BigPatents India

This ceramic element, the visible surface of which includes features, is intended to be fitted onto a watch case. This visible surface (1a) has, at each feature, a hollow (2) having the shape of said feature, with a depth at least equal to 0.05mm, the side walls (2a) of said hollow being essentially perpendicular to said visible surface, the bottom of said hollows (2) having a first tie layer (3) of Ti, Ta, Cr or Th type, with a thickness of at least 100nm and at least a second layer from the group Au, Ag, CrN, Ni, Pt, TiN, ZrN, Pd or alloys thereof with a thickness of at least 100 nm.