EP2686742B1 - Universal timepiece - Google Patents

Universal timepiece Download PDF

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Publication number
EP2686742B1
EP2686742B1 EP12710477.6A EP12710477A EP2686742B1 EP 2686742 B1 EP2686742 B1 EP 2686742B1 EP 12710477 A EP12710477 A EP 12710477A EP 2686742 B1 EP2686742 B1 EP 2686742B1
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EP
European Patent Office
Prior art keywords
dial
order
sectors
timepiece
moveable
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EP12710477.6A
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German (de)
French (fr)
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EP2686742A2 (en
Inventor
Alain Vuilleumier
Jean-Jacques Born
Dominique Léchot
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Swatch Group Research and Development SA
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Swatch Group Research and Development SA
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Priority to EP12710477.6A priority Critical patent/EP2686742B1/en
Publication of EP2686742A2 publication Critical patent/EP2686742A2/en
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Publication of EP2686742B1 publication Critical patent/EP2686742B1/en
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    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/22—Arrangements for indicating different local apparent times; Universal time pieces
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/22—Arrangements for indicating different local apparent times; Universal time pieces
    • G04B19/223—Arrangements for indicating different local apparent times; Universal time pieces with rotary disc, rotary bezel, or rotary dial

Definitions

  • the present invention relates to a timepiece, known as a universal timepiece, the dial of which allows the time of different time zones to be read quickly. It relates more particularly to such a timepiece comprising a first dial bearing geographical indications corresponding to the different time zones and defining a 24-hour turn, and comprising a second dial carrying a 24-hour turn of hours, the second dial being mobile concentrically with the first dial and being arranged to be driven in rotation at the rate of one revolution in 24 hours by the movement of the timepiece, the time indications being arranged opposite the geographical indications of the first dial to indicate local times .
  • the Swiss patent CH 270'085 in particular describes a universal watch which comprises a central central dial of twelve hours above which conventionally rotate the hour hands of minutes and seconds.
  • a first 24-hour annular dial is rotatably mounted around the central dial. This annular dial is arranged to be driven by movement, counterclockwise, at the rate of one revolution in twenty-four hours. It is still synchronized with the hands so that the passage of the 12-hour and 24-hour indications in the twelve position hours ”of the watch is made at the time when the hands are superimposed at twelve.
  • a second annular dial, bearing geographical indications corresponding to the time zones is rotatably mounted around the first annular dial. It is arranged to be moved manually by means of a crown whose stem ends in a bevel gear meshing with a peripheral toothing of the second annular dial.
  • WO 2008/125535 A2 discloses to the figure 3 a timepiece comprising a rotating dial with geographical indications (3) and an hour dial (31), the geographical indications having the same time change dates are on the same ring (36, 37, 38), which can be moved mechanically.
  • An object of the present invention is to remedy the drawbacks of the above-mentioned prior art.
  • the present invention achieves this object by providing a universal timepiece in accordance with claim 1 appended.
  • the figure 1 is a plan view from the dial side of a universal watch according to an example not forming part of the invention.
  • the Figures 7 and 8 are two views exploded diagrams showing the main elements of this same watch.
  • the watch shown has a middle 39 closed on top by three dials.
  • a fixed annular dial 44 which carries a 12-hour turn of hours, and which is arranged to cooperate with hour and minute hands respectively referenced 41 and 42.
  • the annular dial 44 surrounds a first dial 3 formed by a dial support (or plate) 9 which here has the shape of a disc and which carries movable dial sectors (11 to 15).
  • the first dial 3 is provided with geographical indications 5 which go around the dial and which correspond to the 24 time zones of the planet.
  • the first dial carries a second central dial (referenced 7) arranged concentrically with the first dial.
  • the second dial carries a 24-hour hour lap intended to cooperate with the geographical indications of the first dial to indicate local hours.
  • the second dial 7 is arranged to be driven in rotation by the movement 46 of the watch in the counterclockwise direction. Note that the second dial could just as easily turn in the same direction as the hands. In this case, the sequence of hours on the hour turn of the dial 7 would also be reversed.
  • the first dial 3 is arranged to be controlled manually in rotation by a manual control member operable from the outside of the middle part.
  • This control member comprises a crown 53 secured to a pinion 55.
  • the pinion 55 is arranged to mesh with a peripheral edge teeth 57 of the support 9. It will be understood that this arrangement allows the wearer of the watch to rotate the first dial 3, and therefore the geographical indications 5 which he wears, by actuating the crown 53.
  • the programming disc 25 is one of the manual means which, according to the invention, are arranged to selectively shift some of the said geographical indications by 1/24 th of a turn.
  • the watch of the example illustrated comprises a dedicated control member in the form of a rotary crown 27 mounted at four o'clock in the middle of the watch. Referring also to the figure 3 , it can be seen that the crown 27 is integral in rotation with a pinion 29 arranged inside the watch case. The pinion 29 engages with a peripheral toothing 31 of the programming disc 25.
  • a jumper spring 51 ( figure 6 ) is also arranged to secure the programming disc of the first dial 3. Note that the jumper 51 should not be too strong, so that, when the crown 27 is actuated, the disc 25 can rotate without driving the dial 3 with him.
  • the middle part 39 is also arranged to receive the movement 46 of the watch.
  • the watch movement comprises a carriageway and a concentric hour cannon (not shown) which respectively carry the 42 minute and 41 hour hands.
  • the movement 46 also includes a 24 hour cannon concentric with the axis needles and which is arranged to drive the second dial 7 at the rate of one revolution in 24 hours.
  • An opening 48 is further arranged in the middle part 39 to allow the passage of the winding stem 47 and setting the time of the movement.
  • This rod ends with a knurled crown 50 ( figure 1 ).
  • the figure 2 is an enlarged view of part of the figure 1 , showing in particular the first and the second dial (respectively referenced 3 and 7).
  • the movable dial sectors 11, 12, 13, 14 and 15 carry some of the geographical indications 5, while other geographical indications are affixed directly on the plate 9 of the dial.
  • the plate 9 is pierced with a number of oblong openings 17 (better visible in the figure 5 ) which define arcs of concentric circles on the dial.
  • the different sectors 11 to 15 are arranged to slide each in one of the oblong openings, so as to be able to offset angularly by a 1/24 th of a turn relative to the board of the first dial 3.
  • the geographical indications 5 which are carried by the same sector of mobile dial designate places where the passages between summer time and winter time take place on the same date in one direction as in the other.
  • the dial sector referenced 12 carries, from left to right, the geographical indications "Azores”, “London”, “Geneva” and "Helsinki”.
  • dial sector referenced 11 carries, from left to right, the geographical indications “Anchorage”, “LA”, “Calgary”, “Chicago”, “NY” and “Hallifax”. These six cities are all located in the United States or Canada and, in these regions, the changeover to summer time currently takes place on the second Sunday in March, while the return to winter time takes place the first Sunday in November.
  • Three other sliding sectors each carry a unique geographical indication.
  • Each of these three geographical indications corresponds to a place in the southern hemisphere where, as is well known, the seasons are reversed with respect to the northern hemisphere. For example, in Sydney (sundial 13) and in southern Australia, daylight saving time occurs on the first Sunday in October, and daylight saving time occurs the first Sunday in April of the following year. In Auckland (area of dial 14) and in the rest of New Zealand, the changeover to summer time takes place on the last Sunday in September, and the return to winter time takes place on the first Sunday April of the following year. Finally in Rio de Janeiro, (area of dial 15), the transition to summer time takes place on the third Sunday in October, and the return to winter time takes place on the third or fourth Sunday in February of the following year.
  • the first annular dial 3 still carries, from left to right, the geographical indications "Abidjan”, “Tripoli”, “Pretoria”, “Djibouti”, “Moscow”, “Karachi”, “Dacca”, “Bangkok”, “ Hong Kong “,” Tokyo “,” Brisbane “,” Noumea “,” Midway “,” Samoa “,” Hawaii “,” Gambier Islands “,” Henderson Islands “,” Culiacan “,” Galapagos ",” Lima “, “Caracas” and “wholesome Aires”.
  • These latest geographical indications correspond to places where summer time is not practiced. As there is therefore no seasonal time change in these regions, the corresponding geographical indications do not need to be carried by mobile dial sectors, and can therefore be carried directly on plate 9 of the first dial.
  • the figure 5 is a view from the back side of the watch, the back and the movement having been removed so as to offer a bottom view of the plate 9 of the dial 3.
  • the plate 9 is pierced with a number of oblong openings 17 which define arcs of concentric circles on the dial. In the present example, these different arcs are not all subtended by the same circle.
  • a first circle underpins four, while the fifth is on a larger diameter circle.
  • the plate 9 also carries five small starred mobiles (respectively referenced 19, 20, 21, 22, and 23) each formed by a star with four branches and a small toothed wheel assembled in coaxial position.
  • the five small star mobiles are rotatably mounted on plate 9 and, as shown in the figure 5 , the distances separating them from the axis of the watch are all different in the present example.
  • the movable dial sectors 11, 12, 13, 14 and 15 are arranged to slide in the openings in an arc of a circle 17.
  • the movable dial sectors include feet (not shown) which are inserted into the oblong openings so that the ends of the feet protrude under the board of the first dial.
  • the figure 6 is a view similar to the figure 5 further showing five toothed sectors (referenced respectively 11A, 12A, 13A, 14A and 15A).
  • the movable dial sectors are each integral with one of the toothed sectors by means of the feet passing through the openings 17 in an arc of a circle (during the assembly of the timepiece, it is for example possible process by first inserting the feet into the openings of the board, and then driving the distal end of each foot into a hole provided for this purpose in one of the toothed sectors).
  • each of the toothed sectors 11A, 12A, 13A, 14A and 15A meshes with the teeth of one of the small starred mobiles (respectively 19, 20, 21, 22 and 23).
  • the figure 6 further shows five jumper springs 49 which are arranged to cooperate with the five movable dial sectors. It will be understood that thanks, on the one hand, to the limited length of the openings in a circular arc 17, and on the other hand, to the presence of the jumpers 49, the movable dial sectors 11 to 18 can each occupy only two positions stable which are separated from each other by 1/24 th of a turn.
  • the figure 3 is a view similar to those of figures 5 and 6 , but in which a programming disk 25 is also shown, the function of which is to determine the order in which the various sectors of mobile dial 11, 12, 13, 14 and 15 are actuated.
  • the programming disc In this view from the back side of the watch, the programming disc almost entirely hides the plate 9 of the first dial, of which only the peripheral toothing 57 is visible. It will also be understood that the toothed sectors 11A, 12A, 13A, 14A and 15A and the small star mobiles 19, 20, 21, 22 and 23 which are arranged between the programming disc 25 and the board 9 are not visible either on the figure 3 .
  • the programming disc has ten pins referenced 19H, 19E, 20H, 20E, 21E, 21H, 22E, 22H, 23E and 23H.
  • the pins are arranged on the face of the programming disc 25 facing plate 9, and that they are therefore not strictly speaking visible on the figure 3 .
  • the pins are driven into holes in the programming disc. It is in fact the holes in which the pins are driven which are visible in the figure 3 .
  • the crown 27 is integral in rotation with a pinion 29 arranged inside the watch case.
  • the pinion 29 engages with a peripheral toothing 31 of the programming disc 25.
  • the programming disc is designed to rotate in the same direction as the hands of the watch when it is actuated. Means known to those skilled in the art (not shown) are preferably still provided to prevent the rotation of the programming disc in the counterclockwise direction. It will be understood, however, that the invention is not limited to the case where the programming disc must be actuated in the clockwise direction. On the contrary, according to other embodiments, the programming disc could be arranged to rotate anticlockwise when it is actuated. In this case, the pins would be arranged in a different configuration on the disc.
  • the respective distances separating the ten pins from the axis of the watch are all different.
  • these distances are increasing in the order of the lugs 19H, 19E, 20H, 20E, 21E, 21H, 22E, 22H, 23E and, finally, 23H.
  • the wearer of the watch rotates the programming disc 25 by actuating the control member 27, each of the lugs carried by the disc move along a circular trajectory whose radius is equal to the distance separating this lug from the axis watch hands.
  • the distances separating the five star mobiles from the axis of the watch were also all different.
  • each mobile the star is arranged so that its star intercepts the trajectory of two very precise pins.
  • the starred mobile 19 is arranged to intercept the circular trajectories of the lugs 19H and 19E
  • the starred mobile 20 is arranged to intercept the trajectories of the lugs 20H and 20E, and so on.
  • the pin 19H is located slightly closer to the axis of the watch hands than is the axis of the star mobile 19.
  • the pin 19E is located slightly further from the axis of the watch hands than is the star mobile 19. So, when the pin 19E meets the star of the mobile 19, it rotates it in the same direction as the programming disc.
  • the toothing of the toothed sector 11A is an internal toothing (in other words, turned towards the axis of the needles).
  • the pins are arranged on the programming disc 25 in such a way that each encounter of one of the pins with a star-shaped mobile corresponds to a different angular position of the disc of programming.
  • the relationship between the position of the pins and that of the starred mobiles is such that the pins intervene in the order 23H, 19E, 20E, 21H, 22H, 22E, 21E, 23E, 20H and, finally, 19H, when the programming disc rotates clockwise.

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  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
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Description

DOMAINE DE L'INVENTIONFIELD OF THE INVENTION

La présente invention concerne une pièce d'horlogerie, dite universelle, dont le cadran permet de lire rapidement l'heure de différents fuseaux horaires. Elle concerne plus particulièrement une telle pièce d'horlogerie comprenant un premier cadran portant des indications géographiques correspondant aux différents fuseaux horaires et définissant un tour de 24 heures, et comprenant un deuxième cadran portant un tour d'heures de 24 heures, le deuxième cadran étant mobile concentriquement au premier cadran et étant agencé pour être entraîné en rotation au rythme d'un tour en 24 heures par le mouvement de la pièce d'horlogerie, les indications horaires étant disposées en regard des indications géographiques du premier cadran pour indiquer des heures locales.The present invention relates to a timepiece, known as a universal timepiece, the dial of which allows the time of different time zones to be read quickly. It relates more particularly to such a timepiece comprising a first dial bearing geographical indications corresponding to the different time zones and defining a 24-hour turn, and comprising a second dial carrying a 24-hour turn of hours, the second dial being mobile concentrically with the first dial and being arranged to be driven in rotation at the rate of one revolution in 24 hours by the movement of the timepiece, the time indications being arranged opposite the geographical indications of the first dial to indicate local times .

ART ANTERIEURPRIOR ART

On connaît des pièces d'horlogerie universelles correspondant à la définition ci-dessus. Le brevet suisse CH 270'085 notamment décrit une montre universelle qui comprend un cadran central fixe de douze heures au-dessus duquel tournent de manière conventionnelle des aiguilles d'heures de minutes et de secondes. Un premier cadran annulaire de vingt-quatre heures est monté rotatif autour du cadran central. Ce cadran annulaire est agencé pour être entraîné par le mouvement, dans le sens contraire des aiguilles de la montre, au rythme d'un tour en vingt-quatre heures. Il est encore synchronisé avec les aiguilles de façon à ce que le passage des indications 12 heures et 24 heures en positon «douze heures » de la montre se fasse à l'instant où les aiguilles sont superposées à douze heures. Un second cadran annulaire, portant des indications géographiques correspondant aux fuseaux horaires est monté rotatif autour du premier cadran annulaire. Il est agencé pour être déplacé manuellement au moyen d'une couronne dont la tige se termine par un pignon conique engrenant avec une denture périphérique du second cadran annulaire.Universal timepieces corresponding to the above definition are known. The Swiss patent CH 270'085 in particular describes a universal watch which comprises a central central dial of twelve hours above which conventionally rotate the hour hands of minutes and seconds. A first 24-hour annular dial is rotatably mounted around the central dial. This annular dial is arranged to be driven by movement, counterclockwise, at the rate of one revolution in twenty-four hours. It is still synchronized with the hands so that the passage of the 12-hour and 24-hour indications in the twelve position hours ”of the watch is made at the time when the hands are superimposed at twelve. A second annular dial, bearing geographical indications corresponding to the time zones is rotatably mounted around the first annular dial. It is arranged to be moved manually by means of a crown whose stem ends in a bevel gear meshing with a peripheral toothing of the second annular dial.

Pour connaître l'heure dans un lieu donné, l'utilisateur de cette montre de l'art antérieur doit se servir de la couronne pour faire tourner le second cadran annulaire et amener le nom du lieu où il se trouve en position « douze heures » de la montre. Les deux cadrans permettent alors de lire l'heure correspondant à chacun des fuseaux horaires du globe. Ainsi, comme illustré dans ce document antérieur, lorsqu'il est huit heures du soir à New York, il est une heure du matin à Paris, dix heures à Tokyo et dix-huit heures à Mexico.To know the time in a given place, the user of this watch of the prior art must use the crown to rotate the second annular dial and bring the name of the place where it is in the "twelve o'clock" position. of the watch. The two dials then make it possible to read the time corresponding to each of the time zones of the globe. Thus, as illustrated in this previous document, when it is eight o'clock in the evening in New York, it is one in the morning in Paris, ten in Tokyo and eighteen in Mexico.

Un problème constaté avec ce type de montres universelles concerne le passage de l'heure d'hiver à l'heure d'été et vice versa. En effet, en raison de ce changement d'heure bisannuel, le décalage horaire entre deux endroits n'est pas toujours constant. Au contraire, lorsque le changement d'heure n'a pas lieu en même temps dans les deux endroits considérés, le changement d'heure saisonnier s'accompagne de variations du décalage horaire. C'est habituellement le cas, en particulier, lorsque les deux endroits se trouvent, l'un, dans l'hémisphère nord et, l'autre, dans l'hémisphère sud. De plus, c'est, bien sûr, toujours le cas lorsque le pays où se trouve l'un des endroits ne pratique pas l'heure d'été, alors que le pays de l'autre endroit la pratique.A problem noted with this type of universal watches concerns the transition from winter time to summer time and vice versa. In fact, due to this biennial time change, the time difference between two places is not always constant. On the contrary, when the time change does not take place at the same time in the two places considered, the seasonal time change is accompanied by variations in the time difference. This is usually the case, in particular, when the two places are located, one in the northern hemisphere and the other in the southern hemisphere. In addition, this is, of course, always the case when the country where one of the places is located does not practice daylight saving time, while the country of the other place does.

A cause du problème susmentionné, les indications fournies par la plupart des montres universelles connues ne sont exactes que dans certaines situations standards, et sont fausses dans un certain nombre de situations atypiques.Because of the aforementioned problem, the indications provided by most known universal watches are only correct in certain standard situations, and are false in a number of atypical situations.

WO 2008/125535 A2 divulgue à la figure 3 une pièce d'horlogerie comprenant un cadran en rotation avec des indications géographiques (3) et un cadran des heures (31), les indications géographiques ayant les mêmes dates de changement de l'heure se trouvent sur un même anneau (36, 37, 38), qui peut être déplacé de manière mécanique. WO 2008/125535 A2 discloses to the figure 3 a timepiece comprising a rotating dial with geographical indications (3) and an hour dial (31), the geographical indications having the same time change dates are on the same ring (36, 37, 38), which can be moved mechanically.

BREF EXPOSE DE L'INVENTIONBRIEF STATEMENT OF THE INVENTION

Un but de la présente invention est de remédier aux inconvénients de l'art antérieur susmentionné. La présente invention atteint ce but en fournissant une pièce d'horlogerie universelle conforme à la revendication 1 annexée.An object of the present invention is to remedy the drawbacks of the above-mentioned prior art. The present invention achieves this object by providing a universal timepiece in accordance with claim 1 appended.

BREVES DESCRIPTION DES FIGURESBRIEF DESCRIPTION OF THE FIGURES

D'autres caractéristiques et avantages de la présente invention apparaîtront à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple non limitatif, et faite en référence aux dessins annexés dans lesquels :

  • la figure 1 est une vue en plan depuis le côté cadran d'une montre universelle conforme à un exemple ne faisant pas partie de l'invention ;
  • la figure 2 est un vue agrandie d'une partie de la figure 1, montrant notamment le premier et le deuxième cadran ;
  • la figure 3 est une vue en plan depuis le côté fond de la montre de la figure 1, la montre étant partiellement démontée pour laisser voir le disque de programmation ;
  • la figure 4 est une vue en coupe selon A-A de la figure 1 ;
  • la figure 5 est une vue semblable à celle de la figure 3, le disque de programmation, les secteurs dentés et les sautoirs ayant également été retirés de manière à laisser voir le support du premier cadran ;
  • la figure 6 est une vue semblable à celle de la figure 5 montrant également les secteurs dentés et les sautoirs :
  • les figures 7 et 8 sont deux vues schématiques en éclaté montrant les principaux éléments de la montre de la figue 1.
Other characteristics and advantages of the present invention will appear on reading the description which follows, given solely by way of nonlimiting example, and made with reference to the appended drawings in which:
  • the figure 1 is a plan view from the dial side of a universal watch according to an example not forming part of the invention;
  • the figure 2 is an enlarged view of part of the figure 1 , showing in particular the first and the second dial;
  • the figure 3 is a plan view from the back side of the watch of the figure 1 , the watch being partially disassembled to reveal the programming disc;
  • the figure 4 is a sectional view along AA of the figure 1 ;
  • the figure 5 is a view similar to that of the figure 3 , the programming disc, the toothed sectors and the necklaces having also been removed so as to reveal the support of the first dial;
  • the figure 6 is a view similar to that of the figure 5 also showing the toothed sectors and the necklaces:
  • the Figures 7 and 8 are two schematic exploded views showing the main elements of the watch in fig 1.

DESCRIPTION DETAILLEE D'UN MODE DE REALISATIONDETAILED DESCRIPTION OF AN EMBODIMENT

La figure 1 est une vue en plan depuis le côté cadran d'une montre universelle conforme à un exemple ne faisant pas partie de l'invention. Les figures 7 et 8 sont deux vues schématiques en éclaté montrant les principaux éléments de cette même montre. En se référant simultanément aux figures 1, 7 et 8, on peut voir que la montre représentée comporte une carrure 39 fermée sur le dessus par trois cadran. On voit tout d'abord un cadran annulaire fixe 44 qui porte un tour d'heures de 12 heures, et qui est agencé pour coopérer avec des aiguilles d'heures et de minutes respectivement référencées 41 et 42. Le cadran annulaire 44 entoure un premier cadran 3 formé par un support de cadran (ou planche) 9 qui a ici la forme d'un disque et qui porte des secteurs de cadran mobiles (11 à 15). Le premier cadran 3 est muni d'indications géographiques 5 qui font le tour du cadran et qui correspondent aux 24 fuseaux horaires de la planète. D'autre part, le premier cadran porte un deuxième cadran central (référencé 7) disposé concentriquement au premier cadran. Le deuxième cadran porte un tour d'heures de 24 heures prévu pour coopérer avec les indications géographiques du premier cadran pour indiquer des heures locales. Le deuxième cadran 7 est agencé pour être entraîné en rotation par le mouvement 46 de la montre dans le sens contraire des aiguilles. Précisons, que le deuxième cadran pourrait tout aussi bien tourner dans le même sens que les aiguilles. Dans ce cas, l'ordre de succession des heures sur le tour d'heures du cadran 7 serait également inversé. Le premier cadran 3 est agencé pour être commandé manuellement en rotation par un organe manuel de commande actionnable depuis l'extérieur de la carrure. Cet organe de commande comprend une couronne 53 solidaire d'un pignon 55. Le pignon 55 est agencé pour engrener avec une denture périphérique de chant 57 du support 9. On comprendra que cet arrangement permet au porteur de la montre de faire tourner le premier cadran 3, et donc les indications géographiques 5 qu'il porte, en actionnant la couronne 53.The figure 1 is a plan view from the dial side of a universal watch according to an example not forming part of the invention. The Figures 7 and 8 are two views exploded diagrams showing the main elements of this same watch. By referring simultaneously to figures 1 , 7 and 8 , we can see that the watch shown has a middle 39 closed on top by three dials. First of all, we see a fixed annular dial 44 which carries a 12-hour turn of hours, and which is arranged to cooperate with hour and minute hands respectively referenced 41 and 42. The annular dial 44 surrounds a first dial 3 formed by a dial support (or plate) 9 which here has the shape of a disc and which carries movable dial sectors (11 to 15). The first dial 3 is provided with geographical indications 5 which go around the dial and which correspond to the 24 time zones of the planet. On the other hand, the first dial carries a second central dial (referenced 7) arranged concentrically with the first dial. The second dial carries a 24-hour hour lap intended to cooperate with the geographical indications of the first dial to indicate local hours. The second dial 7 is arranged to be driven in rotation by the movement 46 of the watch in the counterclockwise direction. Note that the second dial could just as easily turn in the same direction as the hands. In this case, the sequence of hours on the hour turn of the dial 7 would also be reversed. The first dial 3 is arranged to be controlled manually in rotation by a manual control member operable from the outside of the middle part. This control member comprises a crown 53 secured to a pinion 55. The pinion 55 is arranged to mesh with a peripheral edge teeth 57 of the support 9. It will be understood that this arrangement allows the wearer of the watch to rotate the first dial 3, and therefore the geographical indications 5 which he wears, by actuating the crown 53.

On peut encore voir sur la figure 8 un disque de programmation 25 qui est monté sous le support 9 du premier cadran 3, coaxialement avec ce dernier. Comme on le verra plus en détail plus loin, le disque de programmation 25 fait partie des moyens manuelles qui, selon l'invention, sont agencés pour décaler sélectivement certaines des dites indications géographiques de 1/24ème de tour. A cet effet, la montre de l'exemple illustré comporte un organe de commande dédié sous la forme d'une couronne rotative 27 montée à quatre heures dans la carrure de la montre. En se référant également à la figure 3, on peut voir que la couronne 27 est solidaire en rotation d'un pignon 29 arrangé à l'intérieur de la boîte de montre. Le pignon 29 engraine avec une denture périphérique 31 du disque de programmation 25. Un ressort-sautoir 51 (figure 6) est en outre agencé pour solidariser le disque de programmation du premier cadran 3. Précisons que le sautoir 51 ne doit pas être trop fort, de manière à ce que, lorsque la couronne 27 est actionnée, le disque 25 puisse tourner sans entraîner le cadran 3 avec lui.We can still see on the figure 8 a programming disc 25 which is mounted under the support 9 of the first dial 3, coaxially with the latter. As will be seen in more detail below, the programming disc 25 is one of the manual means which, according to the invention, are arranged to selectively shift some of the said geographical indications by 1/24 th of a turn. To this end, the watch of the example illustrated comprises a dedicated control member in the form of a rotary crown 27 mounted at four o'clock in the middle of the watch. Referring also to the figure 3 , it can be seen that the crown 27 is integral in rotation with a pinion 29 arranged inside the watch case. The pinion 29 engages with a peripheral toothing 31 of the programming disc 25. A jumper spring 51 ( figure 6 ) is also arranged to secure the programming disc of the first dial 3. Note that the jumper 51 should not be too strong, so that, when the crown 27 is actuated, the disc 25 can rotate without driving the dial 3 with him.

La carrure 39 est également agencée pour recevoir le mouvement 46 de la montre. De façon classique, le mouvement de la montre comporte une chaussée et un canon des heures concentriques (non représentés) qui portent respectivement les aiguilles de minutes 42 et des heures 41. Le mouvement 46 comporte encore un canon de 24 heures concentrique à l'axe des aiguilles et qui est agencé pour entraîner le deuxième cadran 7 au rythme d'un tour en 24 heures. Une ouverture 48 est encore aménagée dans la carrure 39 pour permettre le passage de la tige 47 de remontoir et de mise à l'heure du mouvement. Cette tige se termine par une couronne moletée 50 (figure 1).The middle part 39 is also arranged to receive the movement 46 of the watch. Conventionally, the watch movement comprises a carriageway and a concentric hour cannon (not shown) which respectively carry the 42 minute and 41 hour hands. The movement 46 also includes a 24 hour cannon concentric with the axis needles and which is arranged to drive the second dial 7 at the rate of one revolution in 24 hours. An opening 48 is further arranged in the middle part 39 to allow the passage of the winding stem 47 and setting the time of the movement. This rod ends with a knurled crown 50 ( figure 1 ).

La figure 2 est un vue agrandie d'une partie de la figure 1, montrant en particulier le premier et le deuxième cadran (respectivement référencés 3 et 7). Sur cette vue agrandie, on voit que les secteurs de cadran mobiles 11, 12, 13, 14 et 15 portent certaines des indications géographiques 5, alors que d'autres indications géographiques sont apposées directement sur la planche 9 du cadran. D'autre part, la planche 9 est percée d'un certain nombres d'ouvertures oblongues 17 (mieux visibles dans la figure 5) qui définissent des arcs de cercles concentriques au cadran. Comme on le verra plus en détail plus loin, les différents secteurs 11 à 15 sont agencés pour coulisser chacun dans l'une des ouvertures oblongues, de manière à pouvoir se décaler angulairement d'un 1/24ème de tour par rapport à la planche du premier cadran 3.The figure 2 is an enlarged view of part of the figure 1 , showing in particular the first and the second dial (respectively referenced 3 and 7). In this enlarged view, it can be seen that the movable dial sectors 11, 12, 13, 14 and 15 carry some of the geographical indications 5, while other geographical indications are affixed directly on the plate 9 of the dial. On the other hand, the plate 9 is pierced with a number of oblong openings 17 (better visible in the figure 5 ) which define arcs of concentric circles on the dial. As will be seen in more detail below, the different sectors 11 to 15 are arranged to slide each in one of the oblong openings, so as to be able to offset angularly by a 1/24 th of a turn relative to the board of the first dial 3.

Les indications géographiques 5 qui sont portées par un même secteur de cadran mobile désignent des lieux où les passages entre heure d'été et heure d'hiver ont lieu à la même date dans un sens comme dans l'autre. Par exemple, on peut voir sur la figure 2 que le secteur de cadran référencé 12 porte, de gauche à droite, les indications géographiques « Açores », « Londres », « Genève » et « Helsinki ». On peut vérifier que le changement d'heure a bien lieu aux mêmes dates dans ces quatre lieux. En effet, il a été décidé que, jusqu'à nouvel ordre, le passage à l'heure d'été aurait lieu le dernier dimanche de mars, et le retour à l'heure d'hiver aurait lieu le dernier dimanche d'octobre dans cette région du globe. On peut voir encore sur la figure 2 que le secteur de cadran référencé 11 porte, de gauche à droite, les indications géographiques « Anchorage », « L.A. », « Calgary », « Chicago », « N.Y. » et « Hallifax ». Ces six villes sont toutes situées aux Etats-Unis ou au Canada et, dans ces régions, le passage à l'heure d'été a actuellement lieu le deuxième dimanche de mars, alors que le retour à l'heure d'hiver a lieu le premier dimanche de novembre.The geographical indications 5 which are carried by the same sector of mobile dial designate places where the passages between summer time and winter time take place on the same date in one direction as in the other. For example, we can see on the figure 2 that the dial sector referenced 12 carries, from left to right, the geographical indications "Azores", "London", "Geneva" and "Helsinki". We can verify that the time change takes place on the same dates in these four places. Indeed, it has been decided that, until further notice, the changeover to summer time will take place on the last Sunday in March, and the return to winter time will take place on the last Sunday in October in this region of the globe. We can still see on the figure 2 that the dial sector referenced 11 carries, from left to right, the geographical indications “Anchorage”, “LA”, “Calgary”, “Chicago”, “NY” and “Hallifax”. These six cities are all located in the United States or Canada and, in these regions, the changeover to summer time currently takes place on the second Sunday in March, while the return to winter time takes place the first Sunday in November.

Trois autres secteurs coulissants (référencés 13, 14 et 15) portent chacun une unique indication géographique. Chacune de ces trois indications géographiques correspond à un lieu de l'hémisphère sud où, comme on le sait bien, les saisons sont inversées par rapport à l'hémisphère nord. Par exemple, à Sydney (secteur de cadran 13) et dans le sud de l'Australie, le passage à l'heure d'été a lieu le premier dimanche d'octobre, et le retour à l'heure d'hiver a lieu le premier dimanche d'avril de l'année suivante. A Auckland (secteur de cadran 14) et dans le reste de la Nouvelle-Zélande, le passage à l'heure d'été a lieu le dernier dimanche de septembre, et le retour à l'heure d'hiver à lieu le premier dimanche d'avril de l'année suivante. Finalement à Rio de Janeiro, (secteur de cadran 15), le passage à l'heure d'été a lieu le troisième dimanche d'octobre, et le retour à l'heure d'hiver a lieu le troisième ou le quatrième dimanche de février de l'année suivante.Three other sliding sectors (referenced 13, 14 and 15) each carry a unique geographical indication. Each of these three geographical indications corresponds to a place in the southern hemisphere where, as is well known, the seasons are reversed with respect to the northern hemisphere. For example, in Sydney (sundial 13) and in southern Australia, daylight saving time occurs on the first Sunday in October, and daylight saving time occurs the first Sunday in April of the following year. In Auckland (area of dial 14) and in the rest of New Zealand, the changeover to summer time takes place on the last Sunday in September, and the return to winter time takes place on the first Sunday April of the following year. Finally in Rio de Janeiro, (area of dial 15), the transition to summer time takes place on the third Sunday in October, and the return to winter time takes place on the third or fourth Sunday in February of the following year.

On peut voir sur la figure 2 que le premier cadran annulaire 3 porte encore, de gauche à droite, les indications géographiques « Abidjan », « Tripoli », « Pretoria », « Djibouti », « Moscou », « Karachi », « Dacca », « Bangkok », « Hong Kong », « Tokyo », « Brisbane », « Noumea », « Midway », « Samoa », « Hawaï », « Iles Gambier », « Iles Henderson », « Culiacan », « Galapagos », « Lima », « Caracas » et « Buenos Aires ». Ces dernières indications géographiques correspondent à des lieux où l'on ne pratique pas l'heure d'été. Comme il n'y a donc pas de changement d'heure saisonnier dans ces régions, les indications géographiques correspondantes n'ont pas besoin d'être portées par des secteurs de cadran mobiles, et peuvent donc être portées directement sur la planche 9 du premier cadran.We can see on the figure 2 that the first annular dial 3 still carries, from left to right, the geographical indications "Abidjan", "Tripoli", "Pretoria", "Djibouti", "Moscow", "Karachi", "Dacca", "Bangkok", " Hong Kong "," Tokyo "," Brisbane "," Noumea "," Midway "," Samoa "," Hawaii "," Gambier Islands "," Henderson Islands "," Culiacan "," Galapagos "," Lima ", "Caracas" and "Buenos Aires". These latest geographical indications correspond to places where summer time is not practiced. As there is therefore no seasonal time change in these regions, the corresponding geographical indications do not need to be carried by mobile dial sectors, and can therefore be carried directly on plate 9 of the first dial.

La figure 5 est une vue depuis le côté fond de la montre, le fond et le mouvement ayant été retiré de manière à offrir une vue de dessous de la planche 9 du cadran 3. Comme déjà mentionné en relation avec les figures 1 et 2, la planche 9 est percée d'un certain nombres d'ouvertures oblongues 17 qui définissent des arcs de cercles concentriques au cadran. Dans le présent exemple, ces différents arcs ne sont pas tous sous-tendus par le même cercle. Un premier cercle en sous-tend quatre, alors que le cinquième est sur un cercle de plus grand diamètre. On peut voir encore sur la figure 5 que la planche 9 porte également cinq petits mobiles étoilés (respectivement référencés 19, 20, 21, 22, et 23) formés chacun d'une étoile à quatre branches et d'une petite roue dentée assemblées en position coaxiale. Les cinq petits mobiles étoilés sont montés rotatifs sur la planche 9 et, comme le montre la figure 5, les distances les séparant de l'axe de la montre sont toutes différentes dans le présent exemple.The figure 5 is a view from the back side of the watch, the back and the movement having been removed so as to offer a bottom view of the plate 9 of the dial 3. As already mentioned in relation to the figures 1 and 2 , the plate 9 is pierced with a number of oblong openings 17 which define arcs of concentric circles on the dial. In the present example, these different arcs are not all subtended by the same circle. A first circle underpins four, while the fifth is on a larger diameter circle. We can still see on the figure 5 that the plate 9 also carries five small starred mobiles (respectively referenced 19, 20, 21, 22, and 23) each formed by a star with four branches and a small toothed wheel assembled in coaxial position. The five small star mobiles are rotatably mounted on plate 9 and, as shown in the figure 5 , the distances separating them from the axis of the watch are all different in the present example.

Comme on l'a dit plus haut, les secteurs de cadran mobiles 11, 12, 13, 14 et 15 sont agencés pour coulisser dans les ouvertures en arc de cercle 17. A cet effet, les secteurs de cadran mobiles comportent des pieds (non représentés) qui sont insérés dans les ouvertures oblongues de manière à ce que l'extrémité des pieds ressorte sous la planche du premier cadran. La figure 6 est une vue semblable à la figure 5 montrant en outre cinq secteurs dentés (référencés respectivement 11A, 12A, 13A, 14A et 15A). Sur la base de la figure 6, on peut comprendre que les secteurs de cadran mobiles sont chacun solidaires d'un des secteurs dentés par l'intermédiaire des pieds traversant les ouvertures 17 en arc de cercle (lors de l'assemblage de la pièce d'horlogerie, on peut par exemple procédé en insérant d'abord les pieds dans les ouvertures de la planche, et en chassant ensuite l'extrémité distale de chaque pied dans un trou aménagé à cet effet dans un des secteurs dentés). Comme on peut encore le voir sur la figure 6, chacun des secteurs dentés 11A, 12A, 13A, 14A et 15A engrène avec la denture d'un des petits mobiles étoilés (respectivement 19, 20, 21, 22 et 23). Ainsi, une rotation d'un des petits mobiles étoilés aura pour effet de faire coulisser le secteur de cadran correspondant dans une des ouvertures de la planche du premier cadran. Finalement, la figure 6 montre encore cinq ressorts-sautoirs 49 qui sont agencés pour coopérer avec les cinq secteurs de cadran mobiles. On comprendra que grâce, d'une part, à la longueur limitée des ouvertures en arc de cercle 17, et d'autre part, à la présence des sautoirs 49, les secteurs de cadran mobiles 11 à 18 ne peuvent chacun occuper que deux positions stables qui sont séparées l'une de l'autre par 1/24ème de tour.As mentioned above, the movable dial sectors 11, 12, 13, 14 and 15 are arranged to slide in the openings in an arc of a circle 17. For this purpose, the movable dial sectors include feet (not shown) which are inserted into the oblong openings so that the ends of the feet protrude under the board of the first dial. The figure 6 is a view similar to the figure 5 further showing five toothed sectors (referenced respectively 11A, 12A, 13A, 14A and 15A). Based on the figure 6 , it can be understood that the movable dial sectors are each integral with one of the toothed sectors by means of the feet passing through the openings 17 in an arc of a circle (during the assembly of the timepiece, it is for example possible process by first inserting the feet into the openings of the board, and then driving the distal end of each foot into a hole provided for this purpose in one of the toothed sectors). As we can still see on the figure 6 , each of the toothed sectors 11A, 12A, 13A, 14A and 15A meshes with the teeth of one of the small starred mobiles (respectively 19, 20, 21, 22 and 23). Thus, a rotation of one of the small starred mobiles will cause the corresponding dial sector to slide in one of the openings on the board of the first dial. Finally, the figure 6 further shows five jumper springs 49 which are arranged to cooperate with the five movable dial sectors. It will be understood that thanks, on the one hand, to the limited length of the openings in a circular arc 17, and on the other hand, to the presence of the jumpers 49, the movable dial sectors 11 to 18 can each occupy only two positions stable which are separated from each other by 1/24 th of a turn.

La figure 3 selon la présente invention, est une vue semblable à celles des figures 5 et 6, mais dans laquelle on montre également un disque de programmation 25 dont la fonction est de déterminer l'ordre dans lequel les différents secteurs de cadran mobiles 11, 12, 13, 14 et 15 sont actionnés. Dans cette vue depuis le côté fond de la montre, le disque de programmation masque presque entièrement la planche 9 du premier cadran, dont seule la denture périphérique 57 est visible. On comprendra de plus que les secteurs dentés 11A, 12A, 13A, 14A et 15A et les petits mobiles étoilés 19, 20, 21, 22 et 23 qui sont arrangés entre le disque de programmation 25 est la planche 9 ne sont pas visibles non plus sur la figure 3. On peut voir toutefois que le disque de programmation est doté de dix ergots référencés 19H, 19E, 20H, 20E, 21E, 21H, 22E, 22H, 23E et 23H. Précisons que les ergots sont disposés sur la face du disque de programmation 25 tournée vers la planche 9, et qu'il ne sont donc pas visibles à proprement parler sur la figure 3. Toutefois, dans le présent exemple, les ergots sont chassés dans des trous dans le disque de programmation. Ce sont en fait les trous dans lesquels les ergots sont chassés qui sont visibles dans la figure 3.The figure 3 according to the present invention, is a view similar to those of figures 5 and 6 , but in which a programming disk 25 is also shown, the function of which is to determine the order in which the various sectors of mobile dial 11, 12, 13, 14 and 15 are actuated. In this view from the back side of the watch, the programming disc almost entirely hides the plate 9 of the first dial, of which only the peripheral toothing 57 is visible. It will also be understood that the toothed sectors 11A, 12A, 13A, 14A and 15A and the small star mobiles 19, 20, 21, 22 and 23 which are arranged between the programming disc 25 and the board 9 are not visible either on the figure 3 . We can see, however, that the programming disc has ten pins referenced 19H, 19E, 20H, 20E, 21E, 21H, 22E, 22H, 23E and 23H. Note that the pins are arranged on the face of the programming disc 25 facing plate 9, and that they are therefore not strictly speaking visible on the figure 3 . However, in the present example, the pins are driven into holes in the programming disc. It is in fact the holes in which the pins are driven which are visible in the figure 3 .

On peut voir sur la figure 3 que la couronne 27 est solidaire en rotation d'un pignon 29 arrangé à l'intérieur de la boîte de montre. Le pignon 29 engraine avec une denture périphérique 31 du disque de programmation 25. Dans le présent exemple le disque de programmation est prévu pour tourner dans le même sens que les aiguilles de la montre lorsqu'il est actionné. Des moyens connus de l'homme du métier (non représentés) sont de préférence encore prévus pour empêcher la rotation du disque de programmation dans le sens contraire des aiguilles de la montre. On comprendra toutefois, que l'invention ne se limite pas au cas où le disque de programmation doit être actionné dans le sens des aiguilles de la montre. Au contraire, selon d'autres modes de réalisation, le disque de programmation pourrait être agencé pour tourner dans le sens contraire des aiguilles de la montre lorsqu'il est actionné. Dans ce cas, les ergots seraient arrangés dans une configuration différente sur le disque.We can see on the figure 3 that the crown 27 is integral in rotation with a pinion 29 arranged inside the watch case. The pinion 29 engages with a peripheral toothing 31 of the programming disc 25. In the present example the programming disc is designed to rotate in the same direction as the hands of the watch when it is actuated. Means known to those skilled in the art (not shown) are preferably still provided to prevent the rotation of the programming disc in the counterclockwise direction. It will be understood, however, that the invention is not limited to the case where the programming disc must be actuated in the clockwise direction. On the contrary, according to other embodiments, the programming disc could be arranged to rotate anticlockwise when it is actuated. In this case, the pins would be arranged in a different configuration on the disc.

Comme on peut l'observer sur la figure 3, dans l'exemple illustré, les distances respectives séparant les dix ergots de l'axe de la montre sont toutes différentes. De plus, ces distances vont croissantes dans l'ordre des ergots 19H, 19E, 20H, 20E, 21E, 21H, 22E, 22H, 23E et, finalement, 23H. Lorsque le porteur de la montre fait tourner le disque de programmation 25 en actionnant l'organe de commande 27, chacun des ergots portés par le disque se déplacent selon une trajectoire circulaire dont le rayon est égal à la distance séparant cet ergot de l'axe des aiguilles de la montre. On a déjà noté plus haut que les distances séparant les cinq mobiles étoilés de l'axe de la montre étaient également toutes différentes. En effet, chaque mobile étoilé est arrangé de manière à ce que son étoile intercepte la trajectoire de deux ergots bien précis. Ainsi, le mobile étoilé 19 est arrangé pour intercepter les trajectoires circulaires des ergots 19H et 19E, le mobile étoilé 20 est arrangé pour intercepter les trajectoires des ergots 20H et 20E, et ainsi de suite.As can be seen on the figure 3 , in the example illustrated, the respective distances separating the ten pins from the axis of the watch are all different. In addition, these distances are increasing in the order of the lugs 19H, 19E, 20H, 20E, 21E, 21H, 22E, 22H, 23E and, finally, 23H. When the wearer of the watch rotates the programming disc 25 by actuating the control member 27, each of the lugs carried by the disc move along a circular trajectory whose radius is equal to the distance separating this lug from the axis watch hands. We have already noted above that the distances separating the five star mobiles from the axis of the watch were also all different. Indeed, each mobile the star is arranged so that its star intercepts the trajectory of two very precise pins. Thus, the starred mobile 19 is arranged to intercept the circular trajectories of the lugs 19H and 19E, the starred mobile 20 is arranged to intercept the trajectories of the lugs 20H and 20E, and so on.

L'ergot 19H est situé légèrement plus proche de l'axe des aiguilles de la montre que ne l'est l'axe du mobile étoilé 19. Ainsi, on comprendra que, lorsque l'ergot 19H tourne et qu'il rencontre l'étoile du mobile 19, il la fait tourner d'un quart de tour dans le sens contraire au sens de rotation du disque de programmation. Inversement, l'ergot 19E est situé légèrement plus loin de l'axe des aiguilles de la montre que ne l'est le mobile étoilé 19. Ainsi, lorsque l'ergot 19E rencontre l'étoile du mobile 19, il la fait tourner dans le même sens que le disque de programmation. De plus, Comme on peut encore le voir sur la figure 2, la denture du secteur denté 11A est une denture intérieure (autrement dit, tournée en direction de l'axe des aiguilles). Dans ces conditions, on comprendra que, lorsque le mobile étoilé 19 entraîne le secteur denté 11A, ce dernier tourne dans le même sens que le mobile étoilé. Dans ces conditions, lorsque l'ergot 19E rencontre l'étoile du mobile 19, et que ce dernier effectue par conséquent une rotation d'un quart de tour dans le sens des aiguilles de la montre, cette rotation a pour effet de faire coulisser le secteur de cadran mobile 11, dans le sens des aiguilles de la montre également. Cela revient à dire que l'ergot 19E fait passer le secteur de cadran mobile 11 à l'heure d'été. Concernant l'ergot 19H, c'est l'inverse. En effet, comme on l'a vu, l'ergot 19H fait tourner le mobile étoilé 19 en sens inverse. Ainsi, on comprendra que l'ergot 19H est agencé pour faire repasser le secteur de cadran mobile 11 à l'heure d'hiver lorsqu'il rencontre le mobile étoilé.The pin 19H is located slightly closer to the axis of the watch hands than is the axis of the star mobile 19. Thus, it will be understood that, when the pin 19H turns and it meets the star of mobile 19, it rotates it a quarter of a turn in the opposite direction to the direction of rotation of the programming disc. Conversely, the pin 19E is located slightly further from the axis of the watch hands than is the star mobile 19. So, when the pin 19E meets the star of the mobile 19, it rotates it in the same direction as the programming disc. In addition, As can still be seen on the figure 2 , the toothing of the toothed sector 11A is an internal toothing (in other words, turned towards the axis of the needles). Under these conditions, it will be understood that, when the star-shaped mobile 19 drives the toothed sector 11A, the latter turns in the same direction as the star-shaped mobile. Under these conditions, when the lug 19E meets the star of the mobile 19, and that the latter consequently performs a rotation of a quarter turn clockwise, this rotation has the effect of sliding the movable dial sector 11, also clockwise. This amounts to saying that the pin 19E switches the sector of the mobile dial 11 to summer time. Regarding the ergot 19H, it is the opposite. Indeed, as we have seen, the pin 19H rotates the star mobile 19 in the opposite direction. Thus, it will be understood that the pin 19H is arranged to iron the mobile dial sector 11 at winter time when it meets the star mobile.

En se référant à nouveau aux figures 3 et 5, on peut encore observer que les ergots sont disposés sur le disque de programmation 25 de telle manière que chaque rencontre d'un des ergots avec un mobile étoilé corresponde à une position angulaire différente du disque de programmation. De plus, la relation entre la position des ergots et celle des mobiles étoilés est telle que les ergots interviennent dans l'ordre 23H, 19E, 20E, 21 H, 22H, 22E, 21E, 23E, 20H et, enfin, 19H, lorsque le disque de programmation tourne dans le sens des aiguilles de la montre. Précisons que les moyens manuelles qui viennent d'être décrit permettent de commander correctement les changements aller et retour entre l'heure d'hiver et l'heure d'été même si les dates de ses changements varient d'une année à l'autre, pour autant que la succession des changements d'heure dans les différents lieu indiqués sur la montre conserve toujours le même ordre. Précisons toutefois que, si une décision politique venait à altérer cette ordre de succession des changements d'heure, il suffirait de changer la roue de programmation 25 pour adapter la montre à la nouvelle situation.Referring again to Figures 3 and 5 , it can also be observed that the pins are arranged on the programming disc 25 in such a way that each encounter of one of the pins with a star-shaped mobile corresponds to a different angular position of the disc of programming. In addition, the relationship between the position of the pins and that of the starred mobiles is such that the pins intervene in the order 23H, 19E, 20E, 21H, 22H, 22E, 21E, 23E, 20H and, finally, 19H, when the programming disc rotates clockwise. It should be noted that the manual means which have just been described make it possible to correctly control the outward and return changes between winter time and summer time even if the dates of its changes vary from year to year , provided that the succession of time changes in the different places indicated on the watch always keeps the same order. However, it should be noted that, if a political decision were to alter this order of successive time changes, it would suffice to change the programming wheel 25 to adapt the watch to the new situation.

Claims (3)

  1. A universal timepiece comprising a first dial (3) bearing geographical labels (5) which correspond to various time zones and which define a circuit of 24 hours, and comprising a second 24-hour dial (7) which is concentric to the first dial and arranged to be driven in rotation by the movement of the timepiece, the second dial bearing time markings arranged opposite geographical labels of the first dial in order to indicate local times, the timepiece comprising manual means (27, 29, 31, 25, 19, 19H, 19E, 20, 20H, 20E, 21, 21E, 21H, 22, 22E, 22H, 23, 23E, 23H, 11, 11A, 12, 12A, 13, 13A, 14, 14A, 15, 15A, 17) comprising a manual control member (27, 31) which can be activated from the outside of the timepiece and moveable dial sectors (11, 12, 13, 14, 15) which are borne by the first dial (3) and provided in order to be controlled by the manual control member in order to be shifted angularly by 1/24th of a revolution relative to the first dial, the moveable dial sectors bearing said geographical labels (5) which correspond to places where summertime is implemented and to places where wintertime is implemented, characterised in that the second 24-hour dial (7) is provided to be driven in rotation by the horological movement, and in that the manual means further comprise, on the one hand, a plurality of stars (19, 29, 21, 22, 23) which are fixed rotatably to the first dial (3), each of said stars being connected kinematically to one of the moveable dial sectors (11, 12, 13, 14, 15), and on the other hand, a programming disc (25) which is provided in order to be activated in rotation by the manual control member (27, 29), the programming disc bearing a plurality of pins (19H, 19E, 20H, 20E, 21E, 21H, 22E, 22H, 23E, 23H) which are provided in order each to cooperate with one of the stars in order to make it turn when the programming disc is activated in rotation, in order to make it possible to change, by one hour, the local time associated with the geographical labels borne by the moveable dial sectors during a change from wintertime to summertime or from summertime to wintertime.
  2. The universal timepiece of claim 1, characterised in that at least one (11, 12) of said moveable dial sectors bears several geographical labels (5) which correspond to different time zones, the geographical labels borne by the same moveable dial sector designating places where the changes between summertime and wintertime, as well as between wintertime and summertime are on the same dates.
  3. The universal timepiece of claim 1 or 2, characterised in that each of said stars (19, 29, 21, 22, 23) is associated with two of said pins (19H, 19E, 20H, 20E, 21E, 21H, 22E, 22H, 23E, 23H), one of the two pins being provided in order to make the star turn in one direction, and the other of the two pins being provided in order to make the star turn in the reverse direction.
EP12710477.6A 2011-03-15 2012-03-15 Universal timepiece Active EP2686742B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12710477.6A EP2686742B1 (en) 2011-03-15 2012-03-15 Universal timepiece

Applications Claiming Priority (3)

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EP11158321 2011-03-15
EP12710477.6A EP2686742B1 (en) 2011-03-15 2012-03-15 Universal timepiece
PCT/EP2012/054590 WO2012123550A2 (en) 2011-03-15 2012-03-15 Universal timepiece

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EP2686742A2 EP2686742A2 (en) 2014-01-22
EP2686742B1 true EP2686742B1 (en) 2020-07-01

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EP (1) EP2686742B1 (en)
JP (1) JP5663675B2 (en)
CN (1) CN103534653B (en)
CH (1) CH706348B1 (en)
HK (1) HK1194156A1 (en)
RU (1) RU2598558C2 (en)
WO (1) WO2012123550A2 (en)

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EP2720090B1 (en) 2012-09-20 2015-05-27 The Swatch Group Research and Development Ltd. Universal timepiece
EP2746872B1 (en) * 2012-12-19 2017-03-15 Chopard Technologies SA Clock piece with universal time display
USD801846S1 (en) * 2016-02-10 2017-11-07 United Global Sourcing, Inc. Bezel for grilling watch
HK1252182A2 (en) * 2018-07-06 2019-05-17 Pengelly Co Ltd Watch with geometric codes

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US369462A (en) * 1887-09-06 Universal clock
US927472A (en) * 1909-07-13 Emanuel Aufiero Timepiece.
US2148907A (en) * 1936-04-18 1939-02-28 Kidd George Watson Universal time indicating attachment for clocks
US2169956A (en) * 1937-05-17 1939-08-15 Howard A Leatart World time indicating device
CH270085A (en) 1948-02-04 1950-08-15 Cottier Louis Universal watch.
US5197043A (en) * 1991-03-29 1993-03-23 Strader Verne A Night and day earth clock calendar
CH684619B5 (en) * 1992-07-17 1995-05-15 Longines Montres Comp D Timepiece universal time display.
JP3150852B2 (en) * 1993-11-05 2001-03-26 セイコーインスツルメンツ株式会社 Electronic clock
KR100205711B1 (en) * 1996-08-28 1999-07-01 이세엽 World clock
MXPA01011192A (en) * 1999-05-19 2003-07-14 Timespace System Co Ltd Universal timepiece from which latitude and longitude can be determined.
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WO2004023223A1 (en) * 2002-09-06 2004-03-18 Citizen Watch Co., Ltd. Radio correction clock and control method thereof
CH705113B1 (en) 2007-04-11 2012-12-31 Kurt Loosli Mehrfachzeitzonenuhr.
US7733743B2 (en) * 2007-10-23 2010-06-08 Boaz Baeksung Choi Comprehensive time determining system
CN201222175Y (en) * 2008-04-29 2009-04-15 徐丽 Novel world-time clock
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US9116507B2 (en) 2015-08-25
JP2014508304A (en) 2014-04-03
EP2686742A2 (en) 2014-01-22
WO2012123550A2 (en) 2012-09-20
RU2013145937A (en) 2015-04-20
WO2012123550A3 (en) 2012-11-08
RU2598558C2 (en) 2016-09-27
CN103534653A (en) 2014-01-22
JP5663675B2 (en) 2015-02-04
CN103534653B (en) 2016-05-04
HK1194156A1 (en) 2014-10-10
CH706348B1 (en) 2022-02-15
US20140003198A1 (en) 2014-01-02

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