The invention relates to a watch glass which comprises a support glass having at least one recess; a cover glass; at least one gemstone which is at least in part disposed in the recess; and a connecting intermediate layer by way of which the cover glass and the support glass are connected to one another. A region of an upper par of the gemstone is in direct contact with the intermediate layer. The invention furthermore relates to a watch having a watch glass of this type as well as to a method for producing a watch glass of this type.

The process for manufacturing a timepiece component (10) including at least one fastening element (12), includes positioning at least one fastening element (12) within a manufacturing mould (20) by means of at least one guide element (25; 35), filling the manufacturing mould (20) with a material so as to overmould, i.e. at least partially envelop and set, the at least one fastening element (12) in the material, and removing the timepiece component (10) from the manufacturing mould (20), this timepiece component (10) being at least partly formed by the material and the at least one fastening element (12).

A setting including an open elastic ring carrying elements for setting a decorative element, the setting being arranged to be placed in a radially compressed state inside a hollow provided in a substrate of an article to be decorated.

Some implementations can include a wristwatch comprising a case having a bezel, and a plurality of semispherical recesses formed in a facial surface of the bezel. The wristwatch can include a plurality of spherical elements, wherein each spherical element is disposed in a respective semispherical recess, and a plurality of inner false prongs formed on the bezel and disposed along an inner circumference of the bezel between pairs of semispherical recesses. The wristwatch can further include a plurality of outer false prongs formed on the bezel and disposed along an outer circumference of the bezel between pairs of semispherical recesses and in radial alignment with corresponding inner false prongs.

A miniature, self-powered, user-powered lighting device, employing mechanical energy storage and incorporating miniature lighting elements which are illuminated on-demand for a limited duration for backlighting or illumination purposes without the need for a battery or other electro-chemical storage device. The device comprising a manual spring loading mechanism, a spiral spring, a manual trigger mechanism, a transmission for increasing the rotational speed, a miniature generator, and at least one light source.

A method for assembling a stone on a setting support, the stone being cut to exhibit a table, a crown, a girdle and a pavilion. A substrate with a recess for the stone, the recess forming, between the substrate and the stone, a peripheral free space in the vicinity of the girdle and of the zones of the crown and of the pavilion contiguous to the girdle, the peripheral free space including a bottom having a conductive surface. Electroplating, in the peripheral free space, a metal layer in the vicinity of the girdle and of the zones of the crown and of the pavilion contiguous to the girdle, so as to confine the girdle in the metal layer to form, around the girdle, the setting support. The stone and its setting support are released from the substrate.

A method for assembling a stone on to a mounting, the stone being cut to have a crown, a girdle and a pavilion, the method including providing a substrate including an adhesive layer; positioning the stone on the adhesive layer; heating the adhesive layer; exerting a pressure on the stone; positioning a setting sheet around the stone above the adhesive layer, so as to form a peripheral free space between the setting sheet and the stone, at least at the level of the girdle and of areas of the crown and the pavilion adjacent to the girdle; depositing a metallic layer in the peripheral free space from the setting sheet, at least at the level of the girdle and of the areas of the crown and the pavilion adjacent to the girdle, the metallic layer and the setting sheet forming the mounting; releasing the stone and its mounting from the substrate.

A miniature, self-powered, user-powered lighting device, employing mechanical energy storage and incorporating miniature lighting elements which are illuminated on-demand for a limited duration for backlighting or illumination purposes without the need for a battery or other electro-chemical storage device. The device comprising a manual spring loading mechanism, a spiral spring, a manual trigger mechanism, a transmission for increasing the rotational speed, a miniature generator, and at least one light source.

A dial for a timepiece, preferably a watch, the dial being provided with a relief portion which is made as an assembly of pieces on different levels, juxtaposed on a base, such that the relief portion is formed by the upper surfaces of the pieces. A method for manufacturing the dial with several separate pieces, the upper surfaces of the pieces being subjected to a polishing step and/or possibly an enameling step. The pieces are then cut along a defined contour and then assembled edge-to-edge on a base, so as to create the relief portion.

A decorative piece including a support made of a material having no plastic deformation in which at least one hollow is arranged. The hollow is filled with a first material forming a substrate in which at least one housing is arranged, the at least one housing configured so that at least one aesthetic element can be housed therein.