Inlaid timepiece component and method for manufacturing the same

1 . An inlaid timepiece component including a body made of a metallic and/or ceramic material including a least one hollow forming the impression of a decoration, wherein said at least one hollow is completely filled with successive strata formed by an agglomeration of particles via a cold spray in order to form a timepiece component inlaid with at least one decoration,

wherein each of the at least one decoration is covered by a metal layer coloured by means of an anodisation.

2 . The inlaid timepiece component according to claim 1 , wherein the particles forming the successive strata are metallic or ceramic and are selected from among: copper, zinc, tin, titanium, niobium, zirconium, tantalum, chromium, iron, zirconia or alumina.

3 . The inlaid timepiece component according to claim 1 , wherein each at least one hollow has a minimum depth of 200 82 m.

4 . The inlaid timepiece component according to claim 1 , wherein the timepiece component is an external part element including one of: a bezel, a back, a dial, a middle, a wristlet link, a crown, or a push-piece.

5 . A timepiece comprising at least one inlaid timepiece component in accordance with claim 4 .

6 . A method for manufacturing an inlaid timepiece component comprising the following steps:

a) forming a body made of a metallic and/or ceramic material;

b) engraving at least one hollow in a face of the body, each of at least one hollow forming an impression of a decoration;

c) depositing a first stratum of a coating over a thickness of at least 10 μm over the entire face including said at least one hollow by a process of cold projection of a flow comprising a carrier gas and particles forming said coating;

d) repeating step c) once or several times to deposit one or more additional strata of 20 μm each over the entire face including said at least one hollow covered with the first stratum in order to completely fill said at least one hollow and form an inlaid decoration;

e) performing a polishing to remove all deposits of the strata off the surface of the body in order to leave them only in the at least one hollow; and

f) covering each of the decorations with a metal layer coloured by means of an anodisation.

7 . The method according to claim 6 , wherein the flow of the carrier gas has a flow rate comprised between 85 and 90 m 3 /h, at a pressure comprised between 45 and 60 bar and at a temperature comprised between 900 and 1,000° C.

8 . The method according to claim 7 , wherein the particles are made of metal, metal alloy, or ceramic.

9 . The method according to claim 7 , wherein the mass flow rate of the particles is from 70 to 80 g/min.

10 . The method according to claim 7 , wherein a size of the particles is at most 45 μm.

11 . The method according to claim 7 , wherein a size of the particles is comprised between 1 and 25 μm.

12 . The method according to claim 7 , further comprising a step between step b) and c) during which the hollow is engraved or textured via a laser to improve the adhesion of the particles.