A method for manufacturing a mold for a horology component, comprising at least the following steps: - Manufacturing (E1) a first structure from a first photosensitive resin comprising at least one layer of photosensitive resin comprising a first pattern obtained by polymerizing the first photosensitive resin by irradiation through at least one mask , then developing said first photosensitive resin; - Transforming (E2) the first structure into a second structure by structuring at least one surface of the first structure by the addition of a second photosensitive resin to said at least one surface, said second structure being intended to at least partially form a manufacturing mold for said horology component, this step consisting in transforming (E2) the first structure comprising the following steps: o Applying (E21) a layer of the second photosensitive resin on at least part of the at least one surface of the first structure; o Performing two-photon polymerization (E22) on the second photosensitive resin in order to obtain three-dimensional polymerization according to a second pattern, using a photon device which comprises an objective which is at least partially immersed in the second resin to direct and focus a beam on voxels that define the shape or the geometry of the second pattern; o Developing (E23) in order to eliminate the non-polymerized second photosensitive resin and obtain the second structure of a form defined by the first and second patterns. - Manufacturing (E1) a first structure from a first photosensitive resin comprising at least one layer of photosensitive resin comprising a first pattern obtained by polymerizing the first photosensitive resin by irradiation through at least one mask , then developing said first photosensitive resin; - Transforming (E2) the first structure into a second structure by structuring at least one surface of the first structure by the addition of a second photosensitive resin to said at least one surface, said second structure being intended to at least partially form a manufacturing mold for said horology component, this step consisting in transforming (E2) the first structure comprising the following steps: o Applying (E21) a layer of the second photosensitive resin on at least part of the at least one surface of the first structure; o Performing two-photon polymerization (E22) on the second photosensitive resin in order to obtain three-dimensional polymerization according to a second pattern, using a photon device which comprises an objective which is at least partially immersed in the second resin to direct and focus a beam on voxels that define the shape or the geometry of the second pattern; o Developing (E23) in order to eliminate the non-polymerized second photosensitive resin and obtain the second structure of a form defined by the first and second patterns. o Applying (E21) a layer of the second photosensitive resin on at least part of the at least one surface of the first structure; o Performing two-photon polymerization (E22) on the second photosensitive resin in order to obtain three-dimensional polymerization according to a second pattern, using a photon device which comprises an objective which is at least partially immersed in the second resin to direct and focus a beam on voxels that define the shape or the geometry of the second pattern; o Developing (E23) in order to eliminate the non-polymerized second photosensitive resin and obtain the second structure of a form defined by the first and second patterns. <EOS>