A balance spring system of a horology movement, comprising: a balance spring (1); a movement blank; a first element (1c) for indexing the position of an outer end (10) of the balance spring relative to the blank; and a unit (OL) for connection of the outer end (10) of the balance spring to the movement blank,
the first indexing element (1c) being designed such as to be displaceable relative to the connection unit (OL).

Timepiece regulating mechanism including an energy storage means delivering an output torque (CS), via a train (3), to a wheel set (4) forming a magnetic escapement mechanism (10) with a resonator wheel set (5) subjected to the torque from a return means (6) and cooperating therewith, either directly or via a magnetic stop member (7), this magnetic escapement mechanism (10) being arranged to operate when the wheel set (4) receives a torque higher than or equal to a maintenance torque (CE), and the train (3) includes a torque regulating means (30) arranged to deliver to the wheel set (4) a constant torque comprised between 1.0 and 2.0 times the maintenance torque (CE), the torque regulating means (30) including a fusee (8) of continuously variable cross-section, from which unwinds a chain (9), wound by a drum (21), directly or indirectly driven by the energy storage means (2).

Timepiece regulating mechanism including an energy storage means delivering an output torque (CS), via a train (3), to a wheel set (4) forming a magnetic escapement mechanism (10) with a resonator wheel set (5) subjected to the torque from a return means (6) and cooperating therewith, either directly or via a magnetic stop member (7), this magnetic escapement mechanism (10) being arranged to operate when the wheel set (4) receives a torque higher than or equal to a maintenance torque (CE), and the train (3) includes a torque regulating means (30) arranged to deliver to the wheel set (4) a constant torque comprised between 1.0 and 2.0 times the maintenance torque (CE), the torque regulating means (30) including a fusee (8) of continuously variable cross-section, from which unwinds a chain (9), wound by a drum (21), directly or indirectly driven by the energy storage means (2).

A timepiece rotating regulator mechanism for regulating the rotational speed of a mechanism subjected to the action of a motor device through a transmission device, including an oscillator mechanism indirectly connected to the transmission device by a movement transformation device including a connecting-rod-crank-handle system, with a crank-handle rotated about a crank-handle axis by the transmission device, and a connecting-rod angularly moveable on the one hand in relation to the crank-handle, and on the other hand in relation to an inertial mass that this oscillator mechanism includes, to ensure the maintenance of the oscillator mechanism by the energy supplied by the motor device, and to ensure the speed regulation of a train that the transmission device include in relation to the frequency of the oscillator mechanism.

A timepiece rotating regulator mechanism for regulating the rotational speed of a mechanism subjected to the action of a motor device through a transmission device, including an oscillator mechanism indirectly connected to the transmission device by a movement transformation device including a connecting-rod-crank-handle system, with a crank-handle rotated about a crank-handle axis by the transmission device, and a connecting-rod angularly moveable on the one hand in relation to the crank-handle, and on the other hand in relation to an inertial mass that this oscillator mechanism includes, to ensure the maintenance of the oscillator mechanism by the energy supplied by the motor device, and to ensure the speed regulation of a train that the transmission device include in relation to the frequency of the oscillator mechanism.

A timepiece resonator mechanism (100), including a structure (1) carrying, by a flexible suspension (300), an anchoring block (30) from which is suspended an inertial element (2) oscillating about a pivot axis (D) extending in a first direction Z, according to a first rotational degree of freedom RZ, under the action of return forces of a flexible pivot (200) including elastic longitudinal strips (3) each fixed to said inertial element (2) and to said anchoring block (30), the resonator mechanism including a viscous substance (10) arranged at least partly around the flexible suspension (300), the viscous substance (10) being configured to at least partly dissipate the energy due to a shock.

A flexible guide assembly for a rotating resonator mechanism, the assembly including a fixed support and two flexible guides extending in substantially the same plane or in two different parallel planes, the first flexible guide including a first element movable with respect to the fixed support, a first pair of flexible strips connected to the first movable element, such that the first movable element can move by bending the strips of the first pair in a circular motion about a first centre of rotation, the second flexible guide includes a second element movable with respect to first movable element, a second pair of flexible strips connecting the second movable element to the first movable element, such that the second movable element can move with respect to the first movable element by bending the strips of the second pair in a circular motion about a second centre of rotation. The first centre of rotation and the second centre of rotation are offset by a first predefined distance belonging to a plane of the assembly.

A flexible guide assembly for a rotating resonator mechanism, the assembly including a fixed support and two flexible guides extending in substantially the same plane or in two different parallel planes, the first flexible guide including a first element movable with respect to the fixed support, a first pair of flexible strips connected to the first movable element, such that the first movable element can move by bending the strips of the first pair in a circular motion about a first centre of rotation, the second flexible guide includes a second element movable with respect to first movable element, a second pair of flexible strips connecting the second movable element to the first movable element, such that the second movable element can move with respect to the first movable element by bending the strips of the second pair in a circular motion about a second centre of rotation. The first centre of rotation and the second centre of rotation are offset by a first predefined distance belonging to a plane of the assembly.

A method for producing a thermocompensated and coloured coil spring including the steps of forming a first layer of silicon oxide on at least one face of the core and on at least one other face of the core, the first layer having a thickness equal to a fraction of the thickness required for achieving thermal compensation, removing the first layer from at least one face of the core, forming a second layer of silicon oxide on at least one face of the core and on at least one other face of the core, the second layer having a thickness equal to the remaining fraction of the thickness required for achieving thermal compensation which is lower than or equal to 1 μm for giving at least one face of the core a colour as a result of the interference effect.

A method for producing a thermocompensated and coloured coil spring including the steps of forming a first layer of silicon oxide on at least one face of the core and on at least one other face of the core, the first layer having a thickness equal to a fraction of the thickness required for achieving thermal compensation, removing the first layer from at least one face of the core, forming a second layer of silicon oxide on at least one face of the core and on at least one other face of the core, the second layer having a thickness equal to the remaining fraction of the thickness required for achieving thermal compensation which is lower than or equal to 1 μm for giving at least one face of the core a colour as a result of the interference effect.