A wheel for an escapement system including a hub intended to be mounted with a staff for rotation therewith, the staff being intended to be subjected to a mechanical torque, a felloe, at least two arms extending from the hub to the felloe, and a toothing formed by a plurality of teeth. The wheel for the escapement system includes at least one recess on at least one of the faces thereof, the recess extending from the felloe to the hub.

The invention relates to a compacted and densified metal material having one or more phases formed of an agglomerate of grains, the cohesion of the material being provided by bridges formed between grains, said material having a relative density higher than or equal to 95% and preferably higher than or equal to 98%.

The invention relates to a compacted and densified metal material having one or more phases formed of an agglomerate of grains, the cohesion of the material being provided by bridges formed between grains, said material having a relative density higher than or equal to 95% and preferably higher than or equal to 98%.

A clockwork module (100) including (i) a mobile part (11) including a first functional part and a second functional part (11a, 11b) and an arbor (15), (ii) a spring (13), (iii) a casing (14) including a housing (140), (iv) a first guide surface (14a, 140a) in the housing (140), (v) a first stop (140b) in the housing, (vi) a second stop (16b) arranged on the mobile part (11), the arbor (15) being guided by the first guide surface, the spring being arranged in the housing between the first and second stops.

A clockwork module (100) including (i) a mobile part (11) including a first functional part and a second functional part (11a, 11b) and an arbor (15), (ii) a spring (13), (iii) a casing (14) including a housing (140), (iv) a first guide surface (14a, 140a) in the housing (140), (v) a first stop (140b) in the housing, (vi) a second stop (16b) arranged on the mobile part (11), the arbor (15) being guided by the first guide surface, the spring being arranged in the housing between the first and second stops.

The invention concerns a timepiece component containing a high-entropy alloy, the high-entropy alloy containing between 4 and 13 main alloying elements forming a single solid solution, the high-entropy alloy having a concentration of each main alloying element comprised between 1 and 55 at. %.

The invention concerns a timepiece component containing a high-entropy alloy, the high-entropy alloy containing between 4 and 13 main alloying elements forming a single solid solution, the high-entropy alloy having a concentration of each main alloying element comprised between 1 and 55 at. %.

By configuring a timepiece component to include an intermediate film provided on at least a portion of a surface of a base material formed by using a nonconductive first material as a main component and to include a buffer film stacked on the intermediate film and mainly composed of a second material having a tenacity higher than that of the first material, the timepiece component may be manufactured with high precision, the weight thereof may be reduced, and even when the base material is formed by using a brittle material such as silicon, the timepiece component becomes resistant to breakage and capable of exhibiting high strength when an impact is externally applied.

By configuring a timepiece component to include an intermediate film provided on at least a portion of a surface of a base material formed by using a nonconductive first material as a main component and to include a buffer film stacked on the intermediate film and mainly composed of a second material having a tenacity higher than that of the first material, the timepiece component may be manufactured with high precision, the weight thereof may be reduced, and even when the base material is formed by using a brittle material such as silicon, the timepiece component becomes resistant to breakage and capable of exhibiting high strength when an impact is externally applied.

A paramagnetic stainless steel with a chemical composition including by weight: 26≤Cr≤40%, 5≤Ni≤20%, 0≤Mn≤5%, 0≤Al≤5%, 0≤Mo≤3%, 0≤Cu≤2%, 0≤Si≤5%, 0≤Ti≤1%, 0≤Nb≤1%, 0≤C≤0.1%, 0≤N≤0.1%, 0≤S≤0.5%, 0≤P≤0.1%, the remainder consisting of iron and any impurities each having a content less than or equal to 0.5%, the steel having a hardness HV10 between 500 and 900. It also relates to a part particularly a horological component made of this steel and to the process for manufacturing the part.