Abstract: A device (1) for fastening a bracelet (2) to a watch case (3), at two pairs of horns (4), by a female connecting element (5) secured to the case (3) of the watch and a male element (6) secured to one end (20, 21) of the bracelet, these elements being complementary cooperate by fitting one into the other, while forming removable assembly capable of making the bracelet interchangeable. The male element includes a rod (7) connected to an end (20, 21) of the bracelet, and extending on either side of the rod, a ball-pawl (8) and first (70) and second (80) cylindrical shouldered portions arranged concentrically around each ball-pawl, each ball-pawl and each cylindrical shouldered portion being arranged to cooperate respectively with blind housing (50) and groove (51) proximate to the blind housing, and forming the female connecting elements on inner areas of the two pairs of horns.

Abstract: The bezel (1) is interchangeable via a bayonet device. The shoulder (11) of the middle part (12) is provided with a circular groove (14) and at least two sinks (15) opening out partially into said groove (14). The bezel (1) includes at least two feet (2) positioned to engage in the sinks (15), said feet (2) each including a notch (4) open radially at the emergence of the sinks (15). A locking ring (20) provided with an outer member (21) for rotational manipulation, is positioned in the groove (14), one edge (23) of said ring (20) having a substantially equal thickness to the aperture of the notches (4) and including recesses (24) for the feet (2) to pass and the other edge (25) including a gorge (26) facing a gorge (16) of the middle part (12), the two gorges (16; 26) housing a click spring (30) of the ring (20).

Abstract: The bezel (1) is interchangeable via a bayonet device. The shoulder (11) of the middle part (12) is provided with a circular groove (14) and at least two sinks (15) opening out partially into said groove (14). The bezel (1) includes at least two feet (2) positioned to engage in the sinks (15), said feet (2) each including a notch (4) open radially at the emergence of the sinks (15). A locking ring (20) provided with an outer member (21) for rotational manipulation, is positioned in the groove (14), one edge (23) of said ring (20) having a substantially equal thickness to the aperture of the notches (4) and including recesses (24) for the feet (2) to pass and the other edge (25) including a gorge (26) facing a gorge (16) of the middle part (12), the two gorges (16; 26) housing a click spring (30) of the ring (20).

Abstract: Each wristband strand (10, 20) includes at least two studs (12, 14, . . . ) extending perpendicularly to the inner surface of said strand and is each pierced in its median part by a hole (12a, 14a, . . . ) of parallel axis to the strand, each side of the middle part includes recesses (15, 17, . . . ), complementary to the studs including through passages (15a, 17a, . . . ) on the back cover side and blind holes on the crystal side. The studs are fitted into recesses, and locked with U shaped parts (18,28) engaged on the back side cover through the through passages, the holes of the studs and the blind hole. If one desires, this assembly enables a portion of the middle part located at 6 o'clock and/or 12 o'clock to be left entirely free of any attaching means.

Abstract: The invention concerns a particular link structure (1) for a wristwatch including decorative elements made of hard materials such as ceramics. The sintering step carried out during manufacturing of these decorative elements increase the maximum uncertainties on their dimensions. The parts thereby obtained consequently do not have sufficiently precise dimensions to avoid the appearance of gaps at their common junctions. In order to overcome this drawback, the link (1) according to the invention includes a mechanical device (17, 26, 29, 34, 37, 53) allowing a precise adjustment to be made of the relative positions of these different decorative elements and consequently continuous junctions to be obtained between them.

Abstract: The invention concerns a particular link structure (1) for a wristwatch including decorative elements made of hard materials such as ceramics. The sintering step carried out during manufacturing of these decorative elements increase the maximum uncertainties on their dimensions. The parts thereby obtained consequently do not have sufficiently precise dimensions to avoid the appearance of gaps at their common junctions. In order to overcome this drawback, the link (1) according to the invention includes a mechanical device (17, 26, 29, 34, 37, 53) allowing a precise adjustment to be made of the relative positions of these different decorative elements and consequently continuous junctions to be obtained between them.

Abstract: Each wristband strand (10, 20) includes at least two studs (12, 14, . . . ) extending perpendicularly to the inner surface of said strand and is each pierced in its median part by a hole (12a, 14a, . . . ) of parallel axis to the strand, each side of the middle part includes recesses (15, 17, . . . ), complementary to the studs including through passages (15a, 17a, . . . ) on the back cover side and blind holes on the crystal side. The studs are fitted into recesses, and locked with U shaped parts (18,28) engaged on the back side cover through the through passages, the holes of the studs and the blind hole. If one desires, this assembly enables a portion of the middle part located at 6 o'clock and/or 12 o'clock to be left entirely free of any attaching means.