Abstract: 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.

Abstract: The invention relates to an oscillator comprising a pivoting staff connected to a mechanical energy source, an inertia-elasticity resonator formed in one piece, which is mounted on the pivoting staff, a detent escapement comprising a single-piece detent fixed to the pivoting staff, which comprises at least one flexible blade and a stop member arranged to elastically lock the pivoting staff in relation to a concentric escapement toothing, wherein the release element is arranged to elastically unlock the stop member in relation to the concentric escapement toothing, by the movement of the member forming the inertia, so that the pivoting staff counts each oscillation of the resonator while transmitting to it the energy able to maintain it.

Abstract: The invention relates to a method for fabrication of a one-piece, silicon-based component of simple shape offering the illusion of faceting and/or chamfering for forming all or part of the exterior part of a timepiece.

Abstract: The invention relates to a method for fabrication of a one-piece, metal-based component of simple shape offering the illusion of faceting and/or chamfering for forming all or part of the exterior part of a timepiece.

Abstract: The invention relates to a method for fabrication of a one-piece, silicon-based component of simple shape offering the illusion of faceting and/or chamfering for forming all or part of the exterior part of a timepiece.

Abstract: The invention relates to an oscillator comprising a pivoting staff connected to a mechanical energy source, an inertia-elasticity resonator formed in one piece, which is mounted on the pivoting staff, a detent escapement comprising a single-piece detent fixed to the pivoting staff, which comprises at least one flexible blade and a stop member arranged to elastically lock the pivoting staff in relation to a concentric escapement toothing, wherein the release element is arranged to elastically unlock the stop member in relation to the concentric escapement toothing, by the movement of the member forming the inertia, so that the pivoting staff counts each oscillation of the resonator while transmitting to it the energy able to maintain it.

Abstract: The invention relates to a timepiece component with a part including at least one face with a geometry capable of ensuring that the part is fitted in an isostatic configuration onto a member to improve the welding thereof.

Abstract: The invention relates to a fabrication method including an assembly step for inserting an intermediate part intended to ensure the flatness of the face to be welded.

Abstract: The invention relates to a method for fabrication of a part intended to be welded comprising a step for forming an oblique wall between two perpendicular surfaces capable of reducing the contact surface of the face to be welded.

Abstract: The invention relates to a method for fabrication of a part intended to be welded comprising a final machining step capable of reducing the contact surface of the face to be welded.

Abstract: The invention relates to a timepiece component with a part comprising elastic attachment means and securing means arranged to be welded enabling the attachment of the elastic means to be decoupled from the securing means to ensure the welding of the timepiece component.

Abstract: The invention relates to a fabrication method for a part intended to be welded comprising a burnishing step for forming a perpendicular wall with respect to the surface undergoing burnishing intended to improve the flatness of the face to be welded.

Abstract: A method of fabricating a micromechanical part in a single-piece made of a synthetic carbon-allotrope includes forming a substrate which includes the negative cavity for the micromechanical part to be fabricated, coating the negative cavity of the substrate with a layer of the synthetic carbon allotrope in a thickness of between 0.2 ?m and 20 ?m, the thickness being less than the depth of the negative cavity, removing from the substrate a larger thickness than the thickness of the deposited layer, so as to leave a limited thickness of the layer of material in the negative cavity, and removing the substrate so as to release the single-piece micromechanical part formed in the negative cavity comprising an external surface of comparable roughness to that of the substrate.

Abstract: The invention relates to an oscillator comprising a resonator of the inertia-elasticity type cooperating with a detent escapement comprising a detent cooperating with an escape wheel. The resonator is in one-piece and includes an inertia member and a first flexible structure providing the elasticity and forming a virtual pivot axis of the resonator and the detent is in one-piece and includes an unlocking spring and a second flexible structure forming a virtual pivot axis of the detent.

Abstract: The invention relates to a double balance spring (21) including, made in a layer of silicon-based material (11), a first balance spring (23) coaxially mounted on a collet (13, 27), the collet (13, 27) including an extending part (9) that projects from said balance spring and which is made in a second layer of silicon-based material (5). According to the invention, said extending part extends (17) into a third layer (7) of silicon-based material coaxially with a second balance spring (25) so as to form a one-piece double balance spring (21) made of silicon-based materials. The invention also relates to a timepiece including a balance spring of this type and the method of manufacturing the same. The invention concerns the field of timepiece movements.

Abstract: The invention relates to an oscillator comprising a resonator of the inertia-elasticity type cooperating with a detent escapement comprising a detent cooperating with an escape wheel. The resonator is in one-piece and includes an inertia member and a first flexible structure providing the elasticity and forming a virtual pivot axis of the resonator and the detent is in one-piece and includes an unlocking spring and a second flexible structure forming a virtual pivot axis of the detent.

Abstract: A mainspring including a metallic strip wound on itself. The mainspring includes an excess thickness forming a bridle in one-piece with the strip.

Abstract: The invention relates to a one-piece composite micromechanical timepiece component including a first functional level including an impulse pin made of a first material arranged to cooperate with a member, the first functional level also including an electroformed portion made of a second metallic material partially overlapping the impulse pin and a second functional level including only the electroformed portion forming a roller also arranged to cooperate with the member.

Abstract: A compensating balance spring for a thermally compensated sprung balance resonator including a core formed from at least one non-metallic material. The core is partially coated with at least one layer which is moisture proof to render the balance spring less sensitive to climatic variations.

Abstract: An oscillating mechanism for a timepiece movement, including a first rigid element and a second rigid element, each one fixed on a different element of the movement and at least one of which is mobile relative to the other and pivots about an axis. The mechanism is monobloc and flexible with a variable geometry, and includes a first elastic restoring mechanism producing an elastic connection between the first rigid element and an intermediate rigid element, and a second elastic restoring mechanism producing an elastic connection between the intermediate element and the second rigid element, which all are coplanar according to one plane and configured to be deformed according to the plane.