An adjustable timepiece assembly, including a base bar and an adjustable bar whose position is adjustable with respect to the base bar, parallel to a reference plane, the adjustable assembly includes a first part guided in rotation on a first pin integral with the base bar and which includes a first toothed sector meshing with a first adjustment pinion press fit in the base bar, and which is subjected to the return force exerted by a first return spring to take up play, and the adjustable bar is guided in rotation on a second pin integral with the first part, and includes a second toothed sector meshing with a second adjustment pinion press fit in the first part, the adjustable bar being subjected to the return force of a second return spring.

A method for structuring a decorative or technical pattern in the thickness of an object made of an at least partially transparent amorphous, semi-crystalline or crystalline material, wherein the object is made of an at least partially transparent material including a top surface and a bottom surface which extends away from the top surface. The top or bottom surfaces is provided with a mask defining an opening whose outline corresponds to the profile of the pattern to be structured, the mask covering the top or bottom surface at the positions which are not to be structured. The pattern is structured with a mono- or multicharged ion beam through the opening of the mask, wherein the mechanical properties of the mask are sufficient to prevent the ions of the ion beam from etching the top or bottom surface at the positions where this top or bottom surface is covered by the mask.

A mechanism for adjusting a timepiece bridge fixed to a structure, including, coaxial and able to move one with respect to the other by sliding and/or rotation on a common axis, and returned one towards the other by an elastic return or clamping means, a first component fixed to the structure and a second component fixed to the bridge, the first component including a first relief facing a second relief that the second component includes, the first relief and the second relief having variable cooperation depending on the relative angular position between the first component and the second component, each the particular relative angular position defining a particular distance between reference surfaces of the first component and the second component.

A device for assembly and alignment on a first bridge, particularly a timepiece movement plate, arranged in a first plane, the device including a second bridge arranged in a second plane, the second bridge being intended to carry a component, in particular a moving component of a timepiece resonator mechanism, the device including a device for aligning the second bridge on the first bridge, the alignment device including at least two bearing faces of the second bridge arranged orthogonally to the second plane in two different directions, the alignment device further including at least two movable adjustment pieces connected to the first bridge, the adjustment pieces each being configured to contact with one of the bearing faces to position the second bridge in a position on the first bridge, the movable pieces defining a plurality of positions of the second bridge on the first bridge.

A method for decorating a train wheel bridge including a jewel includes: a cutting step for forming a plurality of groove portions at a first surface of the train wheel bridge; a smoothing step for smoothening a top portion formed between the groove portions adjacent to each other; a roughening step for roughening a decorative portion including the groove portions and a smooth portion as a result of the smoothing step; and a drilling step for forming a jewel receiving hole extending from the first surface to a second surface on an opposite side to the first surface.

The present invention relates to a micromechanical timepiece (1) having a plurality of mutually secured functional sub-assemblies (1a, 1b) stacked in a direction (Z) to form a multistage assembly, characterised in that each functional sub-assembly (1a, 1b) consists of a single semiconductor material and is secured to another sub-assembly (1a, 1b) via bridges (5) made of said semiconductor material, and in that at least one sub-assembly (1a, 1b) comprises at least two portions (2, 3), said portions being movable relative to each other and relative to another sub-assembly (1a, 1b) to which at least one of said portions (2, 3) is secured via at least one deformable link integrally formed between said portions (2, 3). The invention also relates to a method for making such a timepiece.

A device for assembly and alignment on a first bridge, particularly a timepiece movement plate, arranged in a first plane, the device including a second bridge arranged in a second plane, the second bridge being intended to carry a component, in particular a moving component of a timepiece resonator mechanism, the device including a device for aligning the second bridge on the first bridge, the alignment device including at least two bearing faces of the second bridge arranged orthogonally to the second plane in two different directions, the alignment device further including at least two movable adjustment pieces connected to the first bridge, the adjustment pieces each being configured to contact with one of the bearing faces to position the second bridge in a position on the first bridge, the movable pieces defining a plurality of positions of the second bridge on the first bridge.

A method for structuring a decorative or technical pattern in the thickness of an object made of an at least partially transparent amorphous, semi-crystalline or crystalline material, wherein the object is made of an at least partially transparent material including a top surface and a bottom surface which extends away from the top surface. The top or bottom surfaces is provided with a mask defining an opening whose outline corresponds to the profile of the pattern to be structured, the mask covering the top or bottom surface at the positions which are not to be structured. The pattern is structured with a mono- or multicharged ion beam through the opening of the mask, wherein the mechanical properties of the mask are sufficient to prevent the ions of the ion beam from etching the top or bottom surface at the positions where this top or bottom surface is covered by the mask.

A method for structuring a decorative or technical pattern in the thickness of an object made of an at least partially transparent amorphous, semi-crystalline or crystalline material, wherein the object is made of an at least partially transparent material including a top surface and a bottom surface which extends away from the top surface. The top or bottom surfaces is provided with a mask defining an opening whose outline corresponds to the profile of the pattern to be structured, the mask covering the top or bottom surface at the positions which are not to be structured. The pattern is structured with a mono- or multicharged ion beam through the opening of the mask, wherein the mechanical properties of the mask are sufficient to prevent the ions of the ion beam from etching the top or bottom surface at the positions where this top or bottom surface is covered by the mask.

An adjustable timepiece assembly, including a base bar and an adjustable bar whose position is adjustable with respect to the base bar, parallel to a reference plane, the adjustable assembly includes a first part guided in rotation on a first pin integral with the base bar and which includes a first toothed sector meshing with a first adjustment pinion press fit in the base bar, and which is subjected to the return force exerted by a first return spring to take up play, and the adjustable bar is guided in rotation on a second pin integral with the first part, and includes a second toothed sector meshing with a second adjustment pinion press fit in the first part, the adjustable bar being subjected to the return force of a second return spring.