Abstract: A winding machine includes motorization means arranged to move a support, carrying at least one watch or one horological movement, along a path in a plane. The motorization means are arranged to move each support parallel to a starting position corresponding to the loading or unloading of a watch or of a movement on the support, the axes of a three-dimensional frame of reference specific to the support always remaining parallel to the oriented directions that the axes occupy in the starting position.

Abstract: A winding machine includes motorization means arranged to move a support, carrying at least one watch or one horological movement, along a path in a plane. The motorization means are arranged to move each support parallel to a starting position corresponding to the loading or unloading of a watch or of a movement on the support, the axes of a three-dimensional frame of reference specific to the support always remaining parallel to the oriented directions that the axes occupy in the starting position.

Abstract: A device for measuring the accuracy of a mechanical watch includes a time reference source, a calculating mechanism, and another data processing unit. The time reference source is formed by an internal time reference source, or by a receiving and processing mechanism arranged to receive and process signals transmitted by an external time source to permanently update a repeater clock internal to the device. The calculating mechanism is arranged to calculate time differences between display values, and/or between time reference points provided by the time reference source, and to calculate a variation in rate. The another data processing unit is arranged to store and process at least one variation in rate calculated by the calculating mechanism, and/or a viewing mechanism arranged to display at least one variation in rate calculated by the calculating mechanism.

Abstract: A method of measuring accuracy of a watch including a visual display device, including: storing a first instant, at which the display is in a first display position corresponding to a first image, with a corresponding time reference source; determining a first display value for the first image and stored in a storage in correlation with the first instant; storing, after a determined time interval, a second instant, at which the display is in a second display position corresponding to a second image, with the corresponding source; determining a second display value for the second image and stored in the storage in correlation with the second instant; and calculating displaying on a viewing device the variation in rate of the display.

Abstract: A timepiece wheel set with a unidirectional wheel including an arbor carrying a pinion and at least a first wheel that is coaxial with the pinion and pivotally mounted on the arbor. The first wheel is connected to the arbor by a first spring, which exerts a friction force on the first wheel. The wheel set also includes a second wheel pivotally mounted on the arbor, and connected to the arbor by a second spring, which exert a friction force on the second wheel.

Abstract: A device for measuring the accuracy of a mechanical watch includes a time reference source, a calculating mechanism, and another data processing unit. The time reference source is formed by an internal time reference source, or by a receiving and processing mechanism arranged to receive and process signals transmitted by an external time source to permanently update a repeater clock internal to the device. The calculating mechanism is arranged to calculate time differences between display values, and/or between time reference points provided by the time reference source, and to calculate a variation in rate. The another data processing unit is arranged to store and process at least one variation in rate calculated by the calculating mechanism, and/or a viewing mechanism arranged to display at least one variation in rate calculated by the calculating mechanism.

Abstract: Mechanical timepiece movement, including at least one energy storage means fed at the input by a ratchet driven by one winding mechanism and at the output powering a going train. The movement includes first energy take-up means connected to at least one wheel set of this going train by at least a first elastic connection, this first energy take-up means cooperating with at least one wheel set driving this ratchet, in mesh with this ratchet for powering this energy storage means by reinjecting part of the energy taken up by this energy take-up means, this wheel set driving this ratchet being uncouplable under the action of at least one uncoupling mechanism active during the operation of this winding mechanism.

Abstract: Timepiece wheel set with a unidirectional wheel including an arbor carrying a pinion and at least a first wheel that is coaxial with this pinion and pivotally mounted on this arbor, this first wheel being connected to the arbor by elastic rotational return means or at least a first spring constituting first means of uncoupling, which exert a friction force on this first wheel, and the wheel set including a second wheel pivotally mounted on this arbor, and connected to this arbor by second elastic rotational return means or at least a second spring constituting second uncoupling means, which exert a friction force on this second wheel.

Abstract: Mechanical timepiece movement, including at least one energy storage means fed at the input by a ratchet driven by one winding mechanism and at the output powering a going train. The movement includes first energy take-up means connected to at least one wheel set of this going train by at least a first elastic connection, this first energy take-up means cooperating with at least one wheel set driving this ratchet, in mesh with this ratchet for powering this energy storage means by reinjecting part of the energy taken up by this energy take-up means, this wheel set driving this ratchet being uncouplable under the action of at least one uncoupling mechanism active during the operation of this winding mechanism.

Abstract: A method of measuring accuracy of a watch including a visual display device, including: storing a first instant, at which the display is in a first display position corresponding to a first image, with a corresponding time reference source; determining a first display value for the first image and stored in a storage in correlation with the first instant; storing, after a determined time interval, a second instant, at which the display is in a second display position corresponding to a second image, with the corresponding source; determining a second display value for the second image and stored in the storage in correlation with the second instant; and calculating displaying on a viewing device the variation in rate of the display.