Abstract: A balance-spring, in particular for a horological resonator mechanism, the balance-spring including a flexible strip coiled on itself into several coils, the strip having a predefined flexibility, the balance-spring including a device for adjusting its flexibility, the adjustment device including an elastic element in direct contact with the strip, the elastic element preferably having a flexibility less than that of the strip, the adjustment device including a prestressing device to apply a variable force or torque to the elastic element, so as to vary the flexibility of the elastic element, the elastic element and the strip being separate and assembled with each other. An horological resonator mechanism including such a balance-spring is also disclosed.

Abstract: A device (100) for testing a timepiece, including a case (1) receiving calottes (200) or watch heads (300), each calotte (200) enclosing a movement (400) and its projecting control member. The case (1) includes, removable and stackable on top of one another, a back, a frame (90) including at least one measuring support (500) forming a lower support for a calotte (200) or watch head (300), and an upper portion including a cover (10) with a locking element (16) for compressing an upper resilient element (80, 83) and holding each calotte (200) and/or each watch head (300). Each measuring support (500) is supported by a sole made of a resilient material (921) and carries an internal running sensor (510). Each movement (400) of the case (1) is phonically isolated from the other movements (400) by other resilient elements in the case (1).

Abstract: A horological calotte (200) forming a casing for a horological movement (400) according to a calibre model in a predetermined family. The movement includes a projecting control member (410) whose distal part (411) is distant from a movement axis (DM) by a radial value (VR) specific to the model. The calotte includes a ring (220) specific to the model, which is fitted in a single angular position with a bottom (210) and a cover (230) to enclose the movement (400). Its outer shape is identical for each calibre, with reference shoulders (240) defining a calotte axis (DC). The ring offsets the movement axis relative to the calotte axis in the radial direction (DR) of the control member (410), by a value such that the distal part (411) is distant from the calotte axis by a predefined value (VP) identical for all calibres of the family.

Abstract: A roller jumping timepiece display mechanism, each display of which includes a roller and/or a combined roller including two rollers internal to each other, held in the rest position by first elastic return means, at least one display is movable in rotation controlled by the movement of at least one lever whose fall is controlled or prohibited by at least one cam driven by a movement, and at least one trigger or correction lever is arranged to bearingly cooperate simultaneously with two cams towards which it is returned by second elastic return means.

Abstract: A system for fastening a horological movement of generally circular shape in a watch case, this fastening system including a casing ring wherein the horological movement is disposed, the casing ring extending between an upper portion and a lower portion, the horological movement being fastened in the lower portion of the casing ring using a first and a second fastening device disposed at two opposite ends of a diameter of the horological movement, at least a third fastening device, angularly offset relative to the first and second fastening device and fastened in the upper portion of the casing ring, allowing the horological movement to be blocked in the casing ring.

Abstract: A method for fabricating a timepiece component made of conductive material includes: making a base from conductive material; coating the base with a first layer of sacrificial metal protection material; etching a recessed decoration mechanically or with a laser; coating the first recessed decoration and the remaining part of the first layer with a second metal and/or coloured decorative treatment layer; and removing each first sacrificial metal protection layer by chemical devices, to obtain a blank including a first decoration formed by the remaining part of the second layer.

Abstract: 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.

Abstract: A spiral spring for a horological resonator mechanism, including a flexible strip (2) coiled on itself into several turns The spring (1) including an element for adjusting its stiffness, which includes a first elongate flexible element (5), and a second elongate flexible element (15) arranged in series with the strip (2), each elongate flexible element (5) connecting the same end (4) of the strip (2) to a fixed support (11), so as to add an additional stiffness to the strip (2), each elongate flexible element (5) preferably having a stiffness higher than that of the strip (2). A prestressing element (6) applies at least two different adjustable efforts, the two efforts being applied on the first elongate flexible element (5) so as to make the stiffness of the first elongate flexible element (5) vary according to the prestress level.

Abstract: A press for driving a crystal or a bezel into a watch case middle, including a support designed to hold the middle in position, and a bracket supporting a tool-holder to which a tool is attached, the tool-holder being movable in translation and cooperating with a handling member so as to slide relative to the bracket along an axis A-A when solicited by the handling member, the support including at least two jaws intended to cooperate with the middle so as to ensure that it is held in position, each jaw being movable in a plane P orthogonal to the axis A-A.

Abstract: A Dewar device for mechanical and/or functional components of a watch, the device being provided with a bracelet and a casing including an enclosure wherein a case of the watch can be disposed so that a crystal of the case is arranged opposite a crystal of all the elements of the casing defining this enclosure and at least one fastening device fastening the watch case in the enclosure of the casing by keeping it remote from all the elements of the casing defining this enclosure, the Dewar device including a device for actuating at least one push button by rotating a pivoting bezel of the casing.

Abstract: A Dewar device for mechanical and/or functional components of a watch, this device including a wristlet, a case including a chamber wherein a case of the watch is capable of being disposed in such a way that a glass of this case is arranged facing a glass of a set of elements of the case defining this chamber, at least one fastening device fastening this watch case in this chamber of the case while maintaining it distant from all of the elements of the case defining this chamber, and a device for actuating at least one push button by the angular movement of a free end of at least one lever element of this device relative to the case, this at least one lever element having another end movably fastened to this case.

Abstract: A dewar device (1) for mechanical and/or functional components (2) of a watch (3), the device (1) being provided with a bracelet and a casing (4) including an enclosure (5) wherein it is possible to arrange a case (6) of the watch (3) and at least one reversible connecting element (7) fixing the watch (3) case (6) in the enclosure (5) of the casing (4) while keeping it remote from all the elements (10a, 10b, 10c) of the casing (4) defining this enclosure (5), the at least one reversible connecting element (7) being provided with a body forming a structure (8) including at least one recessed area (9).

Abstract: A watch (10) including a case (11) including a middle (12) to which a crystal (13) and a transparent back (14) are fastened so as to form an internal volume. The watch includes a horological movement (15) housed within the internal volume of the case (11), including a carrying structure through which extends an arbor (16) adapted to be rotated by the horological movement (15) and carrying, at one of the ends thereof, opposite the crystal (13), a time value indicator (17), and at the other end, opposite the back (14), a disc (18) on which extends a pattern (181) facing a graphical representation (142), the pattern (181) and the graphical representation (142) being shaped such that, when the arbor (16) is rotating, they cooperate with one another to generate a sequential animation by moiré effect, formed by a sequence of at least two distinct images.

Abstract: A clockwork column selector mechanism, including a mobile with columns protruding above a base surface separated by clearances, forming slots along a profile, arranged to, in certain positions of the mobile, enable the insertion of a feeler-spindle into a clearance in a transverse direction substantially normal to the profile and parallel to the reference surface, and to, in other positions of the mobile, stop a feeler-spindle on a transverse surface of a column, at least one column including an intermediate transverse stopping surface constituting a stop bearing surface of a feeler-spindle and enable a partial insertion of a feeler-spindle in the thickness of one the slot, and which is located, in a transverse direction, between the geometric envelopes of two end transverse surfaces transversely delimiting this column.

Abstract: A dial for a timepiece, preferably a watch, the dial being provided with a relief portion which is made as an assembly of pieces on different levels, juxtaposed on a base, such that the relief portion is formed by the upper surfaces of the pieces. A method for manufacturing the dial with several separate pieces, the upper surfaces of the pieces being subjected to a polishing step and/or possibly an enamelling step. The pieces are then cut along a defined contour and then assembled edge-to-edge on a base, so as to create the relief portion.

Abstract: A wristlet clasp (100), of the folding buckle type, including first and second hinged blades (1, 2) between a closed wearing position and at least one open position, the first blade carrying a member for fastening a first wristlet strand, the second lower blade being connected to a loop (3) at its second end, the loop defining a passage for a second wristlet strand and carrying a stud (31) intended to be inserted into an adapted hole in the wristlet strand to define a point for anchoring the latter to the clasp. A locking member (12) holds the first and second blades in their closed position. A carriage (4) is connected to the second end of the second blade and slides in the loop switching from first and second indexed positions to define at least two predefined positions associated with a predefined useful length of the wristlet.

Abstract: A support element (100, 200) for a timepiece (10) or a piece of jewellery including a receiving surface (111) configured to be at least partly in direct contact with the timepiece (10), or piece of jewellery, the support element (100, 200) including a peripheral portion (110) carrying the receiving surface (111), and a central portion (120, 220) formed by a block of material, the support element (100, 200) including an internal cavity (130, 230) forming a recess of the central portion (120, 220); the internal cavity defining a volume configured to receive and hold in position an object (140) inside the support element (100, 200).