A functional micromechanical timepiece assembly including at least a first component, including a first layer defining a first contact surface configured to come into friction contact with a second contact surface defined by a second layer, the second layer belonging, either to the first component, or to at least a second micromechanical component forming the assembly with the first component. The first and second layers each include carbon with at least 50% carbon atoms and, on the first and second contact surfaces, the layers have different surface crystalline plane orientations from each other.

A functional micromechanical timepiece assembly including at least a first component, including a first layer defining a first contact surface configured to come into friction contact with a second contact surface defined by a second layer, the second layer belonging, either to the first component, or to at least a second micromechanical component forming the assembly with the first component. The first and second layers each include carbon with at least 50% carbon atoms and, on the first and second contact surfaces, the layers have different surface crystalline plane orientations from each other.

A timepiece component includes a first silicon-based or ceramic-based part, and a second metal-based part. One surface of the first part is directly welded using laser-type electromagnetic radiation onto a surface of the second part in order to secure the parts without addition of material. A method for fabrication of a timepiece component for a timepiece includes forming a first silicon-based or ceramic-based part and a second metal-based part, mounting a surface of the first part on a surface of the second part, and welding, using laser-type electromagnetic radiation, the surface of the first part mounted directly on the surface of the second part, in order to secure the parts to each other without addition of material.

A timepiece component includes a first silicon-based or ceramic-based part, and a second metal-based part. One surface of the first part is directly welded using laser-type electromagnetic radiation onto a surface of the second part in order to secure the parts without addition of material. A method for fabrication of a timepiece component for a timepiece includes forming a first silicon-based or ceramic-based part and a second metal-based part, mounting a surface of the first part on a surface of the second part, and welding, using laser-type electromagnetic radiation, the surface of the first part mounted directly on the surface of the second part, in order to secure the parts to each other without addition of material.

The present invention relates to a shock-absorbing device for a staff of a wheel set of a timepiece arranged on a support, wherein said support is provided with an at least partially through slot for a pivot element cooperating with a pivot shank of the staff of the wheel set to be inserted therein, wherein said device additionally comprises a spring means comprising at least a first blade and a second blade.

A method for manufacturing a component in a substrate including: a) modifying a structure of at least one region of the substrate to make the at least one region more selective; and b) chemically etching the at least one region to selectively manufacture the component.

A method for manufacturing a component in a substrate including: a) modifying a structure of at least one region of the substrate to make the at least one region more selective; and b) chemically etching the at least one region to selectively manufacture the component.

Timepiece oscillator, comprising a sprung balance assembly including a balance with a rim, which is returned by a balance spring and pivoted with respect to a structure, on a first side by a torsion wire, fixed by an anchoring element to the structure, and on a second side, opposite to the first side, by a contactless magnetic pivot, the balance comprising a first pole embedded with the balance and the torsion wire, this first pole having a symmetry with respect to the axis of the sprung balance assembly, and cooperating with a second pole comprised in the structure, for the magnetic suspension of the first pole, and to exert on the distal end of the torsion wire, opposite to this anchoring element, a magnetic force for tensioning the torsion wire.

Timepiece oscillator, comprising a sprung balance assembly including a balance with a rim, which is returned by a balance spring and pivoted with respect to a structure, on a first side by a torsion wire, fixed by an anchoring element to the structure, and on a second side, opposite to the first side, by a contactless magnetic pivot, the balance comprising a first pole embedded with the balance and the torsion wire, this first pole having a symmetry with respect to the axis of the sprung balance assembly, and cooperating with a second pole comprised in the structure, for the magnetic suspension of the first pole, and to exert on the distal end of the torsion wire, opposite to this anchoring element, a magnetic force for tensioning the torsion wire.

The device for pivoting an arbor about a determined axis includes at least one magnetic bearing including a magnet which exerts a force of attraction on a pivot, made of magnetic material, of the arbor. Further, the bearing includes a magnetic flux centring structure arranged between the magnet and the pivot, and a support for the centring structure. This centring structure includes a peripheral portion and a central portion resiliently connected to the peripheral portion by at least one connecting element, the central portion being formed of a highly magnetically permeable material and having smaller dimensions than those of the magnet. The peripheral portion is rigidly force fitted to the support so that the central portion is centred on the pivot axis.