An ornamental part, for example for a timepiece, jewellery or telephone, in particular a watch case middle, and its manufacturing method, the part at least partly including a hard material having a Vickers hardness greater than 1000 HV, the method including the following main steps: a step of producing a precursor from a mixture of at least one powder material with a binder, a step of injecting the precursor into a mould in order to form a green body, a step of sintering the green body in order to form a body of the future part from the hard material, and a step of depositing a polymer material coating on one face of the part, the deposition being carried out by moulding on the body, in particular by injection into a mould, the coating and the hard material being inseparable.

An external part including a substrate and a coating composed of the following successively superimposed layers; an opaque or semi-opaque reflective layer, configured to have a reflectance of at least 90% for wavelengths including between 600 nm and 780 nm, a transparent or semi-transparent layer, having a refractive index to include between 1.45 and 2.8 for a wavelength of 630 nm, an absorbent layer, the layers giving the coating a predetermined interference colour.

A sand based jewelry and methods of making sand based jewelry is provided. The jewelry having a quantity of sand mixed with a quantity of binding medium. The binding medium and sand mixture are capable of being solidified and mounted to a jewelry setting. The jewelry setting attached to a jewelry item.

A magnetized body wear is configured to be worn on a body part of a user, for example, worn on the wrist or ankle of the feet. The magnetized body wear comprises multiple magnetized spheres coated with a covering material, where the magnetized spheres are removably attached to each other to define a closed loop. One selected pair of the magnetized spheres is detached to open the closed loop and to allow the attached magnetized spheres to be worn and attached around the body part. The closed looped magnetized spheres worn on the body part optimizes bodily conditions of the user.

The present invention relates generally to jewelry articles comprising a substrate and a metallic, external coating.

A method for manufacturing a watch component (2) having a coloured enamelled plating (10), including the following steps: providing a substrate (20) chosen among materials capable of withstanding an enamel firing temperature; preparing (22) a coloured enamel composition constituting the coloured enamel plating of the watch component (2), the step (22) involving the encapsulation (24) of colour pigments in transparent protective shells made of inorganic material and the mixing (25) of the encapsulated colour pigments with an enamel preparation; applying (27) at least one layer of prepared coloured enamel composition to a receiving zone (8) on the substrate; and firing (28) the layer of coloured enamel composition comprised in the receiving zone (8).

A method for manufacturing an external part (10) including the steps of: producing a substrate (11) having a cavity (110); producing, by moulding, a decorative element (12) made of a transparent polymer material having a reflective particle filler, wherein the decorative element (12) is formed so as to have at least one decorative head (120) connected to an anchoring foot (121); and fastening the decorative element (12) in the cavity (110) so that the anchoring foot (121) cooperates with the cavity in a form-fitting manner.

A trim component (10) including a substrate (11) having a trim face (110) and including a decorative area (12, 13), a first portion (111) of the trim face (110) being defined by the decorative area (12, 13), the remainder of the trim face (110) defining a second portion (112) of the trim face (110), the first portion (111) of the trim face (110) having a refractive index different from that of the second portion (112) of the trim face (110), the whole of the the trim face (110) being covered with a transparent and/or translucent coating (14) with a thickness of between 5 nm and 1 m so as to give the trim face (110) interference colours, the colour of the first and second portions (111, 112) of the trim face (110) being different.

A temporary filling device for an inner diameter of a ring and its application method, belonging to the field of jewelry repair technology. The specially designed ring holder and clamping pad in this invention can stably fix the ring, ensuring that the application of shadowless adhesive and the ultraviolet curing process proceed smoothly. Shadowless adhesive is used as the filling material, which has good flexibility and adhesion. After curing, it will not leave any trace or affect the appearance, maintaining the original look of the ring. Overall, this invention simplifies the traditional process of adjusting ring sizes, improves operational efficiency and accuracy, while also maintaining aesthetic appeal and appearance quality. It has a wide market prospect and commercial value in practical applications.

A method for manufacturing an external component of a watch, of a fashion item or of a jewellery item, including depositing an inner layer on all or part of the surface of an inner face of a substrate made of a transparent material, localised ablation of the inner layer, so as to conserve a part of the inner layer on a first portion of the inner face f the substrate, the ablation being performed so as to form at least one pocket opening onto a second portion of the inner face of the substrate and so as to structure the second portion of the inner fa of the substrate, treating the surface of the inner layer and of the second portion of the inner face of the substrate.