EP0668551A1 - Watch with two opposite displays - Google Patents

Watch with two opposite displays Download PDF

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Publication number
EP0668551A1
EP0668551A1 EP95810082A EP95810082A EP0668551A1 EP 0668551 A1 EP0668551 A1 EP 0668551A1 EP 95810082 A EP95810082 A EP 95810082A EP 95810082 A EP95810082 A EP 95810082A EP 0668551 A1 EP0668551 A1 EP 0668551A1
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EP
European Patent Office
Prior art keywords
rod
corrector
watch
additional
correction mechanism
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EP95810082A
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German (de)
French (fr)
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EP0668551B1 (en
Inventor
Vincent Calabrese
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Montres Universal SA
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Montres Universal SA
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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
    • G04B27/00—Mechanical devices for setting the time indicating means
    • G04B27/02—Mechanical devices for setting the time indicating means by making use of the winding means
    • G04B27/026—Mechanical devices for setting the time indicating means by making use of the winding means for several clockworks or pairs of hands and/or supplementary functions

Definitions

  • the present invention relates to a mechanism for adding an additional dial on the back side of the watch in order to obtain a double-sided watch.
  • a winding crown can be provided in several positions, but in the case of existing movements, the original crown continues to perfectly fulfill the winding function while for setting 'time it can act only on the scheduled side, thus forcing to add an additional means for setting the time on the added side.
  • Swiss Patent No. 7,594 using a large off-center average, describes an equally simple and safe means of obtaining a good result and has provided a means of shifting the two displays by means of two strollers.
  • the second, axial, is the old stroller, it requires few parts but has the disadvantage of having to use an adequate tool for the correction, in addition the contact of the corrective part with the cog is brutal and can cause damage .
  • the third, axial, is the pusher; few parts, easy to correct, but disadvantage due to the great risk of involuntary relapses, as well as brutal contact.
  • the fourth, axial, is the lock, few parts but difficulty of use and sealing and brutal contact.
  • the aim of the present invention is to produce double-sided watches on existing movements and this with the greatest ease of use for the consumer, and taking into account the two aforementioned patents which already allow it, proposes a mechanism capable of its simplicity and therefore its reliability of making these watches without increasing their thicknesses in an exaggerated way and with an easy, safe and lasting correction.
  • Figure 1 shows a section of the fixing system and the transmission of movement from one side to the other.
  • FIG. 2 represents a view, side B, of the additional parts used for the display, as well as of the corrector which is the subject of the present invention.
  • the additional display on the back side, B is off-center to allow its indicators to turn clockwise without having to use an additional bevel and also to avoid using the timer wheel by using a jumping display of the hours.
  • a pin C resiliently adjusted to the large GM average, is on the B side, secured to a toothed wheel R1, of the same diameter as the minute wheel R2 as well as a finger D which blows up every hour.
  • the A side timer mobiles being conventional, are not shown in the drawing.
  • This rod T has cylindrical parts of different diameters Ta, Tb, connected by a conical part Tc.
  • a corrector K pivoted in 1, axially in the casing ring M, or in an upper plate N, comprises a dowel P which bears against the rod T, and it is provided with an elastic arm Kr in abutment against a stud F and having the function of a spring.
  • the position shown in fig. 2 corresponds to that of normal operation, when the crown, which controls the rod T, is held against the case.
  • double-sided watches can easily be handled by means of the traditional crown for winding and setting the time simultaneously on both sides, while when we want to handle only side A, we will pull on the additional crown of the rod T and the manipulation of the display B will be blocked.
  • Another advantage of this system lies in the fact that requiring little space, it allows the addition of additional mechanisms as in the example shown in fig. 3.
  • the wheel R3 has the same diameter and therefore rotates at the same speed of one revolution per hour.
  • R3 drives an R5 wheel which rotates in 24 hours via a wheel R4.
  • R5 rotating clockwise carries a 24 hour or day / night display index, and thanks to the wheel R6, carrying a finger D2, communicates the rotation clockwise to the star of 31 teeth Q, which indicates the date.
  • a second corrector K2 identical to the corrector K1, completely independent of the other functions, and used only for rapid setting of the date.
  • the advantage of the function of this corrector is in this precise case widely demonstrated. Indeed, if it is handled at midnight when the date is changing, the strength of its spring will not allow it to do any damage while it will be more than enough to overcome the resistance of the star's spring, Qr, when correction is possible and thus advance the Q star by one tooth for each draw.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Braking Arrangements (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Testing Of Balance (AREA)
  • Coating Apparatus (AREA)

Abstract

Toothed wheels (R1) (R2) of equal diameters engage to link the minute drives on both sides of the watch and a lever (D) and star wheel (E) produce the hours. A corrector plate (K) is pivoted (1) with a part (Kr) sprung against a stop (F). A cylindrical rod (T) has two diameters (Ta) (Tb) and bears against a pin (P) on the corrector plate (K). When the larger of the two diameters (Ta) is in contact with the pin (P) the claw of the corrector plate is disengaged from the minute wheel (R2) but translation of the rod (T) to the smaller diameter (Tb) causes engagement.

Description

La présente invention a pour objet un mécanisme permettant d'ajouter un cadran supplémentaire sur le côté verso de la montre afin d'obtenir une montre double faces.The present invention relates to a mechanism for adding an additional dial on the back side of the watch in order to obtain a double-sided watch.

On connaît depuis longtemps de nombreuses réalisations de montres dites à double faces mais la véritable difficulté à l'usage réside dans le remontage et la remise à l'heure des deux faces.Many realizations of so-called double-sided watches have been known for a long time, but the real difficulty in use lies in the winding and time-setting of the two faces.

Sur un mouvement construit exprès pour une montre double face, on peut prévoir une couronne de remontoir à plusieurs positions, mais dans le cas de mouvements existants, la couronne d'origine continue de remplir parfaitement la fonction de remontage tandis que pour la mise à l'heure elle ne peut agir que sur le côté prévu, obligeant ainsi à ajouter un moyen supplémentaire pour la mise à l'heure du côté ajouté.On a movement built expressly for a double-sided watch, a winding crown can be provided in several positions, but in the case of existing movements, the original crown continues to perfectly fulfill the winding function while for setting 'time it can act only on the scheduled side, thus forcing to add an additional means for setting the time on the added side.

En se référant au brevet suisse No 57805 qui décrit, en se servant d'un mouvement avec grande moyenne centrale, un moyen très simple et fiable pour obtenir une montre double face, on constate qu'il n'a pas prévu de décaler les deux affichages.Referring to Swiss Patent No 57805 which describes, using a movement with large central average, a very simple and reliable means to obtain a double-sided watch, it can be seen that he did not plan to offset the two displays.

Le brevet suisse No 7 594 en se servant d'une grande moyenne décentrée, décrit un moyen tout aussi simple et sûr pour obtenir un bon résultat et il a prévu un moyen de décaler les deux affichages par le moyen de deux poussettes.Swiss Patent No. 7,594, using a large off-center average, describes an equally simple and safe means of obtaining a good result and has provided a means of shifting the two displays by means of two strollers.

Pour les montres mécaniques, on connaît divers correcteurs pouvant remplir ce rôle. Le premier, rotatoire, est la couronne classique, elle permet une correction rapide mais nécessite beaucoup de composants et donc beaucoup d'espace.For mechanical watches, various correctors are known which can fulfill this role. The first, rotary, is the classic crown, it allows a fast correction but requires a lot of components and therefore a lot of space.

Le deuxième, axial, c'est l'ancienne poussette, elle nécessite peu de pièces mais présente le désavantage de devoir employer un outil adéquat pour la correction, en outre le contact de la partie correctrice avec le rouage est brutal et peut provoquer des dégâts.The second, axial, is the old stroller, it requires few parts but has the disadvantage of having to use an adequate tool for the correction, in addition the contact of the corrective part with the cog is brutal and can cause damage .

Le troisième, axial, c'est le poussoir; peu de pièces, facilité de correction, mais désavantage en raison du grand risque de poussées involontaires, ainsi que d'un contact brutal.The third, axial, is the pusher; few parts, easy to correct, but disadvantage due to the great risk of involuntary relapses, as well as brutal contact.

Le quatrième, axial, c'est le verrou, peu de pièces mais difficulté d'usage et d'étanchéité et contact brutal.The fourth, axial, is the lock, few parts but difficulty of use and sealing and brutal contact.

La présente invention ayant pour but de réaliser des montres doubles faces sur des mouvements existants et cela avec la plus grande facilité d'usage pour le consommateur, et en tenant compte des deux brevets sus-cités qui déjà le permettent, propose un mécanisme capable par sa simplicité et donc sa fiabilité de réaliser ces montres sans en augmenter leurs épaisseurs d'une façon exagérée et avec une correction aisée, sûre et durable.The aim of the present invention is to produce double-sided watches on existing movements and this with the greatest ease of use for the consumer, and taking into account the two aforementioned patents which already allow it, proposes a mechanism capable of its simplicity and therefore its reliability of making these watches without increasing their thicknesses in an exaggerated way and with an easy, safe and lasting correction.

Ce résultat est atteint par le mécanisme de la présente invention grâce à un nouveau type de correcteur qui agissant d'une façon négative sous l'impulsion d'une force élastique, réunit les avantages des différents moyens précités sans en assumer leurs inconvénients.This result is achieved by the mechanism of the present invention thanks to a new type of corrector which acts in a negative way under the impulse of an elastic force, combines the advantages of the various aforementioned means without assuming their disadvantages.

A titre d'exemple son application a été développée sur un mouvement avec grande moyenne centrale, selon le brevet No 57 805, mais son fonctionnement peut tout aussi bien être assuré sur un mouvement avec grande moyenne décentrée ou additionnelle.As an example, its application was developed on a movement with a large central average, according to the Patent No 57,805, but its operation can just as easily be ensured on a movement with a large off-center or additional average.

Afin d'éviter des usinages sur le mouvement de base, le mouvement est simplement bloqué dans une bague d'encageage M, par des moyens adéquats et solides afin qu'ils forment un tout et on loge tous les composants additionnels sur une plaque supplémentaire N, que l'on fixe sur la bague d'encageage.In order to avoid machining on the basic movement, the movement is simply blocked in a casing ring M, by adequate and solid means so that they form a whole and all the additional components are housed on an additional plate N , which is fixed on the casing ring.

Les dessins annexés représentent, à titre d'exemple, une forme d'exécution de l'invention.The accompanying drawings show, by way of example, an embodiment of the invention.

La figure 1 représente une coupe du système de fixage ainsi que la transmission du mouvement d'une face à l'autre.Figure 1 shows a section of the fixing system and the transmission of movement from one side to the other.

La figure 2 représente une vue, côté B, des pièces additionnelles servant à l'affichage, ainsi que du correcteur faisant l'objet de la présente invention.FIG. 2 represents a view, side B, of the additional parts used for the display, as well as of the corrector which is the subject of the present invention.

Dans le cas présent, l'affichage additionel côté verso, B, est décentré pour permettre à ses indicateurs de tourner le sens horaire sans devoir employer un renvoi supplémentaire et afin d'éviter aussi l'emploi de la roue de minuterie en faisant recours à un affichage des heures d'une façon sautante.In this case, the additional display on the back side, B, is off-center to allow its indicators to turn clockwise without having to use an additional bevel and also to avoid using the timer wheel by using a jumping display of the hours.

A cet effet, un chevillot C, ajusté élastiquement dans la grande moyenne GM, est côté B, solidaire d'une roue dentée R1, de même diamètre que la roue des minutes R2 ainsi que d'un doigt D qui fait sauter à chaque heure une étoile E indicatrice des heures sautantes, tandis que côté A, il possède une partie conique destinée au lanternage de la chaussée traditionnelle, non représentée sur le dessin.To this end, a pin C, resiliently adjusted to the large GM average, is on the B side, secured to a toothed wheel R1, of the same diameter as the minute wheel R2 as well as a finger D which blows up every hour. an E star indicative of jumping hours, while on side A, it has a conical part intended for the lanterning of the traditional roadway, not shown in the drawing.

Les mobiles de minuterie du côté A, étant classiques, ne sont pas représentés sur le dessin.The A side timer mobiles, being conventional, are not shown in the drawing.

Une tige T pivotée radialement dans une bague d'encageage M, se déplace horizontalement et peut occuper deux ou plusieurs positions qui sont commandables par une couronne solidaire, non représentée sur le dessin, logée à l'extérieur à la boîte. Les moyens de positionnement de cette tige ne sont pas représentés.A rod T pivoted radially in a casing ring M, moves horizontally and can occupy two or more positions which are controllable by an integral crown, not shown in the drawing, housed outside the box. The means for positioning this rod are not shown.

Cette tige T possède des parties cylindriques de différents diamètres Ta, Tb, reliées par une partie conique Tc. Un correcteur K pivoté en 1, axialement dans la bague d'encageage M, ou dans une plaque supérieure N, comporte une cheville P qui s'appuie contre la tige T, et il est muni d'un bras élastique Kr en appui contre un plot F et ayant la fonction d'un ressort.This rod T has cylindrical parts of different diameters Ta, Tb, connected by a conical part Tc. A corrector K pivoted in 1, axially in the casing ring M, or in an upper plate N, comprises a dowel P which bears against the rod T, and it is provided with an elastic arm Kr in abutment against a stud F and having the function of a spring.

La position représentée à la fig. 2 correspond à celle de la marche normale, lorsque la couronne, qui commande la tige T, est maintenue contre la boîte.The position shown in fig. 2 corresponds to that of normal operation, when the crown, which controls the rod T, is held against the case.

Dans cette position, la cheville P, malgré la poussée du ressort Kr, reste appuyée sur le grand diamètre de la tige T et maintient le correcteur K en position de non contact avec une roue dentée R2. la transmission entre les deux affichages A et B peut advenir en parfaite synchronisation par le biais du chevillot C, rien n'empêchant cette transmission.In this position, the pin P, despite the thrust of the spring Kr, remains supported on the large diameter of the rod T and maintains the corrector K in the non-contact position with a toothed wheel R2. the transmission between the two displays A and B can occur in perfect synchronization via the pin C, nothing preventing this transmission.

Lorsqu'en tirant la couronne solidaire de la tige T, on lui fait prendre la position représentée en traitillé, la cheville P, sous la poussée du ressort Kr, glisse sur la partie conique Tc et vient s'appuyer sur la partie cylindrique de plus petit diamètre Tb, en libérant ainsi le correcteur K qui sous l'influence du ressort Kr, viendra loger sa pointe dans la denture de la roue R2. Ce blocage est absolument indépendant de l'intensité de la manoeuvre extérieure et sa force de pénétration est uniquement liée à la force du ressort Kr ainsi qu'à la forme de sa pointe; ce contact, tout en étant doux reste sûr et efficace et il empêche une manipulation violente ou involontaire.When pulling the crown integral with the rod T, it is made to take the position shown in dotted lines, the pin P, under the thrust of the spring Kr, slides on the conical part Tc and comes to rest on the cylindrical part of smaller diameter Tb, thereby releasing the corrector K which under the influence of the spring Kr, will accommodate its point in the toothing of the wheel R2. This blocking is absolutely independent of the intensity of the external maneuver and its penetration force is only linked to the force of the spring Kr as well as to the shape of its point; this contact, while being gentle, remains safe and effective and prevents violent or involuntary manipulation.

Par ce système, les montres doubles faces peuvent facilement être manipulées par le moyen de la couronne traditionnelle pour le remontage et la mise à l'heure simultanée des deux faces, tandis que lorsqu'on voudra manipuler que la face A, on tirera sur la couronne additionnelle de la tige T et l'on bloquera la manipulation de l'affichage B.By this system, double-sided watches can easily be handled by means of the traditional crown for winding and setting the time simultaneously on both sides, while when we want to handle only side A, we will pull on the additional crown of the rod T and the manipulation of the display B will be blocked.

La simplicité de ce mécanisme, qui assume l'avantage de la sécurité du verrou et la maniabilité de la couronne, tout en éliminant le contact brutal ou involontaire du poussoir est composé de seulement deux pièces supplémentaires T et K aux fonctions simples et donc sûres.The simplicity of this mechanism, which assumes the advantage of the safety of the lock and the maneuverability of the crown, while eliminating sudden or involuntary contact of the pusher is composed of only two additional parts T and K with simple and therefore safe functions.

Un autre avantage de ce système réside dans le fait que demandant peu de place, il permet l'adjonction de mécanismes supplémentaires comme dans l'exemple montré à la fig. 3.Another advantage of this system lies in the fact that requiring little space, it allows the addition of additional mechanisms as in the example shown in fig. 3.

Evoluant sur le même plan que les roues R1 et R2, la roue R3 a le même diamètre et tourne donc à la même vitesse d'un tour par heure. R3 entraîne une roue R5 qui fait un tour en 24 heures par l'intermédiaire d'une roue R4.Moving on the same plane as the wheels R1 and R2, the wheel R3 has the same diameter and therefore rotates at the same speed of one revolution per hour. R3 drives an R5 wheel which rotates in 24 hours via a wheel R4.

R5 tournant en sens horaire, porte un index d'affichage de 24 heures, ou jour/nuit, et grâce à la roue R6, porteuse d'un doigt D2, communique la rotation en sens horaire à l'étoile de 31 dents Q, qui indique la date. Il est évidemment possible d'ajouter un deuxième correcteur K2, identique au correcteur K1, complètement indépendant des autres fonctions, et servant uniquement à la mise rapide de la date. L'avantage de la fonction de ce correcteur est dans ce cas précis largement démontré. En effet, si on le manipule à minuit lorsque la date est en train de changer, la force de son ressort ne lui permettra de faire aucun dégât tandis qu'elle sera largement suffisante pour vaincre la résistance du ressort de l'étoile, Qr, lorsque la correction est possible et faire ainsi avancer l'étoile Q d'une dent à chaque tirage.R5 rotating clockwise, carries a 24 hour or day / night display index, and thanks to the wheel R6, carrying a finger D2, communicates the rotation clockwise to the star of 31 teeth Q, which indicates the date. It is obviously possible to add a second corrector K2, identical to the corrector K1, completely independent of the other functions, and used only for rapid setting of the date. The advantage of the function of this corrector is in this precise case widely demonstrated. Indeed, if it is handled at midnight when the date is changing, the strength of its spring will not allow it to do any damage while it will be more than enough to overcome the resistance of the star's spring, Qr, when correction is possible and thus advance the Q star by one tooth for each draw.

Claims (7)

Mécanisme de correction pour mouvements d'horlogerie caractérisé en ce qu'un correcteur (K; K2) agissant de façon négative sous l'impulsion d'une force élastique (Kr) est positionné par une tige (T; T2) possédant des parties cylindriques de diamètres différents (Ta, Tb).Correction mechanism for clock movements characterized in that a corrector (K; K2) acting negatively under the impulse of an elastic force (Kr) is positioned by a rod (T; T2) having cylindrical parts of different diameters (Ta, Tb). Mécanisme de correction selon la revendication 1, assurant l'entraînement ou la retenue d'une roue dentée (R2; Q), caractérisé en ce que le correcteur (K; K2) est constitué d'un bras monté rotativement (1), muni d'une cheville (P) et d'un bras élastique (Kr) en appui contre un plot (F) de manière à maintenir ladite cheville en appui contre la tige (T; T2) dont les deux parties cylindriques de diamètres différents (Ta, Tb) sont reliés par une partie conique (Tc), la cheville (P) étant, dans une première position de la tige (T) en appui contre le plus grand diamètre (Ta) de la tige de telle manière que le correcteur est écarté de la roue (R2; Q) à bloquer, respectivement à entraîner, et, dans une seconde position de la tige, en appui contre le plus petit diamètre (Tb) de la tige de telle sorte que le correcteur (K; K2) vient bloquer, respectivement entraîner la roue dentée (R2; Q).Correction mechanism according to claim 1, ensuring the drive or the retention of a toothed wheel (R2; Q), characterized in that the corrector (K; K2) consists of an arm rotatably mounted (1), provided a dowel (P) and an elastic arm (Kr) bearing against a stud (F) so as to keep said dowel bearing against the rod (T; T2), the two cylindrical parts of different diameters (Ta , Tb) are connected by a conical part (Tc), the pin (P) being, in a first position of the rod (T) bearing against the largest diameter (Ta) of the rod so that the corrector is separated from the wheel (R2; Q) to be locked, respectively to be driven, and, in a second position of the rod, pressing against the smallest diameter (Tb) of the rod so that the corrector (K; K2) comes to block, respectively drive the toothed wheel (R2; Q). Montre dite à double face équipée d'un mécanisme de correction selon la revendication 1, caractérisée en ce que ledit mécanisme de correction permet le blocage de l'affichage additionnle côté verso (B).Watch said to be double-sided equipped with a correction mechanism according to claim 1, characterized in that said correction mechanism allows the blocking of the additional display on the back side (B). Montre selon la revendication 3 caractérisée en ce que l'affichage additionnel des heures (E) est sautant.Watch according to claim 3 characterized in that the additional display of the hours (E) is jumping. Montre selon la revendication 4 caractérisée en ce que le cadran additionnel comporte un affichage des minutes décentré (R2).Watch according to claim 4 characterized in that the additional dial includes a display of off center minutes (R2). Montre selon la revendication 5 caractérisé par un chevillot (C) solidaire de plusieurs moyens de transmission.Watch according to claim 5 characterized by a pin (C) secured to several transmission means. Montre selon la revendication 6 caractérisée par un affichage d'indications supplémentaires comme jour, AM/PM, 24 heures, date, etc.Watch according to claim 6 characterized by a display of additional indications such as day, AM / PM, 24 hours, date, etc.
EP95810082A 1994-02-21 1995-02-08 Watch with two opposite displays Expired - Lifetime EP0668551B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00499/94A CH686543B5 (en) 1994-02-21 1994-02-21 correction mechanism for watch movement.
CH499/94 1994-02-21

Publications (2)

Publication Number Publication Date
EP0668551A1 true EP0668551A1 (en) 1995-08-23
EP0668551B1 EP0668551B1 (en) 1998-01-14

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EP95810082A Expired - Lifetime EP0668551B1 (en) 1994-02-21 1995-02-08 Watch with two opposite displays

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US (1) US5504721A (en)
EP (1) EP0668551B1 (en)
JP (1) JPH07260948A (en)
CH (1) CH686543B5 (en)
DE (1) DE69501408T2 (en)
ES (1) ES2113169T3 (en)

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US7568831B2 (en) 2006-10-06 2009-08-04 Tiffany & Co. Watch Center Ag Tourbillion-type timepiece movement

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US8087978B2 (en) * 2004-11-12 2012-01-03 Stork Townsend Inc. Method and apparatus for removing skin and fat from meat parts
DE602006001298D1 (en) * 2006-05-31 2008-07-03 Montres Breguet Sa Clock comprising an improved time setting device
EP1933210B1 (en) * 2006-12-13 2010-03-10 Compagnie des Montres Longines, Francillon SA Time setting mechanism for an hour indicator
EP2410389B1 (en) * 2010-07-21 2013-10-30 Blancpain S.A. Bi-directional date correction mechanism for a date mechanism. Date mechanism. Time piece.

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FR2503409A1 (en) * 1981-04-01 1982-10-08 Junghans Gmbh Geb ADJUSTMENT DEVICE FOR THE ADJUSTMENT SHAFT OF AN ELECTRONIC WRISTWATCH
EP0504623A1 (en) * 1991-03-20 1992-09-23 Ash Sa Ollier Michel Double time-zone with traversing axe and hand-setting by the crown

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Publication number Priority date Publication date Assignee Title
US1419029A (en) * 1921-06-03 1922-06-06 Doll Otto Dial train
CH462046A (en) * 1966-07-26 1968-10-31 Enicar S A Universal watch
FR2503409A1 (en) * 1981-04-01 1982-10-08 Junghans Gmbh Geb ADJUSTMENT DEVICE FOR THE ADJUSTMENT SHAFT OF AN ELECTRONIC WRISTWATCH
EP0504623A1 (en) * 1991-03-20 1992-09-23 Ash Sa Ollier Michel Double time-zone with traversing axe and hand-setting by the crown

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7568831B2 (en) 2006-10-06 2009-08-04 Tiffany & Co. Watch Center Ag Tourbillion-type timepiece movement

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DE69501408T2 (en) 1998-08-20
CH686543B5 (en) 1996-10-31
JPH07260948A (en) 1995-10-13
CH686543GA3 (en) 1996-04-30
DE69501408D1 (en) 1998-02-19
EP0668551B1 (en) 1998-01-14
ES2113169T3 (en) 1998-04-16
US5504721A (en) 1996-04-02

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