Abstract: The timepiece has at least one wristband portion (30) extending in a longitudinal direction and removably fixed to a middle (20), in a first, fixing configuration to the middle (20) and a second, assembly configuration detached from the middle (20). In the first, fixing configuration at least one pivoting axis (2) is housed in respective transverse openings (21a, 1a, 31a) of at least one lug (21), at least one fixing element (1), and at least two connecting portions (31) of the wristband portion, and an immobilizing means (3) immobilizes at least one pivoting axis (2) against rotation relative to the at least one lug (21) and the at least one fixing element (1) or relative to the connecting portions (31) so that only the respective at least two connecting portions (31) or the at least one lug (21) and the at least one fixing clement (1) are mobile in rotation.

Abstract: A clasp having deployant blades for a wristband includes at least two blades (1, 2), one movable blade (1) being articulated on a second blade (2) in the area of first extremities, the clasp being able to adopt (i) a first closed configuration, in which the movable blade (1) exhibits a first predefined form (C1) and extends in a continuous manner for its entire length, substantially along the surface of the second blade (2); and the second extremity of the movable blade (1) is maintained in position by the clasp, and (ii) a second, deployed configuration, in which the second extremity of the movable blade (1) is free, and the movable blade (1) is able to exhibit a second predefined form (C2), different from the first predefined form (C1), in order to optimize the passage surface for the hand of a person wearing the clasp.

Abstract: A clasp having deployant blades for a wristband includes at least two blades (1, 2), one movable blade (1) being articulated on a second blade (2) in the area of first extremities, the clasp being able to adopt (i) a first closed configuration, in which the movable blade (1) exhibits a first predefined form (C1) and extends in a continuous manner for its entire length, substantially along the surface of the second blade (2); and the second extremity of the movable blade (1) is maintained in position by the clasp, and (ii) a second, deployed configuration, in which the second extremity of the movable blade (1) is free, and the movable blade (1) is able to exhibit a second predefined form (C2), different from the first predefined form (C1), in order to optimize the passage surface for the hand of a person wearing the clasp.

Abstract: An assembly device (3) for pivotally attaching at least two parts (M1, M2), comprising a screw (4) designed to be screwed into a first piece (M1) and carrying a pivoting guide pin (5) of a second part (M2), wherein this assembly device (3) comprises at least one elastic ring (6) able to work in conjunction with an element blocking one of the two parts (M1, M2), so as to prevent accidental axial movement of the assembly device (3).

Abstract: An assembly device (3) for pivotally attaching at least two parts (M1, M2), comprising a screw (4) designed to be screwed into a first piece (M1) and carrying a pivoting guide pin (5) of a second part (M2), wherein this assembly device (3) comprises at least one elastic ring (6) able to work in conjunction with an element blocking one of the two parts (M1, M2), so as to prevent accidental axial movement of the assembly device (3).