EP1413934A1 - Timepiece with analog display means associated to AM-PM indication means - Google Patents

Timepiece with analog display means associated to AM-PM indication means Download PDF

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Publication number
EP1413934A1
EP1413934A1 EP02079402A EP02079402A EP1413934A1 EP 1413934 A1 EP1413934 A1 EP 1413934A1 EP 02079402 A EP02079402 A EP 02079402A EP 02079402 A EP02079402 A EP 02079402A EP 1413934 A1 EP1413934 A1 EP 1413934A1
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EP
European Patent Office
Prior art keywords
hour hand
timepiece
time
disc
axis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP02079402A
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German (de)
French (fr)
Inventor
Gilomen Beat
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ETA Manufacture Horlogere Suisse SA
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ETA Manufacture Horlogere Suisse SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ETA Manufacture Horlogere Suisse SA filed Critical ETA Manufacture Horlogere Suisse SA
Priority to EP02079402A priority Critical patent/EP1413934A1/en
Publication of EP1413934A1 publication Critical patent/EP1413934A1/en
Withdrawn legal-status Critical Current

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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
    • G04B19/23—Arrangements for indicating different local apparent times; Universal time pieces by means of additional hands or additional pairs of hands

Definitions

  • the present invention relates to a timepiece comprising an analog time display arranged so that the hour hand makes one revolution in twelve hours.
  • the present invention relates to the display of the time of a second time zone different from the time zone in which the user of the timepiece is located.
  • the display of a second time zone using a hand performing a revolution in twelve hours poses the known problem of AM / PM or day-night determination relating to the time displayed.
  • One solution to this problem consists in providing for the display of the time of this second time zone by an hour hand performing one revolution in twenty-four hours.
  • an object of the present invention is to provide the indication of the local time in a second time zone using an hour hand performing one revolution in twelve hours and associated with means for indicating the AM / PM or day-night information with very good readability for the user.
  • Another object of the invention is to provide such a display using a relatively simple and inexpensive mechanism.
  • the timepiece according to the invention comprises a disc having a visible surface and defining a geometric axis of rotation which coincides with the axis of the hour hand, this disc being driven by means of training so as to complete one revolution in twenty-four hours in the same direction as the said hour hand.
  • the visible surface of said disc visually defines two half-discs positioned relative to said hour hand to indicate the AM-PM or day-night information relating to the time displayed by this hour hand.
  • Figure 1 shows a part according to the invention at four different times of a day respectively in Figures 1a) to 1d).
  • the timepiece presents an analog display of two different time zones.
  • the time of the first time zone is displayed by a set of central hands 4.
  • the time of the second time zone is displayed by a set of hands 6 offset relative to the central axis of the dial 8.
  • the present invention relates to the second display 6 generally used for displaying the time in a second time zone different from that in which the user of the timepiece is located.
  • the second set of hands 6 is driven so that the hour hand makes one revolution in twelve hours, similar to the first set of hands.
  • a disc 10 Under the second set of hands is provided a disc 10 whose geometric axis of rotation coincides with the axis of the hour hand 12 of the second set.
  • This disc 10 is driven by drive means, in particular such as shown in Figure 2, so as to make a revolution in twenty-four hours in the same direction as the needle 12.
  • the visible surface 14 visually defines two half-discs 15 and 16 used to indicate whether the displayed time is in the anteromidial period (AM) or in the post-meridian period (PM), in a variant not shown here, or if this displayed time corresponds to the diurnal period (day) or the nocturnal period (night ), as is the case in the variant shown in Figure 1.
  • the disc 10 is positioned relative to the hour hand 12 so that the position of this hand relative to the disc indicates directly in which period is the time displayed. More precisely, the information is given by the superposition of the hour hand 12 with one of the two half-discs 15 and 16. It will be noted here that other graphic representations making it possible to visually delimit two half-discs are possible. .
  • the time indicated corresponds to sunrise, that is to say at six in the morning in the second time zone in question.
  • Figure 1b) corresponds to approximately noon whereas
  • Figure 1c) corresponds approximately to sunset, that is to say approximately six in the evening.
  • Figure 1d) corresponds to midnight in this second time zone.
  • FIG 2 is shown schematically in section a particular embodiment of the drive means of the disc 10 according to the invention.
  • This disc is pierced in its center and mounted freely around the barrel 22 of the hour hand 12.
  • the barrel 22 is terminated by a wheel 24 which meshes with the pinion 26 of the timer mobile 28.
  • This mobile 28 also includes a wheel 30 which meshes with a pinion 32 mounted on the axis 34 carrying the minute hand 36.
  • On this axis 34 is also mounted a wheel 38 engaged with the rotor of the timepiece motor 40.
  • the barrel 22 is mounted to rotate freely on the axis 34 in a conventional manner.
  • the disc 10 has a toothed ring 44 on its underside.
  • the movable 28 also forms an intermediate movable between the wheel 24 associated with the hour hand 12 and the disc 10.
  • the movable 28 is extended by a shaft 46 having at its end a pinion 48 which meshes with the toothing 44.
  • the gears are defined so as to have a reduction coefficient of two between the wheel 24 and the disc 10. In other words, the gear ratio between the ring gear 44 and the pinion 48 is twice greater than the gear ratio between the wheel 24 and the pinion 26.
  • the disc 10 makes one turn when the needle 12 makes two, which makes it possible to obtain the correct display of the desired information.
  • the disc 10 is located in a recess in the plate 56 and that its upper face 14 is visible through an opening arranged in the dial 52.
  • the plate 56 is provided with an opening adjusted to the dimensions of the shaft 46 of the mobile 28.
  • the hub of the wheel 30 and the pinion 48 axially position the mobile 28 in the plate 56.
  • FIG. 2 is distinguished by a simplicity of execution and an economy of mobiles.
  • the arrangement of the drive means is relatively simple and allows a compact embodiment. It will be noted that the production of the timepiece according to the invention generates only little additional cost relative to a basic caliber.

Abstract

The part has an analogue hour display (6) moving in a direction such that hour hand (12) makes a full turn in twelve hours. A disk (10) has a visible face (14) and defines geometrical axis of rotation joined with axis (34) of the hand. The disk is moved by drives (28, 44, 48) to make a full turn in the direction of hour hand. The face defines two half disks (15, 16) to show day-night information relative to hour displayed.

Description

La présente invention concerne une pièce d'horlogerie comprenant un affichage analogique de l'heure agencé de manière que l'aiguille des heures effectue un tour en douze heures. En particulier, la présente invention concerne l'affichage de l'heure d'un deuxième fuseau horaire différent du fuseau horaire dans lequel se trouve l'utilisateur de la pièce d'horlogerie.The present invention relates to a timepiece comprising an analog time display arranged so that the hour hand makes one revolution in twelve hours. In particular, the present invention relates to the display of the time of a second time zone different from the time zone in which the user of the timepiece is located.

L'affichage d'un deuxième fuseau horaire à l'aide d'une aiguille effectuant un tour en douze heure pose le problème connu de la détermination AM-PM ou jour-nuit relative à l'heure affichée.The display of a second time zone using a hand performing a revolution in twelve hours poses the known problem of AM / PM or day-night determination relating to the time displayed.

Une solution à ce problème consiste à prévoir l'affichage de l'heure de ce deuxième fuseau horaire par une aiguille des heures effectuant un tour en vingt-quatre heures. Toutefois, dans le cadre de la présente invention, on souhaite afficher l'heure locale dans le deuxième fuseau horaire de manière classique, c'est-à-dire à l'aide d'une aiguille effectuant un tour en douze heures.One solution to this problem consists in providing for the display of the time of this second time zone by an hour hand performing one revolution in twenty-four hours. However, in the context of the present invention, it is desired to display the local time in the second time zone in a conventional manner, that is to say using a hand performing one revolution in twelve hours.

Ainsi, un but de la présente invention est de fournir l'indication de l'heure locale dans un deuxième fuseau horaire à l'aide d'une aiguille des heures effectuant un tour en douze heures et associée à des moyens d'indication de l'information AM-PM ou jour-nuit présentant une très bonne lisibilité pour l'utilisateur.Thus, an object of the present invention is to provide the indication of the local time in a second time zone using an hour hand performing one revolution in twelve hours and associated with means for indicating the AM / PM or day-night information with very good readability for the user.

Un autre but de l'invention est de fournir un tel affichage à l'aide d'un mécanisme relativement simple et peu onéreux.Another object of the invention is to provide such a display using a relatively simple and inexpensive mechanism.

A cet effet, la pièce d'horlogerie selon l'invention comprend un disque ayant une surface visible et définissant un axe géométrique de rotation qui est confondu avec l'axe de l'aiguille des heures, ce disque étant entraîné par des moyens d'entraînement de manière à effectuer un tour en vingt-quatre heures dans le même sens que ladite aiguille des heures. La surface visible dudit disque définit visuellement deux demi-disques positionnés relativement à ladite aiguille des heures pour indiquer l'information AM-PM ou jour-nuit relative à l'heure affichée par cette aiguille des heures.To this end, the timepiece according to the invention comprises a disc having a visible surface and defining a geometric axis of rotation which coincides with the axis of the hour hand, this disc being driven by means of training so as to complete one revolution in twenty-four hours in the same direction as the said hour hand. The visible surface of said disc visually defines two half-discs positioned relative to said hour hand to indicate the AM-PM or day-night information relating to the time displayed by this hour hand.

Grâce aux caractéristiques de l'invention, une lecture directe et conviviale de l'information AM-PM ou jour-nuit est obtenue. En effet, cette information est associée directement à l'aiguille des heures et fournie par la position relative entre cette aiguille et le disque coaxial.Thanks to the characteristics of the invention, a direct and user-friendly reading of the AM-PM or day-night information is obtained. Indeed, this information is directly associated with the hour hand and provided by the relative position between this hand and the coaxial disc.

La présente invention sera décrite plus précisément ci-après à l'aide de la description suivante, faite en référence aux dessins annexés, donnés à titre d'exemples nullement limitatifs, dans lesquels :

  • la figure 1 présente une pièce d'horlogerie selon l'invention avec l'indication de l'heure locale d'un deuxième fuseau horaire à quatre moments différents (figure 1a, 1b, 1c et 1d) d'une journée, et
  • la figure 2 représente schématiquement en coupe un mode de réalisation de la pièce d'horlogerie selon l'invention.
The present invention will be described more precisely below with the aid of the following description, given with reference to the accompanying drawings, given by way of non-limiting examples, in which:
  • FIG. 1 shows a timepiece according to the invention with the indication of the local time of a second time zone at four different times (FIG. 1a, 1b, 1c and 1d) of a day, and
  • FIG. 2 schematically represents in section an embodiment of the timepiece according to the invention.

La figure 1 représente une pièce selon l'invention à quatre moments différents d'une journée respectivement sur les figures 1a) à 1d). La pièce d'horlogerie présente un affichage analogique de deux fuseaux horaires différents. L'heure du premier fuseau est affichée par un jeu d'aiguilles centrales 4. L'heure du deuxième fuseau horaire est affichée par un jeu d'aiguilles 6 décentré relativement à l'axe central du cadran 8. La présente invention concerne le deuxième affichage 6 servant en général à l'affichage de l'heure dans un deuxième fuseau horaire différent de celui où se trouve l'utilisateur de la pièce d'horlogerie.Figure 1 shows a part according to the invention at four different times of a day respectively in Figures 1a) to 1d). The timepiece presents an analog display of two different time zones. The time of the first time zone is displayed by a set of central hands 4. The time of the second time zone is displayed by a set of hands 6 offset relative to the central axis of the dial 8. The present invention relates to the second display 6 generally used for displaying the time in a second time zone different from that in which the user of the timepiece is located.

Le deuxième jeu d'aiguilles 6 est entraîné de manière à ce que l'aiguille des heures effectue un tour en douze heures, de manière similaire au premier jeu d'aiguilles. Sous le deuxième jeu d'aiguilles est prévu un disque 10 dont l'axe géométrique de rotation est confondu avec l'axe de l'aiguille des heures 12 du deuxième jeu. Ce disque 10 est entraîné par des moyens d'entraînement, notamment tels que représentés à la figure 2, de manière à effectuer un tour en vingt-quatre heures dans le même sens que l'aiguille 12. De plus, la surface visible 14 définit visuellement deux demi-disques 15 et 16 servant à indiquer si l'heure affichée est dans la période anté-méridien (AM) ou dans la période post-méridien (PM), dans une variante non représentée ici, ou si cette heure affichée correspond à la période diurne (jour) ou à la période nocturne (nuit), comme c'est le cas dans la variante représentée à la figure 1. Le disque 10 est positionné relativement à l'aiguille des heures 12 de manière à ce que la position de cette aiguille relativement au disque indique directement dans quelle période se situe l'heure affichée. Plus précisément, l'information est donnée par la superposition de l'aiguille des heures 12 avec l'un des deux demi-disques 15 et 16. On notera ici que d'autres représentations graphiques permettant de délimiter visuellement deux demi-disques sont envisageables.The second set of hands 6 is driven so that the hour hand makes one revolution in twelve hours, similar to the first set of hands. Under the second set of hands is provided a disc 10 whose geometric axis of rotation coincides with the axis of the hour hand 12 of the second set. This disc 10 is driven by drive means, in particular such as shown in Figure 2, so as to make a revolution in twenty-four hours in the same direction as the needle 12. In addition, the visible surface 14 visually defines two half-discs 15 and 16 used to indicate whether the displayed time is in the anteromidial period (AM) or in the post-meridian period (PM), in a variant not shown here, or if this displayed time corresponds to the diurnal period (day) or the nocturnal period (night ), as is the case in the variant shown in Figure 1. The disc 10 is positioned relative to the hour hand 12 so that the position of this hand relative to the disc indicates directly in which period is the time displayed. More precisely, the information is given by the superposition of the hour hand 12 with one of the two half-discs 15 and 16. It will be noted here that other graphic representations making it possible to visually delimit two half-discs are possible. .

Ainsi, à la figure 1a), l'heure indiquée correspond au lever du soleil, c'est-à-dire à six heures du matin dans le deuxième fuseau horaire en question. La figure 1b) correspond à midi environ alors que la figure 1c) correspond sensiblement au coucher du soleil, c'est-à-dire à environ six heures du soir. Finalement, la figure 1d) correspond à minuit dans ce deuxième fuseau horaire. Comme cela ressort de la description ci-dessus, la lecture de la période correspondante à l'heure affichée par le deuxième jeu d'aiguilles 6 est directe et aisée pour un utilisateur.Thus, in Figure 1a), the time indicated corresponds to sunrise, that is to say at six in the morning in the second time zone in question. Figure 1b) corresponds to approximately noon whereas Figure 1c) corresponds approximately to sunset, that is to say approximately six in the evening. Finally, Figure 1d) corresponds to midnight in this second time zone. As appears from the description above, the reading of the period corresponding to the time displayed by the second set of hands 6 is direct and easy for a user.

A la figure 2 est représenté en coupe schématiquement un mode particulier de réalisation des moyens d'entraînement du disque 10 selon l'invention. Ce disque est percé en son centre et monté libre autour du canon 22 de l'aiguille des heures 12. Le canon 22 est terminé par une roue 24 qui engrène avec le pignon 26 du mobile de minuterie 28. Ce mobile 28 comprend également une roue 30 qui engrène avec un pignon 32 monté sur l'axe 34 portant l'aiguille des minutes 36. Sur cet axe 34 est monté également une roue 38 en prise avec le rotor du moteur horloger 40.In Figure 2 is shown schematically in section a particular embodiment of the drive means of the disc 10 according to the invention. This disc is pierced in its center and mounted freely around the barrel 22 of the hour hand 12. The barrel 22 is terminated by a wheel 24 which meshes with the pinion 26 of the timer mobile 28. This mobile 28 also includes a wheel 30 which meshes with a pinion 32 mounted on the axis 34 carrying the minute hand 36. On this axis 34 is also mounted a wheel 38 engaged with the rotor of the timepiece motor 40.

Le canon 22 est monté libre en rotation sur l'axe 34 de manière classique.The barrel 22 is mounted to rotate freely on the axis 34 in a conventional manner.

Le disque 10 présente à sa face inférieure une couronne dentée 44. Le mobile 28 forme également un mobile intermédiaire entre la roue 24 associée à l'aiguille des heures 12 et le disque 10. A cet effet, le mobile 28 est prolongé par un arbre 46 présentant à son extrémité un pignon 48 qui engrène avec la denture 44. Les engrenages sont définis de manière à avoir un coefficient de réduction de deux entre la roue 24 et le disque 10. En d'autres termes, le rapport d'engrenage entre la couronne dentée 44 et le pignon 48 est deux fois supérieur au rapport d'engrenage entre la roue 24 et le pignon 26. Ainsi, le disque 10 effectue un tour lorsque l'aiguille 12 en effectue deux, ce qui permet d'obtenir l'affichage correcte de l'information souhaitée.The disc 10 has a toothed ring 44 on its underside. The movable 28 also forms an intermediate movable between the wheel 24 associated with the hour hand 12 and the disc 10. For this purpose, the movable 28 is extended by a shaft 46 having at its end a pinion 48 which meshes with the toothing 44. The gears are defined so as to have a reduction coefficient of two between the wheel 24 and the disc 10. In other words, the gear ratio between the ring gear 44 and the pinion 48 is twice greater than the gear ratio between the wheel 24 and the pinion 26. Thus, the disc 10 makes one turn when the needle 12 makes two, which makes it possible to obtain the correct display of the desired information.

On notera que le disque 10 est situé dans un évidement de la platine 56 et que sa face supérieure 14 est visible à travers une ouverture agencée dans le cadran 52. La platine 56 est prévue avec une ouverture ajustée aux dimensions de l'arbre 46 du mobile 28. Le moyeu de la roue 30 et le pignon 48 positionnent axialement le mobile 28 dans la platine 56.Note that the disc 10 is located in a recess in the plate 56 and that its upper face 14 is visible through an opening arranged in the dial 52. The plate 56 is provided with an opening adjusted to the dimensions of the shaft 46 of the mobile 28. The hub of the wheel 30 and the pinion 48 axially position the mobile 28 in the plate 56.

D'autres agencements reprenant les caractéristiques essentielles de la présente invention sont naturellement envisageables pour l'homme du métier. Le mode de réalisation décrit à la figure 2 se distingue par une simplicité d'exécution et une économie de mobiles. L'agencement des moyens d'entraînement est relativement simple et permet une réalisation compacte. On remarquera que la réalisation de la pièce d'horlogerie selon l'invention n'engendre que peu de coût supplémentaire relativement à un calibre de base.Other arrangements incorporating the essential characteristics of the present invention are naturally conceivable for those skilled in the art. The embodiment described in FIG. 2 is distinguished by a simplicity of execution and an economy of mobiles. The arrangement of the drive means is relatively simple and allows a compact embodiment. It will be noted that the production of the timepiece according to the invention generates only little additional cost relative to a basic caliber.

Claims (4)

Pièce d'horlogerie comprenant un affichage analogique de l'heure (6) agencé de manière que l'aiguille des heures (12) effectue un tour en douze heures, caractérisée en ce qu'elle comprend en outre un disque (10) ayant une surface visible (14) et définissant un axe géométrique de rotation confondu avec l'axe (34) de ladite aiguille des heures, ce disque étant entraîné par des moyens d'entraînement (28, 48, 44) de la pièce d'horlogerie de manière à effectuer un tour en vingt-quatre heures dans le même sens que ladite aiguille des heures, ladite surface visible de ce disque définissant visuellement deux demi-disques (15, 16) positionnés relativement à ladite aiguille des heures pour indiquer l'information AM-PM ou l'information jour-nuit relative à l'heure affichée par cette aiguille des heures.Timepiece comprising an analog time display (6) arranged so that the hour hand (12) makes one revolution in twelve hours, characterized in that it further comprises a disc (10) having a visible surface (14) and defining a geometric axis of rotation coincident with the axis (34) of said hour hand, this disc being driven by drive means (28, 48, 44) of the timepiece so as to make a revolution in twenty-four hours in the same direction as said hour hand, said visible surface of this disc visually defining two half-discs (15, 16) positioned relative to said hour hand to indicate the AM information -PM or the day-night information relating to the time displayed by this hour hand. Pièce d'horlogerie selon la revendication 1, caractérisée en ce que les moyens d'entraînement comprennent un mobile (28) agencé pour, en plus de l'entraînement du disque (10), entraîner l'aiguille des heures (12) par l'intermédiaire d'un engrenage (24, 26).Timepiece according to claim 1, characterized in that the drive means comprise a mobile (28) arranged to, in addition to the drive of the disc (10), drive the hour hand (12) by l 'through a gear (24, 26). Pièce d'horlogerie selon la revendication 2, caractérisée en ce que ledit mobile (28) comprend en outre une roue de minuterie (30) en prise avec un pignon (32) agencé sur l'axe (34) d'une aiguille des minutes qui est coaxiale à ladite aiguille des heures.Timepiece according to claim 2, characterized in that said mobile (28) further comprises a timer wheel (30) engaged with a pinion (32) arranged on the axis (34) of a minute hand which is coaxial with said hour hand. Pièce d'horlogerie selon l'une des revendications précédentes, caractérisée en ce que ledit affichage analogique de l'heure est prévu pour indiquer l'heure locale dans un deuxième fuseau horaire différent du premier fuseau horaire de l'utilisateur de la pièce d'horlogerie dont l'heure est affichée par un affichage analogique principal (4).Timepiece according to one of the preceding claims, characterized in that said analog time display is designed to indicate the local time in a second time zone different from the first time zone of the user of the timepiece. timepieces whose time is displayed by a main analog display (4).
EP02079402A 2002-10-22 2002-10-22 Timepiece with analog display means associated to AM-PM indication means Withdrawn EP1413934A1 (en)

Priority Applications (1)

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EP02079402A EP1413934A1 (en) 2002-10-22 2002-10-22 Timepiece with analog display means associated to AM-PM indication means

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EP02079402A EP1413934A1 (en) 2002-10-22 2002-10-22 Timepiece with analog display means associated to AM-PM indication means

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1577716A2 (en) * 2004-03-16 2005-09-21 Lange Uhren GmbH Timepiece
EP1734418A1 (en) * 2005-06-15 2006-12-20 Manufacture Roger Dubuis S.A. Timepiece

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0492027A1 (en) * 1990-12-21 1992-07-01 Archimedia Creation Time display device
CH684916GA3 (en) * 1993-02-24 1995-02-15 Bruno Hotz Timepiece with a world time display
DE29818586U1 (en) * 1998-10-19 1999-04-01 Becker Thomas Clock

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0492027A1 (en) * 1990-12-21 1992-07-01 Archimedia Creation Time display device
CH684916GA3 (en) * 1993-02-24 1995-02-15 Bruno Hotz Timepiece with a world time display
DE29818586U1 (en) * 1998-10-19 1999-04-01 Becker Thomas Clock

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1577716A2 (en) * 2004-03-16 2005-09-21 Lange Uhren GmbH Timepiece
EP1577716A3 (en) * 2004-03-16 2007-10-03 Lange Uhren GmbH Timepiece
EP1734418A1 (en) * 2005-06-15 2006-12-20 Manufacture Roger Dubuis S.A. Timepiece
WO2006133587A1 (en) * 2005-06-15 2006-12-21 Manufacture Roger Dubuis S.A. Timepiece
US7483340B2 (en) 2005-06-15 2009-01-27 Manufacture Roger Dubuis S.A. Timepiece

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