A method to permanently mark an item of laminated jewelry involves creating a laminate of two metals, and upper layer typically formed of a more precious metal such as gold, platinum or palladium that do not readily oxidize laminated onto the surface of a less precious metal, such as silver, which can be oxidized to create a dark color (e.g. black). A laser is used to create characters and/or designs in the upper layer by vaporizing portions thereof to effectively remove those portions. This exposes the upper surface of the less precious metal that does become oxidized. An oxidizer, such as liquid sulfur, is then used to blacken the silver, typically a dark gray. However, if more contrast is needed by making the marked text, designs etc. darker than gray a second step can be used by applying an additional oxidizing agent to turn the dark gray to substantially black.

Provided is a jewelry ring comprising a substrate, a first coating of a metallic nitride or a metallic boride, and an external metallic coating. Also provided is a metallic article comprising a substrate comprising tungsten carbide, cobalt, tungsten, titanium, titanium carbide, zirconium, tantalum or aluminum; a first coating of a metallic nitride or a metallic boride; and an external metallic coating. A method for making a jewelry ring comprising a substrate, a first coating of a metallic nitride or a metallic boride, and an external metallic coating is additionally provided. Further provided is a method for making a metallic article comprising a substrate comprising tungsten carbide, cobalt, tungsten, titanium, titanium carbide, zirconium, tantalum or aluminum; a first coating of a metallic nitride or a metallic boride; and an external metallic coating.

A timepiece (1) having at least one colored transparent stone (10), and a support (20) with at least one opening (200) for receiving this colored transparent stone (10). The ratio between the height (h) and width (L) of the colored transparent stone (10) is less than 50% , and the support (20) is made from anodised titanium or anodised aluminium. Advantageously, the color of the colored transparent stone (10) in the timepiece (1) is enhanced by that of the support (20).

The present invention relates generally to a coated jewelry article or a coated component of a jewelry article, comprising a jewelry article or a component of a jewelry article, a first metallic coating, and a second metallic coating.

A method for depositing a rare material in a thin layer at the surface of an horological or jewellery external part includes providing a rough part of rare material, shaping the rough part of rare material so that it is adapted to be used as a target part for a PVD method, depositing material of the target part at the surface of a substrate consisting of an horological or jewellery eternal part by a PVD method so as to cover the external part.

A fastener stringer includes a row of elements on which cured coating film is formed at sites where it is difficult to be coated by a roll coating method, preferably over the entire exposed surface, without incorporating any conductive wire in a fastener tape. A fastener stringer includes a row of elements and a fastener tape, at least one side edge of the fastener tape having insulation properties, the row of the elements being attached to the one side edge of the fastener tape, wherein each element includes a pair of leg portions and a head portion, the head portion having an engaging region for engaging with an opposing element when constructing a fastener chain, and wherein cured coating film is formed at least at a center portion in a front and back direction of the fastener tape on an end surface of the head portions.

The present invention relates to a method for manufacturing a part comprising at least one three-dimensional metallised pattern overlying a local enamel underlayer.

Articles including a nickel-free coating and methods for applying coatings are described herein.

The present invention relates generally to a coated jewelry article or a coated component of a jewelry article, comprising a jewelry article or a component of a jewelry article, a first metallic coating, and a second metallic coating.

A method for depositing a decorative and/or functional layer on at least a portion of a surface of a finished or semi-finished article made of a non-conductive ceramic material, this deposition method includes the following operations: subjecting the at least a portion of the surface of the article to a carburising or nitriding treatment during which carbon, respectively nitrogen atoms, diffuse in the at least a portion of the surface of the article, then depositing, by galvanic growth of a metallic material, the decorative and/or functional layer on at least a portion of the surface of the article which has undergone the carburising or nitriding treatment.