A watch has a mechanical movement with a force control mechanism arranged in a going train of the mechanical movement between an energy source and an escape wheel set connected to an oscillating oscillator to drive the escape wheel set always in the same direction of rotation. The escape wheel set meshes with a seconds wheel. A rotating locking element is arranged to cooperate with a stop member connected to this seconds wheel in order to lock this going train in a stop mode or to release this going train in a jump mode depending on the angular position of this seconds wheel. A flexure bearing with elastic strips is attached on the one hand to the seconds wheel and on the other hand to the movement support. The pre-wound flexure bearing is arranged to drive in rotation the seconds wheel and the escapement mechanism connected to the oscillator at each half-oscillation of the oscillator in the stop mode.

A watch has a mechanical movement with a force control mechanism arranged in a going train of the mechanical movement between an energy source and an escape wheel set connected to an oscillating oscillator to drive the escape wheel set always in the same direction of rotation. The escape wheel set meshes with a seconds wheel. A rotating locking element is arranged to cooperate with a stop member connected to this seconds wheel in order to lock this going train in a stop mode or to release this going train in a jump mode depending on the angular position of this seconds wheel. A flexure bearing with elastic strips is attached on the one hand to the seconds wheel and on the other hand to the movement support. The pre-wound flexure bearing is arranged to drive in rotation the seconds wheel and the escapement mechanism connected to the oscillator at each half-oscillation of the oscillator in the stop mode.

An escapement mechanism including a dual-forked lever having a pivot suitable for movement of the lever between a first pivot limit and a second pivot limit, and at least two rounded follower elements spaced from the pivot and at a predetermined distance from each other. At least one of the follower elements is mounted on each fork of the lever and each follower element lacks a locking face. At least one escape wheel has an outer periphery defining at least a first plurality of cam elements suitable to slidably contact and drive the rounded follower elements, and each cam element lacks a locking surface where contact is made with the follower elements.

An escapement mechanism including a dual-forked lever having a pivot suitable for movement of the lever between a first pivot limit and a second pivot limit, and at least two rounded follower elements spaced from the pivot and at a predetermined distance from each other. At least one of the follower elements is mounted on each fork of the lever and each follower element lacks a locking face. At least one escape wheel has an outer periphery defining at least a first plurality of cam elements suitable to slidably contact and drive the rounded follower elements, and each cam element lacks a locking surface where contact is made with the follower elements.

A method for producing a tube for a friction system comprising the tube and an arbor, in particular a tube provided to rub around a pinion arbor, the method comprising a first stage of plastic deformation of the tube, in particular a first stage of plastic deformation of the tube that is controlled in deformation, followed by a second stage of hardening of the tube, in particular hardening by heat treatment.

A method for producing a tube for a friction system comprising the tube and an arbor, in particular a tube provided to rub around a pinion arbor, the method comprising a first stage of plastic deformation of the tube, in particular a first stage of plastic deformation of the tube that is controlled in deformation, followed by a second stage of hardening of the tube, in particular hardening by heat treatment.

An item including a substrate and a coating having a colour with an interference effect for the decoration and/or the protection of the item, the coating including: a first opaque layer covering at least partially at least one surface of the substrate; a stack of at least two semi-transparent layers deposited by an ALD method covering the first layer; the stack having a thickness depending on the colour with an interference phenomenon of the coating.

A timepiece movement capable of suppressing generation of malfunction of a hand is provided. The movement includes an indicator hand wheel which is provided so as to be rotatable and to which an indicator hand is mounted; an indicator hand stepping motor rotating and driving the indicator hand wheel in both directions; an hour wheel provided so as to be rotatable around a first rotation axis different from a rotation axis of the indicator hand wheel and having a first shaft portion which extends along the first rotation axis and on the outer peripheral surface of which there is provided a contact portion that the indicator hand can abut, with the distance of the contact portion from the first rotation axis varying in accordance with a position in the peripheral direction around the first rotation axis; and an hour hand stepping motor rotating and driving the hour wheel and provided separately from the indicator hand stepping motor.

A timepiece mechanism (100) for disengaging a gear train. The timepiece mechanism (100) includes a gear set (110), a disengagement member (120), a holding member (121) and a control member (130). The gear set (110) includes a first wheel (111), a second wheel (112) and an intermediate wheel (113) configured to be driven by or for driving the first wheel (111) and/or for driving the second wheel (112). The holding member (121) holds the first wheel (111) and/or the second wheel (112) when the disengagement member (120), controlled by the control member (130), moves the intermediate wheel (113) between an engaged position (101) and a disengaged position (102). Hence the timepiece mechanism (100) is held in position while disengaging the watch mechanism.

A timepiece mechanism (100) for disengaging a gear train. The timepiece mechanism (100) includes a gear set (110), a disengagement member (120), a holding member (121) and a control member (130). The gear set (110) includes a first wheel (111), a second wheel (112) and an intermediate wheel (113) configured to be driven by or for driving the first wheel (111) and/or for driving the second wheel (112). The holding member (121) holds the first wheel (111) and/or the second wheel (112) when the disengagement member (120), controlled by the control member (130), moves the intermediate wheel (113) between an engaged position (101) and a disengaged position (102). Hence the timepiece mechanism (100) is held in position while disengaging the watch mechanism.