Abstract: The invention relates to a device for winding a timepiece by means of the crown, said device including: a body having at least two housings inside which are respectively arranged a motor, a rechargeable battery, and an electronic control circuit, means for driving the crown disposed at one of the ends of the body of the device and secured to said motor, intended to rotatably drive said timepiece crown, According to the invention, the device includes a spring placed between said battery and said motor to permit said motor to slide in its housing with said drive means inside the body of said device, said motor being configured to slide into at least two positions, including: a rest position in which said motor is not supplied with power, and an operating position in which said motor is supplied with power in order to start the rotation of said drive means when said drive means are engaged and pressed onto the crown of said watch.

Abstract: Timepiece wheel (10) comprising teeth (2) with play compensation each including a catch (3) projecting from a catch foot (31), and an elastic strip (4) projecting from a strip foot (41) opposite said catch (3) from which said strip (4) is separated by a ventral notch (5) and an intrados profile (43) of which, on the side opposite said catch (3), delimits a dorsal notch (6), said strip foot (41) being delimited, towards the pivot axis (D) of said wheel (10), by an inner end (51) of said ventral notch (5) and by an inner end (61) of said dorsal notch (6). Said inner end (61) is located closer to said axis (D) than said inner end (51) and extends, on the side of said axis (D) underneath said catch foot (31) or underneath the inner extension (52) of said ventral notch (5) towards said pivot axis (D).

Abstract: A metal pivot pin includes at least one pivot at at least one of its ends, and the metal is an austenitic steel, an austenitic cobalt alloy, or an austenitic nickel alloy in order to limit a sensitivity of the pin to magnetic fields. At least an outer surface of the at least one pivot is hardened to a predetermined depth relative to the rest of the pin in order to harden the at least one pivot.

Abstract: Navigation aid instrument for an aircraft pilot including: a first display device (R3) extending horizontally, wherein the center of the display device embodies the longitudinal axis (X) of the aircraft, a mobile marker can move on either side of the center of the first display device (R3) indicating the aircraft flight direction relative to the ground, and the mobile marker is further away from the center of the display device (R3) the further the aircraft drifts from the rectilinear flight path, and/or two left (R2) and right (R1) display devices that extend vertically at a distance from each other and have the function of indicating the angle of inclination of the aircraft wings relative to the horizontal respectively on the left side or right side of the aircraft, wherein a mobile marker can move either along the left display device (R2), or along the right display device (R1) to indicate to the pilot which way his aeroplane is inclined and the value of the inclination is higher the further the mobile

Abstract: The invention relates to a system of measuring a piece of time related information connected to a display system for displaying the piece of time related information and to a fast correction system for correcting the time related information display at any time and in a predetermined step.

Abstract: Adjustable link for a bracelet, including first and second half links which are longitudinally movable via the cooperation of a guide device and a complementary guide device, and secured by the cooperation of arresting device and complementary arresting device. The first half link includes a longitudinal finger with a locking device having radial elastic return moveable between folded and unfolded positions, and the second half link includes a longitudinal channel allowing the finger to pass in only one of the folded or unfolded positions. In proximity to this channel, a complementary locking device cooperates, in at least one locking position, with the locking device in the other of this folded or unfolded positions. The locking device and complementary locking device together define at least two of the longitudinally separate locking positions.

Abstract: A bracelet clasp including an easily manipulated device of simple structure for adjusting the usable length of the bracelet by a firm adjustment, including when the clasp is open. The adjusting device is separate from the locking member, and the lock is arranged to move from its closed state to its open state by the user acting on the control member of the locking member such that the adjusting device is capable of being shifted independently of the open or closed state of the clasp. The clasp has a discrete structure, since it is actuated by the control member already provided for unlocking the clasp, although it is separate from the locking member of the clasp, and this additionally allows the length of the bracelet to be adjusted even when the clasp is in its closed state.

Abstract: A decorative piece including a support made of a material having no plastic deformation in which at least one hollow is arranged. The hollow is filled with a first material forming a substrate in which at least one housing is arranged, the at least one housing configured so that at least one aesthetic element can be housed therein.

Abstract: Navigation aid instrument for an aircraft pilot including: a first display device (R3) extending horizontally, wherein the center of the display device embodies the longitudinal axis (X) of the aircraft, a mobile marker can move on either side of the center of the first display device (R3) indicating the aircraft flight direction relative to the ground, and the mobile marker is further away from the center of the display device (R3) the further the aircraft drifts from the rectilinear flight path, and/or two left (R2) and right (R1) display devices that extend vertically at a distance from each other and have the function of indicating the angle of inclination of the aircraft wings relative to the horizontal respectively on the left side or right side of the aircraft, wherein a mobile marker can move either along the left display device (R2), or along the right display device (R1) to indicate to the pilot which way his aeroplane is inclined and the value of the inclination is higher the further the mobile

Abstract: A decorative piece includes a support made of a material having no usable plastic deformation in which at least one hollow is arranged. The hollow is filled with a first material forming a substrate in which at least one housing is arranged. The housing is arranged so that at least one aesthetic element is housable therein. The substrate further includes a gripper elastically deforming to retain the aesthetic element in the housing. The gripper further includes at least one setting element. A method for setting an aesthetic element on a support includes taking a support provided with at least one hollow, taking at least one aesthetic element, filling the hollow with a first material, making a setting hole and a gripper in the first material, and setting the aesthetic element by placing it in the hole and by deforming the gripper so as to retain the aesthetic element.

Abstract: A decorative piece includes a support made of a material having no usable plastic deformation in which at least one hollow is arranged. The hollow is filled with a first material forming a substrate in which at least one housing is arranged. The housing is arranged so that at least one aesthetic element is housable therein. The substrate further includes a gripper deforming by thermal expansion to retain the aesthetic element in the housing. The gripper further includes at least one setting element. A method for setting an aesthetic element on a support includes taking a support provided with at least one hollow, taking at least one aesthetic element, filling the hollow with a first material, making a setting hole and a gripper in the first material, and setting the aesthetic element by placing it in the hole and by deforming the gripper so as to retain the aesthetic element.

Abstract: The present invention concerns a device for performing operations on timepiece movements including a plate mounted on a stand, said plate including at least one storage area capable of receiving timepiece movement components, characterized in that said plate further includes at least one work support provided with means for holding timepiece movements, the work support being arranged to form an extension so as to facilitate access to said movement.

Abstract: The invention relates to a device for winding a timepiece by means of the crown, said device including: a body having at least two housings inside which are respectively arranged a motor, a rechargeable battery, and an electronic control circuit, means for driving the crown disposed at one of the ends of the body of the device and secured to said motor, intended to rotatably drive said timepiece crown, According to the invention, the device includes a spring placed between said battery and said motor to permit said motor to slide in its housing with said drive means inside the body of said device, said motor being configured to slide into at least two positions, including: a rest position in which said motor is not supplied with power, and an operating position in which said motor is supplied with power in order to start the rotation of said drive means when said drive means are engaged and pressed onto the crown of said watch.

Abstract: An orientable screw-in element including a cap and a device adjusting angular orientation of the cap relative to a watch middle part. The device adjusting angular orientation of the cap includes a first part including a flat friction surface, a second part integral with the cap including a second flat friction surface and a return mechanism configured to rotate the cap integrally with the first part. The cap and first part are axially mobile in relation to each other between a first position in which the first flat friction surface and second flat friction surface are each pressed against each other by the return mechanism such that the cap rotates integrally with the first part, and a second position in which the first flat friction surface and second flat friction surface are not in contact, the cap therefore free to rotate about the rotational axis of the screw-in element.

Abstract: An orientable screwdown crown includes a cover and a device for adjusting the angular orientation of the cover in relation to a watch centerpart. The device for adjusting the angular orientation includes a coupling member and an indexing unit between the cover and the coupling member as well as a restoring unit, which endeavor to rotationally fix the cover and the coupling member. The indexing unit includes a first tooth arrangement arranged on the coupling member.

Abstract: A timepiece case band including a peripheral shoulder in which an annular rotating bezel system is rotatably mounted. The rotating bezel system is an independent module including an annular bezel, an annular support element, a toothed element, and a spring mechanism cooperating elastically with a snap-fit mechanism, the spring mechanism and the toothed element being axially retained by the bezel and/or the support element. The rotating bezel system further includes a securing mechanism securing the spring mechanism, support element, and bezel to each other.

Abstract: Clasp comprising a cover connected to a first bracelet strand and to a second bracelet strand, a connecting means being inserted between the second bracelet strand and the cover of the clasp, the connecting means comprising an end link sliding between a first position in which it is engaged in the cover of the clasp, and a second position in which it is outside the cover of the clasp, the end link comprising a push-button which causes a toothed element to change from a first position, in which the toothed element is in mesh with a rack toothing, to a second position, in which the toothed element is released, the end link being provided with an arresting means preventing the removal of the end link from the cover of the clasp, the arresting means comprising at least one lug, which projects into a groove arranged in the bottom of the cover and which defines two end stop members.

Abstract: Adjustable link for a bracelet, including first and second half links which are longitudinally movable via the cooperation of a guide device and a complementary guide device, and secured by the cooperation of arresting device and complementary arresting device. The first half link includes a longitudinal finger with a locking device having radial elastic return moveable between folded and unfolded positions, and the second half link includes a longitudinal channel allowing the finger to pass in only one of the folded or unfolded positions. In proximity to this channel, a complementary locking device cooperates, in at least one locking position, with the locking device in the other of this folded or unfolded positions. The locking device and complementary locking device together define at least two of the longitudinally separate locking positions.

Abstract: Clasp comprising a cover connected to a first bracelet strand and to a second bracelet strand, a connecting means being inserted between the second bracelet strand and the cover of the clasp, the connecting means comprising an end link sliding between a first position in which it is engaged in the cover of the clasp, and a second position in which it is outside the cover of the clasp, the end link comprising a push-button which causes a toothed element to change from a first position, in which the toothed element is in mesh with a rack toothing, to a second position, in which the toothed element is released, the end link being provided with an arresting means preventing the removal of the end link from the cover of the clasp, the arresting means comprising at least one lug, which projects into a groove arranged in the bottom of the cover and which defines two end stop members.