The Swatch Group Research and Development Ltd

Omega Sa

Montres Rado S.a.

Rubattel & Weyermann S.a.

Empa, Swiss Federal Laboratories for Materials Testing and Research

Rubbatel & Weyermann S.a.

Stewes Bourban

Yves Winkler

Alban Dubach

Gregory Kissling

Stephane Lauper

Pascal Grossenbacher

Lionel Blaser

Pierry Vuille

Nicolas Francois

Alexandre Netuschill

Jean-Claude Martin

Christian Verdon

Gilles Derriey

Agnes Marlot Doerr

Claire Rannoux

Simon Springer

Jean-Luc Bazin

Vladislav Spassov

Cyrille Gernez

Jean-François Dionne

Juliette Muller

Ahmad Odeh

Giancarlo Poli

Cecile Barron

Yann Caloz

Henning Luebbe

Joachim Grupp

Pierpasquale Tortora

Stéphane Lauper

Frederic Jeanrenaud

David Richard

Olga Reinauer

Frédéric Jeanrenaud

Nicolas François

Maria Fernandez Ciurleo

Milan Calic

Yann Fallet

Loïc Oberson

Brice Drieux

Pierre Sauret

Cécile Barron

Agnès Marlot Doerr

Roman Kubrin

Gurdial Blugan

Jakob Kuebler

Arnaud Actis-Datta

Nathalie Brebner-grupp

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.

Method for manufacturing a timepiece component

A method for fabrication of a composite component including a first material containing steel 316L and a second material containing zirconia powder formed in a single sintering. The method for fabrication includes:

Method for fabrication of a composite part

The invention relates to a timepiece component made of composite material including at least one reinforcement and one matrix, the reinforcement having a three-dimensional honeycomb structure with a plurality of cells into which the matrix is injected. The invention also concerns a method for manufacturing such a timepiece component.

Timepiece component made of composite material

A decorative item including an element made at least partly of a metallic, polymeric or ceramic based material and including a face visible to an observer, at least one light source external or internal to the element, the decorative item further includes at least one optical fibre embedded in the material of the element, the optical fibre serving as a guide for the light from the light source in order to produce, during use, a light effect on the visible face of the element. A method for manufacturing the decorative item is also disclosed.

Decorative item with a light effect

A piece, in particular for jewellery or timepieces, is made of a material comprising a synthetic matrix loaded with particles of a precious or semi-precious stone. The particles have a particle size d90 between 50 &#x3bc;m and 2 mm, preferably between 100 &#x3bc;m and 1 mm, and more preferably between 150 &#x3bc;m and 500 &#x3bc;m.

Material for timepiece and jewellery

A process for producing a part provided with an external element includes: providing an electrically conductive substrate having an upper surface and a raised pattern with a crest on the upper surface; depositing an electrically insulating layer onto the upper surface around the pattern to a thickness less than or equal to the distance between the crest and the upper surface; depositing a metal layer onto the crest by galvanic growth so that the metal layer partly rests on the insulating layer; dissolving the insulating layer; covering an assembly including the substrate and the metal layer with a mass of a base material of the part to form an imprint; separating the mass and the metal layer from the substrate, the mass then exhibiting an external element formed by a recess, the shape of which corresponds to the imprint and the base of which interfaces with the metal layer.

Process for the production of a timepiece provided with a hollow or raised external element

A decorative piece includes a support made of a material having no usable 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 housing is arranged so that at least one aesthetic element is housable therein. The substrate further includes a gripper elastically deforming to retain the aesthetic element in the housing. The gripper further includes at least one setting element. A method for setting an aesthetic element on a support includes taking a support provided with at least one hollow, taking at least one aesthetic element, filling the hollow with a first material, making a setting hole and a gripper in the first material, and setting the aesthetic element by placing it in the hole and by deforming the gripper so as to retain the aesthetic element.

Decorative piece produced by setting

External part for a timepiece or piece of jewellery, this external part being produced by means of a polymer matrix in which piezochromic molecules are dispersed that change from a first stable state to a second stable state while changing colour under the effect of applied pressure.

External part for a timepiece or piece of jewellery

The invention relates to a process for the production of a part provided with an external element comprising the following steps:

Process for the production of a timepiece provided with a raised external element

An exterior element for portable objects including a support, on which is arranged a first material, the first material being chosen to be capable of reflecting different visible wavelengths as a function of applied stress.

Variable colour exterior element

The present invention relates to a decorative piece comprising a support produced in a material which does not include plastic deformation and in which at least one hollow is provided, characterised in that said hollow being filled with a first material being an at least partially amorphous alloy forming a substrate in which at least one housing is provided, said at least one housing being designed so that at least one aesthetic element can be housed therein.

Decorative piece produced by setting on amorphous metal

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.

Method for crimping a stone

A method for assembling a stone on to a mounting includes sinking the stone into an adhesive layer on a substrate and then 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. Then, a metallic layer is deposited 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, such that the metallic layer and the setting sheet form the mounting.

Method for setting a stone

A polycrystalline ceramic solely formed based on alumina, on chromium oxide and on magnesium oxide, where the polycrystalline ceramic contains between 0.8% and 1.2% of chromium oxide by total weight of the polycrystalline ceramic and between 0.03% and 0.09% of magnesium oxide by total weight of the polycrystalline ceramic, making it possible to obtain a red ceramic with a toughness (K) at least equal to 2.8 MPa&#xb7;m.

Opaque red polycrystalline ceramic

The invention relates to a decorative piece comprising a plurality of stones and a device for fixing the stones relative to each other, the fixing device comprises a single base made of a first material which makes it possible to attach all the stones relative to each other by one of their faces, the kites of stones are mounted edge to edge relative to each other so that said single base is masked, characterised in that the first material is an at least partially amorphous alloy. The invention likewise relates to the method for manufacturing such a piece. The invention relates to the field of jewellery, gemstone articles or timepieces.

Decorative piece with invisible setting

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Chabrey, Switzerland

Stewes Bourban