An elastic holding organ for fastening a timepiece component on a support element, including a rigid portion provided with an inner face including at least three deformable arms provided with free ends defining an opening into which the support element can be inserted, the arms being configured to perform a coupling with the support element by an elastic clamping in compression of this support element in the opening.

An elastic holding organ for fastening a timepiece component on a support element, including a rigid portion provided with an inner face including at least three deformable arms provided with free ends defining an opening into which the support element can be inserted, the arms being configured to perform a coupling with the support element by an elastic clamping in compression of this support element in the opening.

The invention concerns an oscillator for a timepiece movement, comprising a staff rigidly connected to a balance carrying first and second bipolar magnets spaced apart from the staff and capable, depending on the angular position of the balance, of being positioned alternately within range of a magnetic field produced by a fixed bipolar magnet, the latter being located on the trajectory of the first and second bipolar magnets and being arranged in such a way that, when one of the bipolar magnets approaches the fixed bipolar magnet, identical polarities are located opposite each other in order to produce a repulsive force. The oscillator further comprises a pallet assembly and an escape wheel for establishing a kinematic connection between a source of energy of the timepiece movement and the balance staff, and arranged in such a way that the balance is capable of having a sustained periodic oscillating movement of an amplitude greater than 90 degrees.

The invention concerns an oscillator for a timepiece movement, comprising a staff rigidly connected to a balance carrying first and second bipolar magnets spaced apart from the staff and capable, depending on the angular position of the balance, of being positioned alternately within range of a magnetic field produced by a fixed bipolar magnet, the latter being located on the trajectory of the first and second bipolar magnets and being arranged in such a way that, when one of the bipolar magnets approaches the fixed bipolar magnet, identical polarities are located opposite each other in order to produce a repulsive force. The oscillator further comprises a pallet assembly and an escape wheel for establishing a kinematic connection between a source of energy of the timepiece movement and the balance staff, and arranged in such a way that the balance is capable of having a sustained periodic oscillating movement of an amplitude greater than 90 degrees.

A timepiece component including a shaft-like portion including at least one pivot about a pivot axis, at least the material forming this shaft-like portion is a non-magnetic alloy containing at least silver and palladium and having a Vickers hardness of more than 450 HV.

A timepiece component including a shaft-like portion including at least one pivot about a pivot axis, at least the material forming this shaft-like portion is a non-magnetic alloy containing at least silver and palladium and having a Vickers hardness of more than 450 HV.

A component made of micromachinable material for a high quality factor resonator or escapement mechanism, with a core made of micromachinable material and/or coated with an oxide layer, and including, on this core or on this oxide layer an abrasion resistant layer including a contact surface cooperating with an opposing contact surface an which is a hydrophobic self-assembled monolayer of the alkylsilane and/or fluorinated or perfluorinated or polyperfluorinated type, with a low or zero sulphur content, and arranged to repel any wetting agent from the area of contact between the contact surface and the opposing contact surface.

A mechanical watch or measurement instrument having metallic parts, wherein each part of the mechanical watch mechanism has a relative magnetic permeability of less than 1.01.

A mechanical watch or measurement instrument having metallic parts, wherein each part of the mechanical watch mechanism has a relative magnetic permeability of less than 1.01.

A device for guiding a pivoting mass about an axis. A first support is fixed and a second support forms or supports the pivoting mass. The device is includes a first and second flexible leaf oriented in the same direction when the device is at rest, and an intermediate leaf having a rigidity notably greater than the flexible leaves and connecting the first flexible leaf to the second, the device including a first fixed link formed by the first support and a first end of the first leaf, a second fixed link formed by a second end of the first leaf and by a first end of the intermediate leaf, a third fixed link formed by a second end of the intermediate leaf and by a first end of the second leaf and a fourth fixed link formed by at least one second end of the second leaf, wherein the first and/or the fourth link is arranged substantially between the second and the third link in the direction when the device is at rest.