Method for fabricating a metal decoration on a dial and dial obtained by this method

A method for fabricating at least one metal decoration on a substrate made of insulating material having a domed surface, the method comprising:

• (a) depositing onto a ceramic, sapphire, mother of pearl, glass, quartz, diamond, mineral material, polymer, composite, or enamel substrate a first adhesion layer, comprising Ti, Ta, Cr, or Th, then, onto the first adhesion layer, a second electrically conductive layer, comprising Au, Pt, Ag, Cr, Pd, TiN, CrN, ZrN, or Ni, by vapor phase deposition;
• (b) depositing a third adhesion layer, comprising SixNy, onto the second electrically conductive layer;
• (c) applying a photosensitive resin layer on the third adhesion layer;
• (d) irradiating the resin layer through a mask defining a contour of desired decoration(s);
• (e) dissolving non-irradiated areas of the photosensitive resin layer to reveal, in places, the third adhesion layer where the decoration(s) are located;
• (f) removing the third adhesion layer where the decoration(s) are located, to reveal the second conductive layer;
• (g) electrodepositing a first metal or metal alloy, starting from the second electrically conductive surface, to form at least one unit that substantially reaches an upper surface of the photosensitive resin;
• (h) plasma etching to thereby remove the remaining resin layer;
• and
• (i) wet etching to thereby remove the first adhesion layer, second electrically conductive layer, and third adhesion layer.