A method for manufacturing at least a part of a timepiece is disclosed. The method comprises a first step of assembling flat layers together to from a substantially flat multilayer structure, Wherein at least a first layer of said layers is designed to form one flexible blade in the timepiece. Then, the multilayer structure is deployed in a direction substantially normal to the flat layers. Then at least one mass is fixed to the flexible blade, the mass being more rigid than the flexible blade.

Method for press-rolling a mainspring, from a wire comprising a pre-formed eye, utilising a roller press comprising a first support and guide means exerting a force on the wire in a first contact area located between a second and a third contact area comprised in a second and a third support and guide means, in order to wind, beyond the eye, an accumulation area with an opposite curvature to that of the eye, and wherein, as the wire advances, the position of the first contact area is gradually moved away from the second and third contact areas, to vary the press-rolling radius from a first minimum value to a second maximum value at a neck junction between the accumulation area and the eye.

A method for producing a timepiece spring includes a step for producing, by casting, a metallic glass raw material constituted of a metallic glass; a step for heating the metallic glass raw material to achieve a superplastic state; and a step for rolling the metallic glass raw material in a superplastic state to produce a sheet material. A timepiece spring is characterized by being obtained by the method for producing a timepiece spring.

A method for manufacturing a mechanism comprises the steps of: i) assembling flat layers together to form a substantially flat multilayer structure; ii) deploying the multilayer structure in a direction substantially normal to the flat layers. At least a first layer of said layers forms a flexible blade in the mechanism. The blade is fixed, in the mechanism, to a mass. The mass is more rigid than the blade. The blade is fixed to the mass in a step subsequent to step ii). This method can in particular be used to manufacture all or part of a mechanism such as a timepiece movement.

Method for press-rolling a mainspring, from a wire comprising a pre-formed eye, utilizing a roller press comprising a first support and guide means exerting a force on the wire in a first contact area located between a second and a third contact area comprised in a second and a third support and guide means, in order to wind, beyond the eye, an accumulation area with an opposite curvature to that of the eye, and wherein, as the wire advances, the position of the first contact area is gradually moved away from the second and third contact areas, to vary the press-rolling radius from a first minimum value to a second maximum value at a neck junction between the accumulation area and the eye.

A method for orienting a timepiece component including ferromagnetic material, where, on both ends of this component, two magnetic fields each attract it onto a pole piece, with an unbalance in the intensity of these fields around this component, in order to create a differential in the forces thereon and to press one of these ends onto a contact surface of one of the pole pieces, and to hold the other end at a distance from the other pole piece. A magnetic pivot includes such a component with two ends. It includes a guide device with surfaces of two pole pieces each generating a magnetic field attracting one of these ends, the magnetic forces exerted on the two ends being of different intensity, in order to attract only one end into contact with only one of these pole piece surfaces.

A method of manufacturing an external timepiece component, including: a metallic base made of a first material including titanium and/or a first titanium alloy; at least one metallic cover plate made of a second material, this second material including a second metal selected from among gold and platinum and palladium, and/or a second alloy including at least gold or platinum or palladium, this at least one cover plate being of a thickness greater than or equal to 0.5 millimeters; the at least one cover plate is welded to the base to form a bimetallic blank; and the bimetallic blank is shaped and/or machined to give the structural component its final form.

The manufacturing method comprises at least one processing step for a carbon-carbon composite part (100, 200). In a first variant, the method comprises steps for machining and a step for processing the part. In a second variant, the method comprises a crushing step for the part before the processing step and a moulding step after the processing step. Application to manufacturing timepiece components (170, 270).

A method of manufacturing a ceramic element for a timepiece is provided, including forming a body made of oxide-based ceramic; exposing at least one portion of the external surface of the body to a reduction reaction, to remove oxygen atoms to a predetermined depth in order to make the at least one portion electrically conductive; depositing a metallic material starting from the at least one electrically conductive portion; and machining the body and/or the metallic material in order to provide the element with an aesthetic finish.

A method for manufacturing a timepiece component. The method includes: providing a timepiece component (1); breaking the timepiece component (1) into a plurality of pieces (10); and depositing the pieces (10) on a support (2) and creating a desired pattern to be reassembled having interstices (1). The support (2) is then transferred into a mould and a preform (3) is placed on the pieces (10). The assembly is then heated to a temperature higher than the vitreous transition temperature of the preform (3) and a force is applied on the preform to fill the interstices (11) and obtain a reassembled timepiece component (1). The assembly is then cooled below the vitreous transition temperature of the preform (3) to form the reassembled timepiece component (1) whereupon the timepiece component (1) is machined to the required dimensions.