Abstract: A motor group including motor modules, each including a motor device driving a display wheel set, with a centre pipe fixed on a plate, including a device for rotational guiding, about a main axis, of a display wheel set internal or external to the centre pipe, this module includes an axial stop arranged to limit to a predetermined value the axial play in the direction of the main axis between the centre pipe and the display wheel set, wherein a protruding surface of the centre pipe or of the display wheel set, or an added axial stop, captively mounted between the centre pipe and the display wheel set, or fixed to the display wheel set.

Abstract: Timepiece display mechanism comprising a centre pipe fixed on a plate, this centre pipe comprising a main bore or a main guide bearing surface for receiving and guiding in rotation, about a main axis, a display wheel set internal or external to the centre pipe, and this display mechanism comprises an axial stop arranged to limit to a predetermined value the axial play in the direction of the main axis between the centre pipe and the display wheel set, and which is an added axial stop which is either captively mounted between the centre tube and the display wheel set, or fixed to the display wheel set.

Abstract: The invention relates to a timepiece.

Abstract: A push-button arrangement includes an electronic plate. The push-button is of the type surface mounted on a flexible printed circuit sheet that is itself partially fixed to the electronic plate. A portion of the flexible printed circuit sheet that carries the push-button remains free and is folded around a peripheral edge of the electronic plate, such that the push-button extends substantially perpendicularly to the electronic plate and bears against a lateral surface of the electronic plate.

Abstract: A motorization group including power and control devices, and a motor module for watches, with a motor with a coil driving an output wheel set on an output arbor, this motor module includes main mechanical and electrical connectors to a structure or another motor module, and flat links cooperating with another motor module, each coil being electrically connected to two main connectors or to two flat links, more particularly, the flat links of the motor modules are arranged for an electrical connection, a main motor module carrying a main arbor parallel to each output arbor, electrically connected by main connectors or flat links, either to the structure, or to another motor module.

Abstract: The invention concerns a portable electronic device comprising at least one electronic module, the electronic module comprising, in particular, a main plate provided with a cavity arranged for receiving an electrical energy source, at least one movement associated with a printed circuit, an elastically deformable contact member for ensuring an electrical connection between the electrical energy source and the printed circuit, and means for holding the electrical energy source. According to the invention, the means for holding the energy source comprise a removable holder made of insulating material arranged to receive the energy source and comprising a removable clamp for holding the energy source in place, the holder being configured to be inserted inside the cavity.

Abstract: Electromechanical apparatus including a wheel set and an analogue indicator member which are integral in rotation, a stepping motor, and a capacitive device for detection of the angular position of the wheel set, including a rotor, a stator and an electronic measuring circuit, the stator including a first pair of electrodes having a first capacitance and a second pair of electrodes having a second capacitance, the rotor being adapted such that the values of the two capacitances depend on the angular position of the rotor, and an electronic measuring circuit being provided for generating an output signal representative of a difference between the respective values of the first and of the second capacitance.

Abstract: Movable assembly for a timepiece display device, with a display member pivoting about an axis and having a first off-centre centre of inertia positioned in a direction of unbalance, and a mobile element pivoting about the axis integrally with the display member and having a second centre of inertia in the direction of unbalance on the opposite side to that of the first centre of inertia and including at least one cutout on the opposite side to that of the second centre of inertia with respect to the axis, and/or at least one inertia block situated entirely on the side of the second centre of inertia, and any bore or recess or cutout comprised in the mobile element, other than a bore around the axis, is situated entirely on the side opposite to that of the second centre of inertia with respect to the axis.

Abstract: An electronic clock mechanism includes an analog display device including a ring of dates and a stopwatch hand associated with a graduation of a small counter. The ring and hand are driven by a same electric motor via a permanent gear train, the hand being mounted on a wheel of the permanent gear train, the wheel arranged between a motor pinion and a movable element including a date driving wheel. The ring and date driving wheel respectively include two sets of teeth forming a permanent gear having a relatively large clearance to define a dead angle region for the date driving wheel as the ring is positioned by a jumper. The dead angle region is used to drive the stopwatch hand independently of the ring. The permanent gear train is arranged such that torque for positioning the rotor creates for the date driving wheel a blocking torque for shock-resistance.

Abstract: A device for detecting and synchronizing a position of at least one first wheel of a timepiece mechanism for an electronic analog wristwatch, includes this first wheel extending in a plane. The detection and synchronization device includes at least one light source emitting a light beam and at least one light detection system. A first light-reflecting element projects from one of an upper or lower surfaces of the first wheel of the timepiece mechanism. The light source and the light detection system are arranged so that in a determined position of the first wheel of the timepiece mechanism, the light beam emitted by the light source is reflected by the first light-reflecting element in the direction of the light detection system. The detection and synchronization device is housed within a case of the wristwatch.

Abstract: A device for setting watches arranged to be pressed onto a crystal of a watch and including plural display mechanisms. The device is arranged to enable the user to see the display mechanisms of the watch as they are set.

Abstract: An electromechanical or digital watch includes a middle part that delimits with a glass a watch case. The glass includes an upper surface oriented upwardly, and a lower surface oriented towards the watch case. The watch also includes a dial made of an electrically non-conductive material. The dial includes a lower surface and an upper surface located opposite the watch case. Electrically conductive paths for the connection of one or more electronic components are structured on at least one of the lower or upper surfaces of the dial. The watch includes a flange that ensures, via the electrically conductive paths, the electrical connection between an electronic device arranged on the lower surface of the glass and the electronic components. The flange supports the dial or is made in one-piece with the dial.

Abstract: In the control method for an analog display device fitted to a timepiece movement, the motor is used both for driving a first indicator of a time parameter and a second periodically driven indicator. To this end, the motor is controlled such that, when the first indicator is in an operating mode and the second indicator is arranged to remain substantially immobile, said first indicator is driven in rotation by the motor alternately. The first indicator is driven in a forward direction, to display the time parameter, during a first period in which a periodic actuation wheel set is simultaneously driven in positions of its area of non-actuation, and in a backward direction, in accelerated mode, during a second period following the first period, before the periodic actuation wheel set is driven in a position of its area of actuation.

Abstract: Electromechanical apparatus comprising a wheel set and an analogue indicator member (14) which are integral in rotation, a stepping motor, and a capacitive device for detection of the angular position of the wheel set, comprising a rotor (4: 10), a stator (18a, 18b, 20a, 20b, 22, 24, 26a, 26b, 26c) and an electronic measuring circuit (28), the stator comprising a first pair of electrodes (18a, 18b) having a first capacitance (C1) and a second pair of electrodes (20a, 20b) having a second capacitance (C2), the rotor being adapted such that the values of the two capacitances depend on the angular position of the rotor, and an electronic measuring circuit (28) being provided for generating an output signal representative of a difference between the respective values of the first (C1) and of the second (C2) capacitance.

Abstract: A method of detecting a movement of a timepiece setting stem arranged to be moved axially along and/or rotated about its longitudinal axis. The method includes a light source illuminating a portion of the setting stem; a light detector receiving a reflected or diffracted light pattern from the setting stem; a processor forming a first pixel pattern representative of the reflected light pattern at a first time instant; the processor forming a second pixel pattern representative of the reflected light pattern at a second, later time instant; and determining that the setting stem has been moved, if the second pixel pattern is different or shifted with respect to the first pixel pattern.

Abstract: The invention concerns a multifunction display device for a watch including a rotating assembly having time indicators and function indicators, said rotating assembly being moved in rotation by a directional means, said display device being characterized in that the function indicators appear at least two times so that the rotating assembly presents the time indicators once and the function indicators at least twice.

Abstract: The timepiece movement is provided with an analog device for displaying information whose value varies periodically or intermittently, this analog display device including, on the one hand, an indicator provided with a first toothing, and on the other hand, a mechanism for the periodic or intermittent driving of the indicator. The drive mechanism is formed by an irreversible transmission system which ensures a shock resistant function for the indicator. The display device further includes a positioning jumper for the indicator generating a positioning force on the first toothing, which is sufficient to precisely position the indicator in a plurality of discrete display positions, but considerably insufficient to ensure a shock resistant function for the indicator. Thus, the indicator can be driven with a relatively low torque; which therefore requires less energy and makes it possible to provide a drive mechanism with a lower gear reduction for the drive torque transmission ratio.

Abstract: Shockproof timepiece wheel for driving a component having unbalance relative to a pivot axis of this wheel, The wheel includes, on the one hand, an arbour for pivotally guiding the wheel about this pivot axis, and on the other hand, a drive device arranged or assembled on a flange of this wheel, the wheel including at least one flexible element between this arbour and the flange. The flange includes a cylindrical shoulder, which cooperates in abutment for centring purposes with a complementary cylindrical shoulder provided in the arbour to ensure the perfect concentricity of the drive device with the arbour.

Abstract: A mechanism drives the hands of an electromechanical watch. It includes an electric motor, a set of gear wheels connected to the electric motor to move the hands forward or backward on each actuation of the electric motor, and a locking device. The locking device includes a piezoelectric actuator for locking, in a rest mode, directly or via a bolt, one wheel of the set between each actuation of the electric motor. The piezoelectric actuator releases the wheel of the set of gear wheels, when it is actuated by an electrical signal at the moment of each actuation of the electric motor to move the hands forward or backward.

Abstract: Watch comprising a middle part which, with a crystal, delimits a watch case. The crystal includes a top face facing the user and an opposite bottom face facing the watch case. An electronic device is arranged on the bottom face of the crystal. A printed circuit board is disposed inside the watch case, underneath and remote from the electronic device. The watch includes a flange which is disposed between the crystal and the printed circuit board. The flange carries an electrical connection between the electronic device and the printed circuit board.