Abstract: The invention concerns a strap or bracelet (1) including a first strand (2) and a second strand (3). The second strand (3) is connected to a clasp (1a) that includes a fastening device (13). The fastening device (13) joins the strands (2, 3) to each other. The invention is characterized in that the clasp (1a) further includes a safety device (17) for better joining the first strand (2) to the clasp (1a) by pressing the former onto the latter.

Abstract: System for connecting a bracelet to a watch case (18) by means of a link (10), the watch case (18) comprising a caseband (20) and a back cover (26), the link (10) comprising a first hollow element (12) and a second element (14) partly nesting in the first hollow element (12), the first hollow element (12) carrying a first means (28) of fastening to the watch case (18) and the second element (14) carrying a second means (30) of fastening to an adjacent bracelet link (16), characterized in that the watch case (18) includes a mechanical device arranged to pivot the first hollow element (12) so that said first hollow element (12) is pressed against the caseband (20) of the watch case (18).

Abstract: System for connecting a bracelet to a watch case by means of a link, the watch case comprising a caseband and a back cover, the link comprising a first hollow element and a second element partly nesting in the first hollow element, the first hollow element carrying a first means of fastening to the watch case and the second element carrying a second means of fastening to an adjacent bracelet link, characterized in that the watch case includes a mechanical device arranged to pivot the second element about a transverse axis to the longitudinal direction of the bracelet, the second element transmitting the pivoting motion thereof to the first element which pivots in turn and which is pressed against the caseband of the watch case.

Abstract: A timepiece movement including a tourbillon that has a rotating carriage bearing a sprung balance and an escapement. The carriage includes a top pivot and a bottom pivot, respectively carried by a top bridge and a bottom bridge of the carriage. The carriage pivots between a bottom plate of the timepiece movement and a bridge of the movement. The timepiece movement includes a stop member, arranged for limiting the axial shake of the carriage.

Abstract: Link for a wristwatch, characterized in that it comprises a central core connecting a lower wing and an upper wing.

Abstract: Link for a wristwatch, characterised in that it comprises a central core connecting a lower wing and an upper wing.

Abstract: The timepiece includes a stationary outer case (1) in which a pivoting inner case (10) is hinged in an inclined position via the action of a spring. The locking/unlocking mechanism is characterized in that it is formed by a mobile element of the external part that can be manipulated in the plane of the timepiece such as a rotating bezel (20) of the inner case (10) including a lug (22) that is engaged in a groove (2) of the outer case (1).

Abstract: The bracelet clasp includes first (1) and second (2) hinged arms and a cover (3). The clasp is provided with two push-pieces (15a and 15b). A safety device prevents the clasp opening when pressure (A-B) is simultaneously exerted both on a push-piece (15a) and on one side of the cover opposite said push-piece. This device may be a strut (70) provided with extended portions (72, 73) abutting on both sides of the first arm (1).

Abstract: The invention includes a device for securing a back cover on a middle part of a watchcase, characterized in that it includes an intermediate element to which the back cover is connected, the intermediate element being screwed onto the middle part of the watch, an element arranged to allow the back cover to drive the intermediate element in rotation until the latter reaches a locked position on the middle part, the back cover also being pivotable relative to the intermediate element without the latter being unscrewed for alignment with the 12 o'clock-6 o'clock axis of the watch.

Abstract: The invention comprises a timepiece including a middle part (4) and a bezel (6) capable of rotating on the middle part (4), the bezel (6) and the middle part (4) delimiting between them an annular chamber (38) in which there is arranged a sealing gasket (40) with a U-shaped profile. A compression member (42) such as an O-ring type joint with a smooth external surface is housed in the sealing gasket (40).

Abstract: The piece of jewellery comprises at least two rings (2, 4) that can nest inside each other and have different diameters. These rings are assembled to each other so as to pivot relative to each other. The piece of jewellery can thus pass from a configuration wherein the rings are tilted to a configuration wherein they are nesting, such that the surface of the smaller ring (2) is concealed. The piece of jewellery further comprises indexing means (26, 11c) comprising a stud (26) secured to one of the rings (2, 4) and which is arranged for cooperating with the edge (30) of an elongated aperture (11c) made in another ring (4), so as to immobilize the rings selectively in a plurality of relative positions.

Abstract: The invention concerns a device (1) for securing a strap or bracelet to an object, particularly a watchcase, including a bar (10) formed of a tube (13), in which are housed at least: a first piston (14), which is mobile in translation, and an elastic member that tends to drive said piston (14) towards the exterior of said tube (13), characterized in that said device (1) further includes a mechanism (20) for actuating said bar (10) including: a first bent arm (24) slidably mounted axially relative to said bar (10) between a retracted position A and a deployed position B, and one end of which cooperates with said first piston (14) to push the latter towards the interior of said tube (13), and a first control member (35) cooperating with said first arm (24) so as to move said arm from the retracted position A to the deployed position B and vice versa.

Abstract: The invention concerns a portable object (1). This portable object includes at least one transparent or semi-transparent decorative element (2) arranged and held on a support (6). The element takes the form and appearance of a precious stone. The portable object further includes a layer of luminescent material (10), arranged at least between one part of the support (6) and the decorative element (2) held on the support, to produce a visual effect through the element by reflection or refraction of the light passing therethrough.

Abstract: The invention concerns a strap or bracelet (1) including a first strand (2) and a second strand (3). The second strand (3) is connected to a clasp (1a) that includes a fastening device (13). The fastening device (13) joins the strands (2, 3) to each other. The invention is characterized in that the clasp (1a) further includes a safety device (17) for better joining the first strand (2) to the clasp (1a) by pressing the former onto the latter.

Abstract: The invention concerns a non-extending hinged bracelet including a plurality of links (6, 6?) hinged one after the other, each of the links including on one side a male hinge element and on the other side a female hinge element, the male hinge element of one link (6) being inserted in the female hinge element of the next link (6?) to form a hinge (1), said hinge elements being traversed by a pin forming the articulation of the hinge (1), a U-shaped part (14) which covers said hinge (1) including branches (16) which are engaged on either side of the hinge (1) and which have holes (18) in which the ends of the pin are engaged, said bracelet being characterized in that a cover (12) extending between two adjacent links (6, 6?) is arranged between the hinge (1) and the U-shaped part (14).