Abstract: A timepiece including a device for opening a cover including a fixed pendant mounted inside a middle part and a movable pendant for sliding within the fixed pendant towards the center of the case, the movable pendant having a guide element for moving along an axial guide groove, then in a circumferential guide groove into which the axial guide groove opens out and which is delimited by a boundary, such that, when the movable pendant is pushed, this movable pendant can be firstly displaced axially, then pivoted by an angle defined by the place at which the guide element abuts against the boundary, the movable pendant having a helical groove which comes into contact with at least one pin arranged with a clearance between the movable pendant and the locking spring and which is axially displaced towards the locking spring when the movable pendant is pushed, then pivoted, such that the pin presses against the locking spring and releases the cover.

Abstract: An annular rotating bezel system to be rotatably mounted on a case middle of a watch case inside which is housed a timepiece movement which extends in a plane, including a rotating bezel, an annular holding ring, a toothed ring, and a spring ring which extends in a plane in which it is capable of deforming elastically along a radius, the spring ring cooperating elastically with the toothed ring, the toothed ring and the spring ring being held in an axial direction perpendicular to the plane of the movement in the bezel by the annular holding ring, either the toothed ring or the spring ring being arranged to be angularly joined to the rotating bezel, and the other being arranged to be angularly joined to the case middle, wherein the spring ring has a thinned portion to increase the flexibility of the spring ring in its plane, the thinned portion having a tooth elastically and radially meshed with the toothed ring.

Abstract: A rotating resonator mechanism (60) including a flexible guide (5) and an oscillating mass (2), the flexible guide (5) including two main flexible strips (4, 6) and a rigid portion (7). The flexible strips are joined to the rigid portion and the oscillating mass. An adjustment means adjusts the stiffness of the resonator mechanism, and includes a flexible element connected to the rigid portion and to a fixed support (11), so that the flexible guide (5) is suspended by the flexible element (12), the flexible guide (5) and the flexible element (12) extending substantially in the same plane so that the oscillating mass (2) performs a rotating movement about a virtual pivot. The adjustment means also includes pre-stressing means (15) to apply a variable force or torque on the flexible element (12) or the flexible guide (5), to vary the stiffness of the flexible element (12).

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 Dewar device is for mechanical and/or functional components of a watch. The device is provided with a wristlet and a casing. The casing includes a chamber in which a case of the watch is capable of being arranged in a removable manner, and a device for reversible fastening by magnetic levitation of the watch case in the chamber configuring a separation between the case and the set of the elements of the casing forming the chamber.

Abstract: An isothermal clock 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 said watch is capable of being arranged and a reversible fastening device fastening the case of a watch in the enclosure of the casing by keeping it away from the set of elements of the casing defining this enclosure, the fastening device including at least two connecting members each connected to an attachment area of the case from at least one telescopic bar.

Abstract: 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.

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 spiral spring, in particular for a horological resonator mechanism, the spiral spring (30) extending substantially in a plane, the spiral spring (30) including a flexible strip (2) coiled on itself in a plurality of turns, the strip (2) having a predefined rigidity, the spiral spring (30) including means for adjusting its rigidity, wherein the adjustment means comprise a flexible element (5) in direct contact with the strip (2), the flexible element (5) preferably having a rigidity greater than that of the strip (2), the adjustment means including prestressing means (6) for applying a variable force or torque to the flexible element (5) so as to vary the rigidity of the flexible element (5).

Abstract: An annular retaining ring for a rotating bezel system, intended to cooperate with an external cylindrical surface of a case middle part of a watch case to allow rotation of the rotating bezel on the case middle, the annular ring including a device for guiding rotation of the rotating bezel around the case middle; wherein the annular ring further includes a device configured to brake rotation of the rotating bezel around the case middle and to dampen sound.

Abstract: A clasp for a watch bracelet including a cover connected on a first side to a first bracelet strand and on a second side to a second bracelet strand, a connection between the second bracelet strand and the cover of the clasp, the connection including a connecting link sliding in a longitudinal direction of the clasp between a first position and a second position. The clasp includes at least one first and one second bars mounted in the cover, and the connecting link includes a lever provided with a hook capable of moving from a first position wherein the hook is engaged with a first bar integral with the cover of the clasp, into a second position wherein the hook is released from the engagement thereof with the first bar and the link is free to slide so as to engage the second bar with a hook.

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).

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 timepiece and a tool to separate a back from a middle, which jointly delimit a watch case of this timepiece, inside which a horological movement is housed, this tool having the appearance of a wedge, i.e. an acute-shaped part formed by a first face and a second face which intersect at an angle of less than 90° and which are connected to one another by a rounded portion, the first face of the tool being oriented such that it extends parallel to a mean plane wherein the horological movement is located when an horologist engages this tool between the back and the middle in order to separate this back from this middle, the rounded portion being connected to the second face by a curved portion, the curvature whereof is directed towards the inside of a surface delimited by the first and second faces.

Abstract: An adjustable timepiece assembly, including a base bar and an adjustable bar whose position is adjustable with respect to the base bar, parallel to a reference plane, the adjustable assembly includes a first part guided in rotation on a first pin integral with the base bar and which includes a first toothed sector meshing with a first adjustment pinion press fit in the base bar, and which is subjected to the return force exerted by a first return spring to take up play, and the adjustable bar is guided in rotation on a second pin integral with the first part, and includes a second toothed sector meshing with a second adjustment pinion press fit in the first part, the adjustable bar being subjected to the return force of a second return spring.

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: An annular rotating bezel system intended to be rotatably mounted on a middle part of a watch case inside which is housed a timepiece movement which extends in a plane, including a rotating bezel, an annular holding ring, a toothed ring, and at least one elastic arm of which a free end is elastically and radially meshed with the toothed ring, said toothed ring and said at least one elastic arm being held in an axial direction perpendicular to the plane of the movement in the bezel by the annular holding ring, either the toothed ring or the elastic arm being arranged to be angularly joined to the rotating bezel, and other being arranged to be angularly joined to the case middle; wherein the elastic arm is formed of a flat strip-spring mounted in a cantilever arrangement in the system.

Abstract: A component for the internal parts or the movement for a timepiece or a piece of jewellery including a substrate partially coated with a black layer and decorated with at least one stone, the black layer including carbon nanotubes or aluminium oxide, the substrate being at least devoid of the black layer on the portion facing the stone. It also relates to the method for manufacturing this component for the timepiece or the piece of jewellery.

Abstract: Acoustic timepiece display mechanism with a chronograph repeater for the acoustic display, by a striking mechanism, of a duration measured by a chronograph mechanism, this striking mechanism including a winding lever for driving a rack to move a striking rack in order to read the magnitude concerned and to release a corresponding strike function, this acoustic display mechanism includes, between the mechanism controlling the chronograph mechanism and the winding lever, a mechanical connection arranged, depending on the position of a control cam of the chronograph mechanism indirectly defining a variable secondary direction of the winding lever, to isolate or not to isolate the winding lever from a winding pusher operated in a single pusher direction by a user to set off the acoustic display of the timed duration.

Abstract: An annular rotating bezel system includes a rotating bezel, a toothed ring having a toothing provided with a plurality of teeth regularly distributed over an edge of the toothed ring, and a spring ring which extends in a plane in which it is capable of deforming elastically along a radius. The spring ring cooperates elastically with the toothed ring. The spring ring includes at least two lugs, each lug being configured to be elastically and radially engaged with the toothing of the toothed ring in at least one position of the bezel. At least two lugs are offset from each other by an offset angle, the or each offset angle between two successive lugs having a value different from an integer sub-multiple of 360 degrees, such that, in each position of the bezel, only one lug is elastically and radially engaged with the toothing of the toothed ring.