A timepiece resonator mechanism including a structure carrying, via a flexible suspension system, an anchor unit to which is suspended an inertia element oscillating with a first rotational degree of freedom RZ, under the action of return forces exerted by a flexure pivot including first elastic strips each fixed to the inertia element and to the anchor unit, the flexible suspension system being arranged to allow the anchor unit some mobility in every degree of freedom except the first rotational degree of freedom RZ wherein only the inertia element can move to avoid any disturbance to its oscillation, and the stiffness of the suspension system in the first rotational degree of freedom RZ is very considerably higher than the stiffness of the flexure pivot in this same rotational degree of freedom RZ.

A three-dimensional karussel- or tourbillon-type regulating member for a horological movement, the regulating member including a drive device provided with a barrel and a gear train, the regulating member including an inertial mass, elastic return device for the inertial mass, an escapement mechanism, an inner carriage capable of moving in rotation about a first axis of rotation, and an outer carriage capable of moving in rotation about a second axis of rotation, the inner carriage being housed inside the outer carriage, the inner carriage carrying the inertial mass, the elastic return device for the inertial mass and the escapement mechanism, and including a first ball bearing arranged to enable the outer carriage to rotate in the horological movement, with the first ball bearing being arranged at the periphery of the outer carriage.

A three-dimensional karussel- or tourbillon-type regulating member for a horological movement, the regulating member including a drive device provided with a barrel and a gear train, the regulating member including an inertial mass, elastic return device for the inertial mass, an escapement mechanism, an inner carriage capable of moving in rotation about a first axis of rotation, and an outer carriage capable of moving in rotation about a second axis of rotation, the inner carriage being housed inside the outer carriage, the inner carriage carrying the inertial mass, the elastic return device for the inertial mass and the escapement mechanism, and including a first ball bearing arranged to enable the outer carriage to rotate in the horological movement, with the first ball bearing being arranged at the periphery of the outer carriage.

The stem-crown of a water-resistant watch case includes a tubular stem inserted into a tubular opening of a middle part of the watch case, and a crown including a first portion connected in part to the stem and a second handling portion. The first portion includes an annular contact surface inclined at less than 90° with respect to a longitudinal central axis of the stem-crown starting from the first portion towards the outside of the second portion. In a rest position, the first portion is in contact against an annular receiving surface of the middle part of complementary shape to one end of the tubular opening towards the outside. The crown further includes a washer under a bearing part of the first portion and contacting the stem, being configured to bear in an annular slot of the middle part between the tubular opening and the annular receiving surface.

The stem-crown of a water-resistant watch case includes a tubular stem inserted into a tubular opening of a middle part of the watch case, and a crown including a first portion connected in part to the stem and a second handling portion. The first portion includes an annular contact surface inclined at less than 90° with respect to a longitudinal central axis of the stem-crown starting from the first portion towards the outside of the second portion. In a rest position, the first portion is in contact against an annular receiving surface of the middle part of complementary shape to one end of the tubular opening towards the outside. The crown further includes a washer under a bearing part of the first portion and contacting the stem, being configured to bear in an annular slot of the middle part between the tubular opening and the annular receiving surface.

A timepiece regulator includes a detached lever escapement mechanism and a resonator with a quality factor Q including an inertia element. An impulse pin is integral with an inertia element and cooperates with a fork of the lever. The inertia element is subjected to the action of an elastic return directly or indirectly fixed to the plate and arranged to cooperate indirectly with an escape wheel set included in the escapement mechanism. The resonator mechanism is a resonator with a virtual pivot rotating about a main axis, with a flexure bearing subjected to the return force of at least two flexible strips attached to the plate, defining together a virtual pivot with a main axis. The lever pivots about a secondary axis. The lever is made of silicon added to an arbor pivoted with respect to the plate.

Timepiece regulator comprising a detached lever escapement mechanism, and a resonator with a quality factor Q including at least one inertia element including an integral impulse pin cooperating with a fork of the lever, this inertia element being subjected to the action of elastic return means directly or indirectly fixed to the plate and being arranged to cooperate indirectly with an escape wheel set comprised in the escapement mechanism, this resonator mechanism is a resonator with a virtual pivot rotating about a main axis (DP), with a flexure bearing subjected to the return force of at least two flexible strips attached to the plate, defining together a virtual pivot with a main axis (DP), the lever pivoting about a secondary axis (DS), and the fork is enlarged in comparison to the fork of a conventional Swiss lever.

A timepiece resonator including an inertial element moveable in relation to a fixed structure, and suspended to a flexible guide including flexible strips crossed in projection on a plane XY at a single crossing zone ZC, each one deformable in a plane parallel to the plane XY each one extending in a ribbon on either side of a neutral surface perpendicular to the plane XY and joining the first recess with the structure and the second recess with the inertial element, and including at least one rib asymmetrical in relation to its neutral surface, and, at the crossing zone ZC, either each flexible strip does not include any rib, or each rib is asymmetrical in relation to its neutral surface.

A magnetic device for centring a shaft on a predetermined axis in a clockwork movement includes at least one first magnetic bearing provided with a magnet to exert an attractive force on a first ferromagnetic end pivot of the shaft. The first magnetic bearing includes a central part made of soft ferromagnetic material mounted between the magnet and the first end pivot of the shaft. The central part is positioned centrally in a washer made of non-magnetic material so as to centre the magnetic field flux generated by the permanent magnet through the central part in order to magnetically attract the first end pivot of the shaft on the predetermined axis. The diameter of the central part can be identical to, or 0 to 20% less than, or 0 to 20% greater than, the diameter of the first end pivot.

A magnetic device for centring a shaft on a predetermined axis in a clockwork movement includes at least one first magnetic bearing provided with a magnet to exert an attractive force on a first ferromagnetic end pivot of the shaft. The first magnetic bearing includes a central part made of soft ferromagnetic material mounted between the magnet and the first end pivot of the shaft. The central part is positioned centrally in a washer made of non-magnetic material so as to centre the magnetic field flux generated by the permanent magnet through the central part in order to magnetically attract the first end pivot of the shaft on the predetermined axis. The diameter of the central part can be identical to, or 0 to 20% less than, or 0 to 20% greater than, the diameter of the first end pivot.