Disclosed is a method including the following steps: a) providing a substrate including a first silicon layer, a second silicon layer and an intermediate silicon oxide layer therebetween; b) etching the first silicon layer in order to form the timepiece components therein; c) releasing from the substrate a wafer formed by at least all or part of the etched, first silicon layer and including the timepiece components; d) thermally oxidizing and then deoxidizing the timepiece components; e) forming by thermal oxidation or deposition a silicon oxide layer on the timepiece components; f) detaching the timepiece components from the wafer.

The method for manufacturing timepiece hairsprings according to the invention comprises the following successive steps: a) forming hairsprings in a wafer, b) forming a thermal compensation layer on the hairsprings, c) identifying the hairsprings having a stiffness within a predetermined range, d) optionally, detaching from the wafer the hairsprings identified in step c), e) modifying the other hairsprings so that the stiffness of at least some of them is within the predetermined range, f) detaching from the wafer these other hairsprings and, if they have not been detached in step d), the hairsprings identified in step c). This method makes it possible to reduce manufacturing dispersions between the hairsprings.

A method for manufacturing a timepiece element, such as an applique, to be mounted on a timepiece component, such as a dial of a timepiece, includes producing a blank of the timepiece element from an injection overmoulding of injectable material into a cavity of a mould. The cavity is defined by the association of at least one impression of a first part of the mould with a second part of the mould including an inlet orifice of the cavity for injecting the material into the cavity. The method also includes finishing the timepiece element including applying a coating on the blank of the timepiece element overmoulded on the second part, and withdrawing the finished timepiece element from the second part, which includes breaking an injection point connecting the timepiece element to the second part in preparation for mounting thereof on the timepiece component.

A device (30, 40) for the transfer of a plurality of watch components (2) arranged on a first support (10) to their arrangement on a second support (20), wherein it comprises an inlet surface (31, 41) comprising inlet orifices (33, 43) so arranged as to correspond to a first arrangement of the watch components (2) on a first support (10), an outlet surface (32, 42) comprising outlet orifices (34, 44) so arranged as to correspond to a second arrangement of the watch components (2) on a second support (20), and guide elements (35, 45) adapted to guide the watch components (2) automatically from the inlet orifices (33, 43) to the outlet orifices (34, 44).

Method for manufacturing by photolithography a resin multilayer mould (10; 10) including a cavity (11; 11) provided with an inlet (110; 110) for the manufacture of a horological component, including producing at least two resin layers of the mould (10; 10), by producing a first resin layer (C10; C20) having a first through-opening or open opening (111; 111) oriented in the direction of the inlet (110; 110) of the mould to delimit a first volume of the cavity (11; 11) of the mould (10, 10), and producing a second resin layer (C20; C30) including a rigid film and having a second through-opening (112; 112) that delimits a second volume of the cavity (11; 11) of the mould (10, 10) and is at least partly superposed on the first through-opening or open opening (111; 111), the second resin layer partly covering that same first through-opening or open opening (111; 111).

Disclosed is a method including: a) obtaining a substrate extending in a predetermined plane with a first layer parallel to the plane; b) forming a through-hole in the first layer; c) depositing a second layer on the first, the second layer filling the a through-hole to form a bridge of material; d) etching a hairspring in an etching layer made up of the second layer or the substrate, the one of the second layer and the substrate in which the a hairspring is not etched constituting a support, the bridge of material connecting the hairspring to the support perpendicular to the predetermined plane; e) removing the first layer, the hairspring remaining attached to the support by the bridge of material; f) subjecting the hairspring to a thermal treatment; and g) detaching the hairspring from the support.

A component intended to be in friction contact with another component, the component being coated with an electrically conductive layer in one piece, at least partially covering every surface of the component, the friction occurring on at least one of these surfaces, called the functional surface, the functional surface being surrounded by a plurality of side surfaces, the component having on its functional surface a texture formed of a succession of troughs coated with the electrically conductive layer, the troughs each extending between two side surfaces such that the electrically conductive layer remains in one piece over the component despite the wear caused by friction on the functional surface. The invention also relates to the method for manufacturing the component by the DRIE (deep reactive ion etching) process, wherein surface defects on the sides machined by the DRIE process are used to form the troughs.

A method for manufacturing a balance spring intended to equip a balance of a horological movement, including a step of producing a blank made of a NbZr alloy including between 10 and 30 wt % Zr, a step of annealing and cooling the blank, at least one step of deforming the annealed blank in order to form a wire, wherein, before the deformation step, a step of depositing, on the blank, a layer of a ductile material chosen from copper, nickel, cupronickel, cupro-manganese, gold, silver, nickel-phosphorus NiP and nickel-boron NiB, in order to facilitate the wire shaping operation, the thickness of the ductile material layer deposited being chosen such that the ratio of the area of ductile material to the area of the alloy for a given wire cross-section is less than 1, preferably less than 0.5, and more preferably lies in the range 0.01 to 0.4.

A method that is for manufacturing a timepiece provided with a personalized decoration, visible in particular when the timepiece is worn, includes constructing the timepiece and producing the personalized decoration on all or part of a body of the timepiece. Producing the personalized decoration includes selecting from a human-machine interface of an electronic device a single portion of a reference digital graphical representation, in particular of an ephemeral reference digital graphic representation, and applying a coating of decorative material on all or part of the body of the timepiece as a function of the descriptive characteristics of the selected single portion.

The invention relates to a dial for a timepiece including a support and a mother-of-pearl sheet, the mother-of-pearl sheet having a front face and a rear face facing said support and on which a pattern has been printed. The mother-of-pearl sheet has a thickness between 50 m and 100 m so that the pattern printed on the rear face of the mother-of-pearl sheet appears transparently through the mother-of-pearl under normal conditions of illumination.