A timepiece (100) including a case (10) including a middle (1), the top part whereof is closed by a bezel (2) and the bottom part whereof is closed by a back (3), a horological movement (4) mounted against the middle (1) by means of a casing ring (5), wherein the casing ring (5) comprises at least two clippable parts (50, 51) which hold the horological movement (4), the two parts being inseparable once mounted against the middle (1) when closing the case (10) of the timepiece (100).

Method of assembling a timepiece comprising a watch movement and a water-resistant case, the method comprising: a first stage of closing the case by fitting and securing a first case element, more particularly a back, and then a second stage of closing the case by actuation of a second case element, more particularly a stem, in particular a winding stem or a valve stem or a push-button stem, the second case element being mobile between a first configuration, in which a fluid communication between the interior of the case and an environment outside the case is permitted, and a second configuration, in which the fluid communication between the interior of the case and the environment outside the case is limited, the second stage of closing being an actuation of the passage of the second element from the first configuration to the second configuration.

A shock-absorber and/or vibration-absorber device is proposed, comprising at least one flexible element able to deform under the effect of a stress; said device being remarkable in that it includes at least one so-called dissipative layer made from a material having a shear modulus lower than the shear modulus of the flexible element, a shock-absorbing factor greater than the shock-absorbing factor of said flexible element, and at least partially secured to said flexible element such that a flexion of the flexible element, under the effect of a stress, provides shearing of the dissipative layer making it possible to dissipate at least part of the energy from said stress. A method for manufacturing said shock-absorber device is also disclosed.

A system for fastening a horological movement of generally circular shape in a watch case, this fastening system including a casing ring wherein the horological movement is disposed, the casing ring extending between an upper portion and a lower portion, the horological movement being fastened in the lower portion of the casing ring using a first and a second fastening device disposed at two opposite ends of a diameter of the horological movement, at least a third fastening device, angularly offset relative to the first and second fastening device and fastened in the upper portion of the casing ring, allowing the horological movement to be blocked in the casing ring.

A system for fastening a horological movement of generally circular shape in a watch case, this fastening system including a casing ring wherein the horological movement is disposed, the casing ring extending between an upper portion and a lower portion, the horological movement being fastened in the lower portion of the casing ring using a first and a second fastening device disposed at two opposite ends of a diameter of the horological movement, at least a third fastening device, angularly offset relative to the first and second fastening device and fastened in the upper portion of the casing ring, allowing the horological movement to be blocked in the casing ring.

A resilient casing ring (200) for casing a horological movement (10) inside a watch case (100) including a middle (110). The casing ring (200) includes an annular body (205) with a central axis (Z), and fastening tabs (210) carried by the annular body (205) and cooperating with the middle (110) to form a bayonet casing system (300) by rotation of the resilient casing ring (200) relative to the middle (110) about the central axis (Z), between an insertion position and a locked position. The casing ring (200) includes resilient retaining element cooperating with the horological movement (10) and exerting an axial force parallel to the central axis (Z) on the horological movement (10) by elastic deformation of the resilient retaining element when the resilient casing ring (200) is in the locked position in the middle (110).

A resilient casing ring (200) for casing a horological movement (10) inside a watch case (100) including a middle (110). The casing ring (200) includes an annular body (205) with a central axis (Z), and fastening tabs (210) carried by the annular body (205) and cooperating with the middle (110) to form a bayonet casing system (300) by rotation of the resilient casing ring (200) relative to the middle (110) about the central axis (Z), between an insertion position and a locked position. The casing ring (200) includes resilient retaining element cooperating with the horological movement (10) and exerting an axial force parallel to the central axis (Z) on the horological movement (10) by elastic deformation of the resilient retaining element when the resilient casing ring (200) is in the locked position in the middle (110).

The system (10) for fixing a timepiece movement (2) to a watch case (30) element (3) includes 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, and a device (2a; 3a) for modifying the stiffness of the at least one clamp, particularly for modifying the bending stiffness of the at least one clamp, when the movement is fixed and/or displaced relative to the watch case element.

The system (10) for fixing a timepiece movement (2) to a watch case (30) element (3) includes 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, and a device (2a; 3a) for modifying the stiffness of the at least one clamp, particularly for modifying the bending stiffness of the at least one clamp, when the movement is fixed and/or displaced relative to the watch case element.

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.