Abstract: Winding crown for a timepiece, said crown (40) including a bottom (42) and a skirt (44), which delimits an inner volume housing at least one elastically deformable element, the crown (40) being characterized in that a stop member is inserted between the elastically deformable element (50) and the bottom (42) of the crown (40) to prevent any surface contact between said elastically deformable element (50) and said bottom (42).

Abstract: Winding crown for a timepiece, said crown (32) including an uncoupling mechanism (1) comprising a rigid drive ring (4, 400) secured to the crown (32) and cooperating with at least one elastically deformable element (2; 200) secured to a pipe (12) to one end of which a winding stem is secured, the rigid ring (4; 400) driving the deformable elastic element (2; 200) in at least one rotational direction until the resistant torque opposed by said elastic element (2; 200) exceeds a threshold value beyond which said elastic element (2; 200) is deformed so as to interrupt the drive connection thereof with the rigid ring (4; 400), the elastically deformable element (2; 200) therefore having means for temporary coupling said element to said rigid drive ring (4; 400), the crown (32)) being characterized in that the elastically deformable element (2; 200) includes means for centering said element relative to the rigid drive ring (4; 400).

Abstract: Winding crown for a timepiece, said crown (40) including a bottom (42) and a skirt (44), which delimits an inner volume housing at least one elastically deformable element, the crown (40) being characterized in that a stop member is inserted between the elastically deformable element (50) and the bottom (42) of the crown (40) to prevent any surface contact between said elastically deformable element (50) and said bottom (42).

Abstract: The middle part includes an inner metallic middle part (10) and an outer middle part (20) made of a natural or synthetic mineral material, such as ceramics. The inner middle part (10) is itself made up of a top ring (12) and a bottom ring (14), each ring including a radial, peripheral extension (13, 15), whose opposite shoulders can mechanically lock the outer middle part (20), for example by screwing the two rings (12, 14) one inside the other.

Abstract: Winding crown for a timepiece, said crown (32) including an uncoupling mechanism (1) comprising a rigid drive ring (4, 400) secured to the crown (32) and cooperating with at least one elastically deformable element (2; 200) secured to a pipe (12) to one end of which a winding stem is secured, the rigid ring (4; 400) driving the deformable elastic element (2; 200) in at least one rotational direction until the resistant torque opposed by said elastic element (2; 200) exceeds a threshold value beyond which said elastic element (2; 200) is deformed so as to interrupt the drive connection thereof with the rigid ring (4; 400), the elastically deformable element (2; 200) therefore having means for temporary coupling said element to said rigid drive ring (4; 400), the crown (32)) being characterized in that the elastically deformable element (2; 200) includes means for centring said element relative to the rigid drive ring (4; 400).

Abstract: Winding crown for a timepiece, said crown (32) including an uncoupling mechanism (1) comprising a rigid drive ring (4, 400) secured to the crown (32) and cooperating with at least one elastically deformable element (2; 200) secured to a pipe (12) to one end of which a winding stem is secured, the rigid ring (4; 400) driving the deformable elastic element (2; 200) in at least one rotational direction until the resistant torque opposed by said elastic element (2; 200) exceeds a threshold value beyond which said elastic element (2; 200) is deformed so as to interrupt the drive connection thereof with the rigid ring (4; 400), the elastically deformable element (2; 200) therefore having means for temporary coupling said element to said rigid drive ring (4; 400), the crown (32)) being characterized in that the elastically deformable element (2; 200) includes means for centring said element relative to the rigid drive ring (4; 400).

Abstract: The middle part includes an inner metallic middle part (10) and an outer middle part (20) made of a natural or synthetic mineral material, such as ceramics. The inner middle part (10) is itself made up of a top ring (12) and a bottom ring (14), each ring including a radial, peripheral extension (13, 15), whose opposite shoulders can mechanically lock the outer middle part (20), for example by screwing the two rings (12, 14) one inside the other.

Abstract: Winding crown for a timepiece, said crown (32) including an uncoupling mechanism (1) comprising a rigid drive ring (4, 400) secured to the crown (32) and cooperating with at least one elastically deformable element (2; 200) secured to a pipe (12) to one end of which a winding stem is secured, the rigid ring (4; 400) driving the deformable elastic element (2; 200) in at least one rotational direction until the resistant torque opposed by said elastic element (2; 200) exceeds a threshold value beyond which said elastic element (2; 200) is deformed so as to interrupt the drive connection thereof with the rigid ring (4; 400), the elastically deformable element (2; 200) therefore having means for temporary coupling said element to said rigid drive ring (4; 400), the crown (32)) being characterized in that the elastically deformable element (2; 200) includes means for centring said element relative to the rigid drive ring (4; 400).

Abstract: Crown for a timepiece, said crown (1) including a cap (2) extended by a skirt (4) which delimits a hollow inner housing (6), said crown (1) being characterized in that an at least partially transparent cover (14) is mounted in the cap (2), said cover (14) revealing all or part of a device (18) arranged in the hollow inner housing (6) of the crown (1).