A spiral spring for a horological resonator mechanism, including a flexible strip (2) coiled on itself into several turns, the strip (2) having a predefined stiffness. The spring (1) include an element for adjusting its stiffness, including a unique elongate flexible element (5) arranged in series with the strip (2), and connecting one end (4) of said strip (2) to a fixed support (11), to add additional stiffness. The flexible element (5) has a stiffness higher than that of the strip (2). A prestressing element (6) applies two different efforts on the element (5), and includes a first lever (8) attached to the end (4) of the strip (2) to allow adjusting a first effort, and a second lever (8) also attached to the end (4) of the strip (2) to adjust a second effort independently of the first effort.

A setting machine (1000) for making a setting and/or adjustment on an assembly (1) attached to a receptacle (10), including a positioning module (100) to move this receptacle (10) on command from control means (3000) to convey it into a setting and/or adjustment position below an acquisition module (200), which includes measuring and/or testing means for determining the spatial position of the receptacle (10), and including a setting and/or adjustment module (400) for making a setting and/or an adjustment with motorised axes for moving, opening and closing, in a clamp plane perpendicular to a clamp rotation direction (DF, DG), a clamp (600) arranged to drive or deform a mobile component or a component included in such an assembly (1) borne by a receptacle (10), and method for using such a setting machine for setting and/or adjusting at least one horological component.

A device (6) for autonomously adjusting the active length of a balance spring (5), for an oscillator (4, 5) of the sprung balance type, including a cock (12) mounted on a plate (13) of a horological movement (2) and in which cock a balance staff pivots, the balance spring (5) including an inner end integral with the balance staff and an outer end integral with a stud (8) fastened to a stud-holder (10), the stud-holder (10) being pivotally mounted on the cock (12) concentrically with the balance staff, and means for modifying the active length of the balance spring (5).

A balance spring (1) intended to be fitted to a timepiece balance having fixed inertia, the balance spring (1) being formed of a core (10) having lateral faces (10c) connecting an upper face (10a) to a lower face (10b), the balance spring (1) including on one of the lateral faces (10) in one portion of the outer coil (5), a coating formed of one or more layers, the coating including two layers with a first electrically conductive layer (12) coated with a second outer layer (13) made of a ceramic, or a combined layer (13), made of an electrically conductive ceramic. Also a method of manufacturing this balance spring.

A spiral spring for a timepiece resonator mechanism, the spiral spring extending substantially in a plane and including a flexible blade wound on itself in several turns and a setting device for modifying the effective length of the wound blade, the setting device including a clamp movable along at least one ending portion of the spiral spring, the clamp extending substantially in the plane of the spiral spring, the clamp including two bearing faces arranged on either side of the wound blade in a multiplicity of positions so as to define a variable effective length of the spiral spring, the clamp and the wound blade being linked to each other by a flexible element allowing the clamp and the bearing faces to be displaced along the wound blade.

A timepiece balance spring made of micromachinable material including a plurality of stages, each forming a spiral wound spring, parallel to each other and all attached to a common axial collet or to the same balance staff, each stage including, at its respective outer end, its own attachment to a balance spring stud which are independent of those of the other stages, the attachment including a position adjustment with respect to a balance spring stud which are also independent of those of the other stages, the attachment and the position adjustment together forming built-in isochronism correction mechanism for the balance spring, and the position adjustment including a plurality of discrete position adjustment positions including housings each arranged to retain a stud.

A regulating member (1) for a horological movement including an inertial mass, for example a balance (23), a balance spring (25), a balance bridge (22), and an index system (20) for adjusting the rate of the balance spring (25), the index system (20) including a stud-holder (31) including a first stud (34) on which the balance spring (25) is mounted. The balance bridge (33) includes a second stud on which the balance spring (25) is also mounted, the stud-holder (31) being rotatable relative to the balance bridge (33) in order to adjust the rate of the regulating member (1).

A regulator of the present disclosure includes a regulator pin having a pair of leg portions in which a hairspring is loosely fitted in a gap between the pair of leg portions, a regulator body configured to hold the regulator pin, and a pin support having an attachment portion that is detachably attached to the regulator pin or the regulator body, and a receiving portion that prevents the hairspring from being detached from the pair of leg portions.

A timepiece incorporating a mechanical movement and including a device for setting its rate, including a rotationally mobile part and a setting mobile (4) controlling the angular position of the rotationally mobile part. The setting device includes a lever (5) fitted with a linking train (6) and by a actuator button, between an uncoupled position and a coupled position. The setting mobile is kinematically joined, via the linking train (6), to a mobile (7) on a correction device, including a control arbor fitted with a crown enabling the mobile to be actuated, or to a drive mobile of an indicator which can be driven by the correction device when correcting the data displayed by the indicator to set the rate of the timepiece by actuating the button.