Method for producing an external horological element (100) which is a heterogeneous component, according to which a primary cavity (10) is produced in a structure (1), only the periphery of this said primary cavity (10) is re-machined or laser machined, which primary cavity (10) is filled with a second material that is different in appearance from the first material in order to produce a primary insert (2), where the bottom of this said primary cavity (10) is left rough before being filled with said second material, and, in the thickness of this primary insert (2), a secondary cavity (20) is produced, which is filled with a third material that is different in appearance from the first material and/or from the second material in order to produce a secondary insert (3).

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 decorative item made from a moulded material having a density of between 2 and 7 g/cm.sup.3, wherein the moulded material includes by weight: 60 to 90% of a metallic or ceramic material having a density higher than or equal to 5 g/cm.sup.3, 10 to 32% of a plastic material including a thermoplastic resin and a coupling agent, 0 to 8% of a reinforcement, 0 to 3% of a pigment. Also, a method of manufacturing this decorative item by injection moulding.

A method for manufacturing metallic horological components includes the steps of forming a LIGA-UV type method a multi-level photosensitive resin mould and of galvanically depositing a layer of at least one metal using at least two conductive layers to form a block substantially reaching the top surface of the photosensitive resin.

Attachment systems for attaching a wearable electronic device to a user including a sizing band and a retaining band are disclosed. The sizing band includes at least one sizing eyelet and a band-insertable end. The retaining band includes at least a post for insertion into the sizing eyelet of the sizing band and a concealment aperture configured to receive the band-insertable end of the sizing band. On a bottom surface of the retaining band can be a recessed guide bed configured to guide the band-insertable end along the bottom surface of the retaining band. A wearable electronic device can couple to both the sizing band and the retaining band by accepting an end portion of each band into receiving channels extending into opposite sidewalls of the housing.

Provided are a printing jig for an inkjet-type printer and a method for manufacturing printed objects therewith, which jig can be easily produced in accordance with the shape and size of an object to be printed and allows the object to be accurately positioned relative to the printer. The printing jig supports an object to be printed, and is placed in an inkjet-type printer when the object is being printed. The printing jig includes a mounting surface on which the object is to be placed, and a positioning part for positioning the object. The positioning part includes a protrusion preformed on the mounting surface so as to be brought into contact with at least part of the object placed on the mounting surface. The protrusion is made of deposited and cured ink used by the inkjet-type printer.

Attachment systems for attaching a wearable electronic device to a user including a sizing band and a retaining band are disclosed. The sizing band includes at least one sizing eyelet and a band-insertable end. The retaining band includes at least a post for insertion into the sizing eyelet of the sizing band and a concealment aperture configured to receive the band-insertable end of the sizing band. On a bottom surface of the retaining band can be a recessed guide bed configured to guide the band-insertable end along the bottom surface of the retaining band. A wearable electronic device can couple to both the sizing band and the retaining band by accepting an end portion of each band into receiving channels extending into opposite sidewalls of the housing.

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.

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).

A piece of jewellery made from elastomer composite material, wherein the elastomer composite material includes a matrix made of elastomer in which between 0.5% and 4% by mass of cellulose fibres, between 0 and 2% by mass of an antibacterial additive, between 0 and 5% by mass of thermally conductive fillers, between 0 and 1% by mass of anti-odour agents, and between 0 and 1% by mass of silica are dispersed.