The system (10) for fixing a timepiece movement (2) to a watch case (30) element (3) comprises at least one clamp (1), in particular at least two clamps, preferably three clamps or four clamps, which is intended to come into contact firstly with the movement and secondly with the watch case element, the at least one clamp being made of a superelastic alloy and/or of a shape memory alloy, particularly of a nickel-titanium alloy such as Nitinol.

The present invention relates to a shock-absorber device for a wheel arbor of a micromechanical device comprising a support which includes a turning-arbor delimited by a rim defining a housing into which a pivot module is inserted, wherein this pivot module comprises a setting having a central orifice into which is inserted a bored stone, wherein an endstone (34) is placed on top of the bored stone, wherein the shock-absorber device also comprises a spring ring arranged between the support and the pivot module, wherein the shock-absorber device is equipped with a bayonet system for mounting the spring ring, wherein this bayonet system comprises a peripheral shoulder under which is formed a circular groove which defines a holding area, wherein the spring ring is equipped on an outer periphery with at least one catch, wherein at least one first notch which leads to the circular groove is provided in the peripheral shoulder, such that it is simply necessary to present the spring ring in such a way that the catch is engaged in the corresponding first notch, and then pivoting the spring ring so as to enable the catch to slide inside the circular groove, under the peripheral shoulder, wherein at least one second notch is machined in the peripheral shoulder, such that the catch is interlocked in this second notch, ensuring the angular pivot locking of the spring ring.

A case including a case main body, a first exterior case which is arranged around an outer circumferential portion of the case main body, and a second exterior case which includes an impact receiving portion that is opposed to an inner circumferential portion of at least one of an upper part and a lower part of the first exterior case, and is attached to at least one of the upper part and the lower part of the first exterior case.

A shock absorber device for an arbor of a timepiece element includes a support including a base cup surmounted by a peripheral rim delimited, opposite the cup, by an upper surface and including an outer wall, the cup and the rim defining together a housing. The shock absorber device further includes a pivot module extending along an axis, the pivot module being arranged inside the housing and being able to cooperate with the arbor. The shock absorber device further includes fastening device including a peripheral shoulder extending from the rim towards the axial center of the cup, and elastic device being arranged between the pivot module and the shoulder to exert a stress on the pivot module.

According to one embodiment, a device includes: a case body including a cylindrical peripheral wall portion; a cover frame provided on one side of the peripheral wall portion of the case body and having an opening; a cover plate formed to have a plate shape and arranged in the opening of the cover frame; and an vibration plate joined to the cover plate by a third joining member, wherein the vibration plate and the cover plate are spaced apart from each other, with the third joining member interposed.

A device for attachment of a timepiece movement to a watch case, including a peripheral attachment element of the movement positioned in abutment on an axial bearing surface of the case. The device includes thermoformed studs integral with the case having a mushroom shape at an end thereof providing an axial retaining surface acting as a rivet to hold the peripheral attachment element of the movement against the axial bearing surface of the case.