Abstract: A timepiece having a mechanical clock movement and separate first and second cases (2, 3), the movement including first and second portions housed in the first and second cases (2, 3), respectively, the cases (2, 3) being mutually connected in a rotatably hinged manner via a hinge (4) defining a pivot axis so as to be capable of forming a variable angle between the cases, the part further including a controller arranged to transmit information from one portion of the movement to the other. The controller includes at least one rod (15) slidably mounted in the hinge along an axis substantially parallel to the pivot axis and engaging with the first and second portions of the clock movement for transmitting information from one portion of the movement to the other, by a linear, alternating movement, regardless of the relative position of the two cases (2, 3).

Abstract: A timepiece includes a frame (1a, 1b) and a gear pivotably mounted on the frame (1a, 1b) via at least one pivoting member (5a, 5b) which includes a bearing and a pivot inserted in the bearing, at least the contact surfaces of the bearing and the pivot being made from at least one material with an intrinsically low friction coefficient and a low wear rate, the gear including at least one plate (2a, 2b) provided with a first hole (3a, 3b). The pivoting member includes a first plate (6a, 6b) provided with a second hole (8a, 8b) and forming the bearing, and a second plate (7a, 7b) provided with a small rod (9a, 9b) inserted in the first and second holes and forming the pivot, one of the first (6a, 6b) and second (7a, 7b) plates being rigidly connected to the gear and the other to the frame (1a, 1b).

Abstract: A watch movement, includes a frame (10, 11, 20, 22, 24), defined by a first and a second parallel plane surface and defining reference planes (A, B), the second plane (B) being located alongside the movement for placing adjacent to the wrist of the wearer, at least one balance wheel (30), pivoting in bearings fixed in the frame, at least one escape mechanism (26, 28) providing support for the balance wheel, an energy source (12), clockwork finishing movements (14), connecting the energy source to the escape mechanism and motion work (42).The balance wheel turns about an axis (YY), inclined in relation to the reference planes and intersecting the same, the point of intersection (PA) of the axis (Y) with the first plane (A) being closer to the center of the movement than the point of intersection (PB) of the axis (Y) with the second plane (B).

Abstract: A pivot organ (5a, 5b) designed to allow the rotation of a piece (3) of a clockwork movement around an axis of rotation, includes two elements: a pivot (7a, 7b) and a bearing (6a, 6b) receiving the pivot (7a, 7b), one being integral with the piece (3) and the other being integral with the frame (1) of the movement. The elements (6a, 6b, 7a, 7b) have shapes at their opposite surfaces such that the section of one of the elements along a plane perpendicular to the axis of rotation is circular, the section of the other element along the plane being non-circular, so as to reduce the contact surface between the pivot (7a, 7b) and the bearing (6a, 6b). At least the contact surfaces of the two elements against each other are made from at least one material intrinsically having a low coefficient of friction and a low wear coefficient.

Abstract: A watch bracelet includes two straps (12, 14; 46, 48), designed to be fixed to a watch case (24, 44) at one of the ends thereof, characterised in being provided with a lentiform loop (18, 40, 58) fixed thereto.

Abstract: A watch movement, includes a frame (10, 11, 20, 22, 24), defined by a first and a second parallel plane surface and defining reference planes (A, B), the second plane (B) being located alongside the movement for placing adjacent to the wrist of the wearer, at least one balance wheel (30), pivoting in bearings fixed in the frame, at least one escape mechanism (26, 28) providing support for the balance wheel, an energy source (12), clockwork finishing movements (14), connecting the energy source to the escape mechanism and motion work (42).The balance wheel turns about an axis (YY), inclined in relation to the reference planes and intersecting the same, the point of intersection (PA) of the axis (Y) with the first plane (A) being closer to the centre of the movement than the point of intersection (PB) of the axis (Y) with the second plane (B).

Abstract: A movement for a timepiece, that includes: a housing (10, 12); an energy source; a gear driven by the energy source (14); a frame (26) for a tourbillon (18) rotatingly mounted on the housing (10, 12) about a first axis (AA) and driven by the gear (14); a balance (32) mounted so as to oscillate in bearings on the frame (26); and an escapement (16, 34) including a fixed wheel (16) and a control member (34) interacting with the balance (32), the fixed wheel (16) sustaining the balance (32). In this movement, the bearings are arranged so that the balance (32) oscillates about a second axis (BB) inclined relative to the first axis (AA).

Abstract: The invention concerns a chronograph watch movement, comprising a chronograph mechanism, including: a chronograph gear-train comprising first (40) and second (38) wheels completing a revolution in sixty seconds and a revolution in a fraction of an hour respectively and arranged in the center of the movement, a control device (48) for starting and stopping the rotation of the chronograph gear-train, and a reset device (50). In said movement, the chronograph mechanism further comprises switching means designed such that, upon activation, they connect the second wheel (38) of the chronograph gear-train to a finishing mobile, so that the display means borne by the second wheel display the current time unit equivalent to that of the measured time.

Abstract: The invention concerns a display device for a watch movement comprising: a frame (110), an assembly of wheels pivotably mounted on the frame and wherein the angular position of a first (116) and a second (120) among them is based on the state of an information to be displayed, and a display member (126) mobile about an axis (A-A), and designed to enable data associated with the first (116) or the second (120) wheel to be displayed by the same display member (126).

Abstract: A timepiece includes a casing having a casing interior having a viewer's side provided with a viewing opening, a base side provided with a sound aperture, and an annular surface surrounding the sound aperture. A membrane extending over the sound aperture closes the base side of the casing interior, the membrane having a circumferential region in sealed connection with the annular surface. A tensioning device maintains the membrane at a desired tension in the radial direction. A vibration generator arranged in the casing interior produces a sound whose frequency can be adjusted by adjusting the tension of the membrane.

Abstract: The invention concerns a chronograph-type watch provided with a movement (29) comprising: current time display means, measured time display means, a time base designed to regulate said display means, a control device (34, 40) for starting and stopping the measured time display means, a reset device for resetting the measured time display means when time measurement is over. The watch is provided with a case (10) for housing the movement (29) and comprising at least one slide (24) for controlling the control and reset devices. Said watch further comprises a locking device (32, 52) designed to co-operate with the control device (34, 40) to enable or disable it, and an actuating member (28, 44) designed to de accessible outside the case (10), for controlling device locking device (32, 52).

Abstract: The invention concerns a chronograph-type watch provided with a movement (29) comprising: current time display means, measured time display means, a time base designed to regulate said display means, a control device (34, 40) for starting and stopping the measured time display means, a reset device for resetting the measured time display means when time measurement is over. The watch is provided with a case (10) for housing the movement (29) and comprising at least one slide (24) for controlling the control and reset devices. Said watch further comprises a locking device (32, 52) designed to co-operate with the control device (34, 40) to enable or disable it, and an actuating member (28, 44) designed to de accessible outside the case (10), for controlling the locking device (32, 52).

Abstract: Chronograph mechanism including first (20, 22) and second (21, 23) measured time counters and control means (24) arranged so as to start to stop one or other of the counters and a switching device (25) arranged such that the actuation thereof causes the started counter to stop and the stopped counter to start.

Abstract: The invention concerns a display device for a watch movement comprising: a frame (110), an assembly of wheels pivotably mounted on the frame and wherein the angular position of a first (116) and a second (120) among them is based on the state of an information to be displayed, and a display member (126) mobile about an axis (A-A), and designed to enable data associated with the first (116) or the second (120) wheel to be displayed by the same display member (126).

Abstract: The invention concerns a chronograph watch movement, comprising a chronograph mechanism, including: a chrono-graph gear-train comprising first (40) and second (38) wheels completing a revolution in sixty seconds and a revolution in a fraction of an hour respectively and arranged in the center of the movement, a control device (48) for starting and stopping the rotation of the chronograph gear-train, and a reset device (50). In said movement, the chronograph mechanism further comprises switching means designed such that, upon activation, they connect the second wheel (38) of the chronograph gear-train to a finishing mobile, so that the display means borne by the second wheel display the current time unit equivalent to that of the measured time.

Abstract: Chronograph mechanism including first (20, 22) and second (21, 23) measured time counters and control means (24) arranged so as to start to stop one or other of the counters and a switching device (25) arranged such that the actuation thereof causes the started counter to stop and the stopped counter to start.

Abstract: A clock with a twenty four hour display includes a minute hand, a second hand, a minute scale, a date display, and an hour scale on a first conchoid. The first conchoid includes an outer loop for the hours of the day from 6-18 hours and an inner loop for the hours of the day from 18-6. A crossing point of the inner and outer loops is established at the hours of 6 and 18. To achieve unambiguous indication, the hour hand is made variable in length. In a second conchoid offset by a constant amount radially inwards with respect to the first conchoid, which for instance is milled in the form of a groove in the dial, a guiding element is moved azimuthally through the inner part of the hour hand, which receives an overlay of radial movement owing to the shape of the second conchoid. The second conchoid and the guiding element may be covered by a disc joined to the inner part of the hour hand and turning with it.