Abstract: A spring (1) for a notching system, the spring including at least two elastic arms (11, 12), and a first toothset javomg first notching teeth (11a, 12a) disposed on each of the arms, the spring being designed such that, in a position in which one of the arms of the spring is not loaded, the arm is convex as seen from the top of the first notching tooth of this arm.

Abstract: 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.

Abstract: A spring (1) for a notching system, the spring including at least two elastic arms (11, 12), and a first toothset javomg first notching teeth (11a, 12a) disposed on each of the arms, the spring being designed such that, in a position in which one of the arms of the spring is not loaded, the arm is convex as seen from the top of the first notching tooth of this arm.

Abstract: A notching system (100) including a spring (1) having a first including n first teeth (11a, 12a) a first member (2) having a second toothset including m second teeth (22a, 22b), and a second member (3) mounted so as to be movable, in particular mounted so as to be rotatable, with respect to the first member (2), the first and second toothsets being arranged such that, through their interactions, they define p notches or indexed positions, the spring (1) including at least two elastic arms (11, 12), and at least one first pivot connection element (1b) between said two elastic arms (11, 12), the second member including at least one second pivot connection element (3b) cooperating with the at least one first pivot connection element (1b) in order to create at least one pivot connection between the spring (1) and the second member (3).

Abstract: 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.

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: Assembly screw (1) for the pivoting attachment of at least two horology components in a position of assembly, the assembly screw (1) comprising at least one guide portion (3) allowing one of the horology components to pivot, and at least one threaded portion (4) allowing it to be fixed to another horology component, wherein this screw comprises a shoulder (5) intended to come into abutment against this other horology component and a zone (10) of lower mechanical rigidity to reduce the contact pressure applied at the shoulder (5) of the assembly screw when the horology components are in the position of assembly.

Abstract: 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.

Abstract: 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.

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: Assembly screw (1) for the pivoting attachment of at least two horology components in a position of assembly, the assembly screw (1) comprising at least one guide portion (3) allowing one of the horology components to pivot, and at least one threaded portion (4) allowing it to be fixed to another horology component, wherein this screw comprises a shoulder (5) intended to come into abutment against this other horology component and a zone (10) of lower mechanical rigidity to reduce the contact pressure applied at the shoulder (5) of the assembly screw when the horology components are in the position of assembly.

Abstract: Said strap with articulated links, in particular for a watch, comprises at least three adjacent rows of links offset from one adjacent row to another, in which at least one friction surface (3, 13, 23-163) of each joint is made of a material of which the hardness is >800 HV. Said bearing surface (3, 13, 23-163) is in contact with at least one joint element (5, 15, 25-165) having at least one friction surface made of a second material selected from the following materials: ceramic, ceramic-metal composite, amorphous carbon, stainless steel without nickel, cobalt alloy, gold or gold alloy, platinum or platinum alloy, platinoid or platinoid alloy, titanium or titanium alloy, capable of reducing the frictional wear with the friction surface (3, 13, 23-163).

Abstract: Said strap with articulated links, in particular for a watch, comprises at least three adjacent rows of links offset from one adjacent row to another, in which at least one friction surface (3, 13, 23-163) of each joint is made of a material of which the hardness is >800 HV. Said bearing surface (3, 13, 23-163) is in contact with at least one joint element (5, 15, 25-165) having at least one friction surface made of a second material selected from the following materials: ceramic, ceramic-metal composite, amorphous carbon, stainless steel without nickel, cobalt alloy, gold or gold alloy, platinum or platinum alloy, platinoid or platinoid alloy, titanium or titanium alloy, capable of reducing the frictional wear with the friction surface (3, 13, 23-163).