Component especially for horology with surface topology and method for manufacturing the same

A timepiece comprising a component intended to be in friction contact with another component, said component being coated with an electrically conductive layer in one piece at least partially covering every surface of the component, the friction occurring on at least one of these surfaces, called the functional surface, said functional surface being surrounded by a plurality of side surfaces, the component having on its functional surface a texture formed of peaks separated by a series of troughs coated with said electrically conductive layer, said troughs each extending between two side surfaces of the component, wherein, at an end of manufacturing the component, the electronically conductive layer is configured such that the troughs of the texture are coated with the electrically conductive layer and the peaks are not coated such that the electrically conductive layer remains in one piece over the entire component despite wear caused by friction on the functional surface.

A method for manufacturing a component, wherein the method comprises the following steps:

• (a) providing a blank,
• (b) machining a side on said blank, by a deep reactive ion etching process to produce the component, said machined side having a scalloped texture inherent to the deep reactive ion etching process, said texture defining on the machined side peaks separated by a set of troughs,
• (c) depositing an electrically conductive layer on each of the surfaces of the component including in the troughs, wherein at an end of the depositing, the peaks are not coated by the electrically conductive layer.