of which the spring will break in the event of excessive deformation; manufacturing the spring from a wafer of monocrystalline material extending in a determined plane, while orienting the spring in the wafer such that the direction of the macroscopic stresses in the or each zone of weakness when the spring is deformed is substantially parallel to a plane of cleavage of the material intersecting the determined plane. Also disclosed is a timepiece spring obtained by such a method.

A horological resonator mechanism includes a structure and an anchoring unit from which at least one inertial element arranged to oscillate along a first degree of freedom in rotation about a pivoting axis extending along a first direction is suspended. The inertial element is subjected to return forces exerted by a return to make the inertial element oscillate. The mechanism includes a stopper to stop the inertial element that can be actuated on demand to prevent the oscillations of the inertial element. The stopper moves the inertial element between a pivoting position and a stopping position in which the inertial element cannot oscillate.

A horological resonator mechanism includes a structure and an anchoring unit from which at least one inertial element arranged to oscillate along a first degree of freedom in rotation about a pivoting axis extending along a first direction is suspended. The inertial element is subjected to return forces exerted by a return to make the inertial element oscillate. The mechanism includes a stopper to stop the inertial element that can be actuated on demand to prevent the oscillations of the inertial element. The stopper moves the inertial element between a pivoting position and a stopping position in which the inertial element cannot oscillate.