The Swatch Group Research and Development Ltd

Dress Your Body Ag

G. Aliprandini

Other

Omega Sa

Michel Caillaud

Pascal Grossenbacher

Giuseppe Aliprandini

Stéphane Lauper

Julien Meier

Arlette-Elsa Emch

Alexandre Netuschill

A galvanic bath, containing: gold metal in the form of alkaline aurocyanide; organometallic components; a wetting agent; a complexing agent; free cyanide; copper metal in the form of copper II cyanide and potassium; and indium metal in the form of a complex indium metal, where the galvanic bath does not contain cadmium and zinc, and where the galvanic bath deposits a yellow gold alloy comprising gold, copper, and indium as main components.

Method of obtaining a yellow gold alloy deposition by galvanoplasty without using toxic metals or metalloids

The invention relates to an electrolytic deposition in the form of a gold alloy with a thickness of between 1 and 800 microns and which includes copper. According to the invention, the deposition includes indium as the third main compound. The invention concerns the field of electroplating methods.

The invention relates to a make-up solution for a galvanic bath comprising organometallic components, a wetting agent, a complexing agent and free cyanide, wherein the make-up solution further comprises copper in the form of copper II cyanide and potassium, and complex indium allowing, after addition of alkaline aurocyanide, to galvanically depositing a gold alloy.

The invention relates to a decorative part () including several stones () and a device (') for securing the stones () in relation to each other. According to the invention, the securing device (&#x2032;) includes a single electrodeposited base (&#x2032;) whose shape matches one part of the stones, thus allowing all the stones () to be attached in relation to each other without any stress, and the girdles () of the stones () are mounted edge-to-edge in relation to each other so that the single base is concealed. The invention also relates to the method for manufacturing a part () of this type.

Invisible set decorative part

The invention relates to an inlaid ceramic decoration () including a ceramic body () that has at least one recess () forming the pattern for a decoration (). According to the invention, said at least one recess is entirely filled by first and second electrically conductive layers () of approximately 50 nm and a metallic galvanic plating () so as to form a ceramic element () inlaid with at least one metallic decoration () with improved visual rendering. The invention also relates to the method of manufacturing the inlaid ceramic element. The invention concerns the field of decorated ceramic parts.

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Villers-le-Lac, France

Michel Caillaud