The method makes it possible to produce a decorated element (1) for a timepiece or piece of jewellery. This decorated element may be, for example, a watch dial. The method includes the steps of taking a base substrate, and micromachining on said base substrate a mould or decorative partitions (6) in a programmed pattern, and filling the mould or the decorative partitions with at least one filler material (7) to obtain the decorated element. The filler material may be an epoxy resin and the mould or the partitions are obtained by melting and solidifying a solder paste or powder.