EP3828645A1 - Skeleton watch - Google Patents

Skeleton watch Download PDF

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Publication number
EP3828645A1
EP3828645A1 EP19211924.6A EP19211924A EP3828645A1 EP 3828645 A1 EP3828645 A1 EP 3828645A1 EP 19211924 A EP19211924 A EP 19211924A EP 3828645 A1 EP3828645 A1 EP 3828645A1
Authority
EP
European Patent Office
Prior art keywords
watch
coating
skeleton
movement
transparent
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.)
Pending
Application number
EP19211924.6A
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German (de)
French (fr)
Inventor
M. Vincent LAUCELLA
M. Lucien GERMOND
M. Fabio SCIASCIA
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.)
Montres Breguet SA
Original Assignee
Montres Breguet 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 Montres Breguet SA filed Critical Montres Breguet SA
Priority to EP19211924.6A priority Critical patent/EP3828645A1/en
Priority to CN202022799868.6U priority patent/CN215642253U/en
Publication of EP3828645A1 publication Critical patent/EP3828645A1/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B45/00Time pieces of which the indicating means or cases provoke special effects, e.g. aesthetic effects
    • G04B45/02Time pieces of which the clockwork is visible partly or wholly

Definitions

  • the present invention relates to the technical field of watchmaking. More particularly, it relates to a skeleton type watch comprising a transparent case back.
  • skeleton watch is meant a watch comprising a movement in which certain parts, typically its dial, its plate and / or its bridges are perforated with the aim of making movement components visible to the wearer of the watch.
  • the back of the watch can be made of a transparent material so that the movement is also visible from the back.
  • the present invention relates to a skeleton watch avoiding the aforementioned drawbacks and in particular making it possible not to see the wrist of the wearer when the watch is worn while leaving the movement visible from the back when the watch is not worn.
  • the invention provides a skeleton watch designed to be placed on a support, the watch comprising a case provided with a transparent back and a crystal, and a set of members forming a movement of the skeleton watch, said members being arranged within the case between the back and the crystal and being wholly or partly visible through the crystal.
  • the back comprises a semi-transparent coating designed to conceal the support when the watch is on the latter and to make the movement visible through the back when the watch is not on the support.
  • the present invention relates to a watch of the skeleton type provided with at least one photovoltaic cell, which will also be called a solar cell or simply a cell in the context of this document.
  • the figures 1 and 2 show a skeleton watch 1 which, in a conventional manner, comprises a case formed of the middle part 2, the crystal 3 and the back 4.
  • the crystal is fixed to the middle part 2 in a conventional manner using a bezel L.
  • the case houses all of the components of a conventional mechanical movement.
  • a clockwork movement comprising a supporting structure formed of a plate 5 having a flange which rests on a casing circle machined in the middle part 2 of the case and held in place against this circle. casing by the bezel.
  • the supporting structure of the movement comprises, in addition to the plate 5, a first bridge 6, a second bridge 7, and a third bridge 8, all three fixed to the plate 5.
  • the mechanism of the clockwork movement comprises in particular, among other things, the barrel, the winding mechanism, the motor train and the regulating member is mounted between the plate 5 and one of the three bridges 6, 7, 8.
  • a winding stem passes through the middle part 2 of the watch case and is driven by a winding crown 10.
  • the movement may be a quartz movement.
  • the originality of the skeleton watch lies in the bottom 4 of the watch case.
  • the back 4 of the watch is made of sapphire crystal and comprises a semi-transparent coating 40 arranged to conceal the support on which the watch is located and to make the movement 5 visible through the back 4 when the watch is no longer visible. is not on a medium.
  • the bottom can be made of any other type of glass, such as mineral glass, or transparent material, such as polymethyl methacrylate (PMMA).
  • the support can be the wrist of the wearer or else a support intended for the display of the watch in a window, for example.
  • the coating can be deposited by means of a PVD on the outer face of the base 4, that is to say the face in contact with the support, and comprises a layer of a non-allergenic metal or metal alloy, the coating 40 having a thickness which varies between 1 nm and 100 nm depending on the metal or the alloy used.
  • the coating can also be deposited on the inner face of the bottom 4, or on both sides.
  • the metal or metal alloy layer can be chosen from chromium, titanium, chromium nitride and aluminum.
  • the thickness of the layer is between 1nm and 40nm, the thickness of the layer being at adapt according to that of the transparent bottom 4.
  • the thickness of the layer must also be chosen according to the desired reflectivity and transmission.
  • the coating is a transparent liquid crystal display which can be activated by movement and thus obscure the glass.
  • the coating is made of electrochromic material
  • the base 4 comprises a transparent protective layer 41 superimposed on the coating 40 so as to protect it from scratches, for example.
  • the coating 40 is deposited on the inner face of the transparent bottom 4. Such an embodiment makes it possible to dispense with the protective layer 41.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Surface Treatment Of Glass (AREA)
  • Electric Clocks (AREA)

Abstract

La présente invention se rapporte à une montre squelette agencée pour être placée sur un support, la montre comprenant un boîtier muni d'un fond transparent et d'une glace, et un ensemble d'organes formant un mouvement de la montre squelette, lesdits organes étant disposés au sein du boîtier entre le fond et la glace et étant en tout ou partie visibles au travers de la glace. Selon l'invention, le fond comprend un revêtement semi-transparent agencé pour dissimuler ledit support lorsque la montre est sur ce dernier et rendre visible le mouvement à travers le fond lorsque la montre n'est pas sur ledit support.The present invention relates to a skeleton watch designed to be placed on a support, the watch comprising a case provided with a transparent back and a crystal, and a set of members forming a movement of the skeleton watch, said members being arranged within the case between the back and the crystal and being wholly or partly visible through the crystal. According to the invention, the back comprises a semi-transparent coating designed to conceal said support when the watch is on the latter and to make the movement visible through the back when the watch is not on said support.

Description

OBJET DE L'INVENTIONOBJECT OF THE INVENTION

La présente invention se rapporte au domaine technique de l'horlogerie. Plus particulièrement, elle se rapporte à une montre de type squelette comprenant un fond transparent. Par montre squelette on entend une montre comportant un mouvement dans lequel certaines parties typiquement son cadran, sa platine et/ou ses ponts sont ajourés dans le but de rendre visibles des organes du mouvement par le porteur de la montre.The present invention relates to the technical field of watchmaking. More particularly, it relates to a skeleton type watch comprising a transparent case back. By skeleton watch is meant a watch comprising a movement in which certain parts, typically its dial, its plate and / or its bridges are perforated with the aim of making movement components visible to the wearer of the watch.

ARRIÈRE-PLAN TECHNOLOGIQUE ET ÉTAT DE LA TECHNIQUETECHNOLOGICAL BACKGROUND AND STATE OF THE ART

De telles montres sont connues depuis très longtemps. De façon la plus élémentaire, il suffit de débarrasser la montre de son cadran pour laisser apparaître le mécanisme la constituant. N'apparaîtra alors qu'une partie de ce mécanisme puisque certains organes seront cachés au regard par la platine et les ponts maintenant ensemble le rouage. On a alors proposé d'ajourer autant que faire se peut cette platine et ces ponts ce qui rend visibles des organes cachés sous ces éléments. On parvient ainsi à la montre dite squelette laissant voir la plus grande partie des organes dont elle est constituée. Ce type de montre veut montrer surtout le grand nombre des éléments qui la compose et avec quelle complexité ces éléments sont enchevêtrés. C'est le cas en particulier pour des chronographes ou des montres à grande complication.Such watches have been known for a very long time. In the most basic way, it suffices to remove the watch from its dial to reveal the mechanism constituting it. Only part of this mechanism will then appear since certain components will be hidden from view by the plate and the bridges holding the cog together. It was then proposed to open as much as possible this plate and these bridges which makes visible organs hidden under these elements. We thus arrive at the so-called skeleton watch showing most of the organs of which it is made. This type of watch wants to show above all the large number of the elements which compose it and with what complexity these elements are entangled. This is the case in particular for chronographs or watches with a large complication.

Dans une telle pièce d'horlogerie, le fond de la montre peut être réalisé en un matériau transparent afin que le mouvement soit également visible depuis le fond.In such a timepiece, the back of the watch can be made of a transparent material so that the movement is also visible from the back.

Dans cette configuration, la peau du porteur est visible à travers le fond, ce qui nuit à l'esthétique de la montre.In this configuration, the wearer's skin is visible through the caseback, which is detrimental to the aesthetics of the watch.

RÉSUMÉ DE L'INVENTIONSUMMARY OF THE INVENTION

La présente invention a pour objet une montre squelette évitant les inconvénients précités et permettant notamment de ne pas voir le poignet du porteur lorsque la montre est portée tout en laissant le mouvement visible depuis le fond lorsque la montre n'est pas portée.The present invention relates to a skeleton watch avoiding the aforementioned drawbacks and in particular making it possible not to see the wrist of the wearer when the watch is worn while leaving the movement visible from the back when the watch is not worn.

A cette fin, l'invention propose une montre squelette agencée pour être placée sur un support, la montre comprenant un boîtier muni d'un fond transparent et d'une glace, et un ensemble d'organes formant un mouvement de la montre squelette, lesdits organes étant disposés au sein du boîtier entre le fond et la glace et étant en tout ou partie visibles au travers de la glace.To this end, the invention provides a skeleton watch designed to be placed on a support, the watch comprising a case provided with a transparent back and a crystal, and a set of members forming a movement of the skeleton watch, said members being arranged within the case between the back and the crystal and being wholly or partly visible through the crystal.

Selon l'invention, le fond comprend un revêtement semi-transparent agencé pour dissimuler le support lorsque la montre est sur ce dernier et rendre visible le mouvement à travers le fond lorsque la montre n'est pas sur le support.According to the invention, the back comprises a semi-transparent coating designed to conceal the support when the watch is on the latter and to make the movement visible through the back when the watch is not on the support.

Conformément à d'autres variantes avantageuses de l'invention :

  • le revêtement est une couche métallique choisie parmi le chrome, le titane, le nitrure de chrome et l'aluminium, ladite couche présentant une épaisseur comprise entre 1nm et 100nm ;
  • le revêtement est déposé sur la face extérieure du fond ;
  • le revêtement est déposé sur la face intérieure du fond ;
  • le revêtement est déposé sur la face intérieure et sur la face extérieure du fond ;
  • le fond est réalisé en verre saphir, en verre minéral, ou tout autre matière transparente ;
  • le revêtement est un affichage à cristaux liquides transparent ;
  • le revêtement est un revêtement en matériau électrochrome ;
  • le fond peut comprendre une couche protectrice transparente superposée sur ladite couche métallique ;
  • la montre comprend un mouvement à quartz ou un mouvement mécanique.
In accordance with other advantageous variants of the invention:
  • the coating is a metallic layer chosen from chromium, titanium, chromium nitride and aluminum, said layer having a thickness of between 1nm and 100nm;
  • the coating is deposited on the outer face of the base;
  • the coating is deposited on the inner face of the base;
  • the coating is deposited on the inner face and on the outer face of the base;
  • the back is made of sapphire crystal, mineral glass, or any other transparent material;
  • the coating is a transparent liquid crystal display;
  • the coating is a coating of electrochromic material;
  • the bottom may comprise a transparent protective layer superimposed on said metallic layer;
  • the watch includes a quartz movement or a mechanical movement.

BRÈVE DESCRIPTION DES FIGURESBRIEF DESCRIPTION OF THE FIGURES

Les caractéristiques et avantages de la présente invention apparaîtront à la lecture de la description détaillée ci-dessous faisant référence aux figures suivantes.

  • Les figures 1 et 2 représentent respectivement une vue du dessus et une vue en coupe de la montre squelette selon un mode de réalisation préféré de l'invention.
  • La figure 3 est une vue schématique du fond de la montre selon l'invention.
The characteristics and advantages of the present invention will become apparent on reading the detailed description below with reference to the following figures.
  • The figures 1 and 2 respectively show a top view and a sectional view of the skeleton watch according to a preferred embodiment of the invention.
  • The figure 3 is a schematic view of the back of the watch according to the invention.

DESCRIPTION DÉTAILLÉE DE L'INVENTIONDETAILED DESCRIPTION OF THE INVENTION

La présente invention se rapporte à une montre du type squelette pourvue d'au moins une cellule photovoltaïque, qu'on appellera aussi cellule solaire ou simplement cellule dans le cadre de ce document.The present invention relates to a watch of the skeleton type provided with at least one photovoltaic cell, which will also be called a solar cell or simply a cell in the context of this document.

Les figures 1 et 2 représentent une montre squelette 1 qui, de manière classique, comporte un boîtier formé de la carrure 2, de la glace 3 et du fond 4. La glace est fixée sur la carrure 2 de manière classique à l'aide d'une lunette L. Dans l'exemple illustré, le boîtier abrite l'ensemble des organes d'un mouvement mécanique classique. On peut voir sur les figures notamment un mouvement d'horlogerie comportant une structure porteuse formée d'une platine 5 ayant un rebord venant s'appuyer sur un cercle d'emboîtage usiné dans la carrure 2 de la boite et maintenue en place contre ce cercle d'emboîtage par la lunette.The figures 1 and 2 show a skeleton watch 1 which, in a conventional manner, comprises a case formed of the middle part 2, the crystal 3 and the back 4. The crystal is fixed to the middle part 2 in a conventional manner using a bezel L. In the example illustrated, the case houses all of the components of a conventional mechanical movement. One can see in the figures in particular a clockwork movement comprising a supporting structure formed of a plate 5 having a flange which rests on a casing circle machined in the middle part 2 of the case and held in place against this circle. casing by the bezel.

La structure porteuse du mouvement comporte outre la platine 5, un premier pont 6, un second pont 7, et un troisième pont 8, tous trois fixés sur la platine 5.The supporting structure of the movement comprises, in addition to the plate 5, a first bridge 6, a second bridge 7, and a third bridge 8, all three fixed to the plate 5.

Le mécanisme du mouvement d'horlogerie comprend notamment entre autre le barillet, le mécanisme de remontage, le rouage moteur et l'organe réglant est monté entre la platine 5 et l'un des trois ponts 6, 7, 8. Une tige de remontoir traverse la carrure 2 de la boite de montre et est entraînée par une couronne de remontoir 10. Selon une variante non représentée le mouvement peut être un mouvement à quartz.The mechanism of the clockwork movement comprises in particular, among other things, the barrel, the winding mechanism, the motor train and the regulating member is mounted between the plate 5 and one of the three bridges 6, 7, 8. A winding stem passes through the middle part 2 of the watch case and is driven by a winding crown 10. According to a variant not shown, the movement may be a quartz movement.

L'originalité de la montre squelette réside dans le fond 4 de la boîte de montre.The originality of the skeleton watch lies in the bottom 4 of the watch case.

Selon l'invention, le fond 4 de la montre est réalisé en verre saphir et comprend un revêtement 40 semi-transparent agencé pour dissimuler le support sur laquelle la montre se trouve et rendre visible le mouvement 5 à travers le fond 4 lorsque la montre n'est pas sur un support. Bien évidemment, le fond peut être réalisé en tout autre type de verre, tel que du verre minéral, ou matière transparente, telle que du polyméthacrylate de méthyle (PMMA).According to the invention, the back 4 of the watch is made of sapphire crystal and comprises a semi-transparent coating 40 arranged to conceal the support on which the watch is located and to make the movement 5 visible through the back 4 when the watch is no longer visible. is not on a medium. Obviously, the bottom can be made of any other type of glass, such as mineral glass, or transparent material, such as polymethyl methacrylate (PMMA).

Le support peut être le poignet du porteur ou encore un support destiné à l'exposition de la montre en vitrine par exemple.The support can be the wrist of the wearer or else a support intended for the display of the watch in a window, for example.

Le revêtement peut être déposé par le biais d'une PVD sur la face extérieure du fond 4, c'est-à-dire la face en contact avec le support, et comprend une couche d'une métal ou alliage métallique non-allergène, le revêtement 40 présentant une épaisseur qui varie entre 1nm et 100nm selon le métal ou l'alliage utilisé. Le revêtement peut aussi être déposé sur la face intérieure du fond 4, ou sur les deux faces.The coating can be deposited by means of a PVD on the outer face of the base 4, that is to say the face in contact with the support, and comprises a layer of a non-allergenic metal or metal alloy, the coating 40 having a thickness which varies between 1 nm and 100 nm depending on the metal or the alloy used. The coating can also be deposited on the inner face of the bottom 4, or on both sides.

La couche métallique ou en alliage métallique peut être choisie parmi le chrome, le titane, le nitrure de chrome et l'aluminium.The metal or metal alloy layer can be chosen from chromium, titanium, chromium nitride and aluminum.

Par exemple, dans le cas d'une couche en aluminium, l'épaisseur de la couche est comprise entre 1nm et 40nm, l'épaisseur de la couche étant à adapter en fonction de celle du fond transparent 4. L'épaisseur de la couche doit également être choisie en fonction de la réflectivité et la transmission souhaitées.For example, in the case of an aluminum layer, the thickness of the layer is between 1nm and 40nm, the thickness of the layer being at adapt according to that of the transparent bottom 4. The thickness of the layer must also be chosen according to the desired reflectivity and transmission.

Selon une première variante de l'invention, le revêtement est un affichage à cristaux liquides transparent qui peut être activé par le mouvement et ainsi obscurcir la glace.According to a first variant of the invention, the coating is a transparent liquid crystal display which can be activated by movement and thus obscure the glass.

Selon une deuxième variante, le revêtement est réalisé en matériau électrochromeAccording to a second variant, the coating is made of electrochromic material

Selon un mode de réalisation particulier de l'invention, le fond 4 comprend une couche protectrice transparente 41 superposée sur le revêtement 40 de manière à la protéger des éraflures par exemple.According to a particular embodiment of the invention, the base 4 comprises a transparent protective layer 41 superimposed on the coating 40 so as to protect it from scratches, for example.

Selon un autre mode de réalisation non représenté sur les figures, le revêtement 40 est déposé sur la face intérieure du fond transparent 4. Un tel mode de réalisation permet de s'affranchir de la couche protectrice 41.According to another embodiment not shown in the figures, the coating 40 is deposited on the inner face of the transparent bottom 4. Such an embodiment makes it possible to dispense with the protective layer 41.

Bien entendu, la présente invention ne se limite pas à l'exemple illustré et est susceptible de diverses variantes et modifications qui apparaîtront à l'homme de l'art.Of course, the present invention is not limited to the example illustrated and is susceptible of various variants and modifications which will appear to those skilled in the art.

Claims (10)

Montre squelette (1) agencée pour être placée sur un support, la montre (1) comprenant un boîtier muni d'un fond (4) transparent et d'une glace (3), et un ensemble d'organes formant un mouvement (5) de la montre squelette (1), lesdits organes étant disposés au sein du boîtier entre le fond (4) et la glace (3) et étant en tout ou partie visibles au travers de la glace (3), caractérisée en ce que ledit fond comprend un revêtement semi-transparent agencé pour dissimuler ledit support lorsque la montre est sur ce dernier et rendre visible le mouvement (5) à travers le fond lorsque la montre n'est pas sur ledit support.Skeleton watch (1) arranged to be placed on a support, the watch (1) comprising a case provided with a transparent back (4) and a crystal (3), and a set of members forming a movement (5 ) of the skeleton watch (1), said members being arranged within the case between the back (4) and the crystal (3) and being wholly or partly visible through the crystal (3), characterized in that said back comprises a semi-transparent coating arranged to conceal said support when the watch is on the latter and to make visible the movement (5) through the back when the watch is not on said support. Montre squelette (1) selon la revendication 1, dans laquelle ledit revêtement est une couche métallique choisie parmi le chrome, le titane, le nitrure de chrome et l'aluminium, ladite couche présentant une épaisseur comprise entre 1nm et 100nm.Skeleton watch (1) according to claim 1, wherein said coating is a metallic layer selected from chromium, titanium, chromium nitride and aluminum, said layer having a thickness between 1nm and 100nm. Montre squelette (1) selon la revendication 1 ou 2, dans laquelle ledit revêtement (40) est déposé sur la face extérieure du fond (4).Skeleton watch (1) according to claim 1 or 2, wherein said coating (40) is deposited on the outer face of the back (4). Montre squelette (1) selon la revendication 1 ou 2, dans laquelle ledit revêtement (40) est déposé sur la face intérieure du fond (4).Skeleton watch (1) according to claim 1 or 2, wherein said coating (40) is deposited on the inner face of the back (4). Montre squelette (1) selon la revendication 1 ou 2, dans laquelle ledit revêtement (40) est déposé sur la face extérieure et la face intérieure du fond (4).Skeleton watch (1) according to claim 1 or 2, in which said coating (40) is deposited on the exterior face and the interior face of the back (4). Montre squelette (1) selon l'une des revendications 1 à 4, dans laquelle ledit revêtement est un affichage à cristaux liquides transparent.A skeleton watch (1) according to one of claims 1 to 4, wherein said coating is a transparent liquid crystal display. Montre squelette (1) selon les revendications 1 et 3 à 5, dans laquelle ledit revêtement est un revêtement en matériau électrochrome.Skeleton watch (1) according to claims 1 and 3 to 5, wherein said coating is a coating of electrochromic material. Montre squelette (1) selon l'une des revendications précédentes, dans laquelle le fond (4) est réalisé en verre saphir, en verre minéral, ou tout autre matière transparente.Skeleton watch (1) according to one of the preceding claims, in which the back (4) is made of sapphire glass, mineral glass, or any other transparent material. Montre squelette (1) selon l'une des revendications précédentes, dans laquelle le fond comprend une couche protectrice transparente (41) superposée sur le revêtement (40).Skeleton watch (1) according to one of the preceding claims, in which the back comprises a transparent protective layer (41) superimposed on the coating (40). Montre squelette (1) selon l'une quelconque des revendications précédentes, comprenant un mouvement à quartz ou un mouvement mécanique.Skeleton watch (1) according to any one of the preceding claims, comprising a quartz movement or a mechanical movement.
EP19211924.6A 2019-11-27 2019-11-27 Skeleton watch Pending EP3828645A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19211924.6A EP3828645A1 (en) 2019-11-27 2019-11-27 Skeleton watch
CN202022799868.6U CN215642253U (en) 2019-11-27 2020-11-27 Skeleton watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19211924.6A EP3828645A1 (en) 2019-11-27 2019-11-27 Skeleton watch

Publications (1)

Publication Number Publication Date
EP3828645A1 true EP3828645A1 (en) 2021-06-02

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Application Number Title Priority Date Filing Date
EP19211924.6A Pending EP3828645A1 (en) 2019-11-27 2019-11-27 Skeleton watch

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EP (1) EP3828645A1 (en)
CN (1) CN215642253U (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004006026A2 (en) * 2002-07-09 2004-01-15 Tag-Heuer Sa Clock movement for wristwatch
CH699165B1 (en) * 2008-06-02 2010-01-29 Cartier Creation Studio Sa Watch i.e. skeleton watch, has clock movement housed in case and including supporting structure with plate whose openings are arranged such that structure allows appearance of indexes to be cooperated with movable time display unit
CH702419A2 (en) * 2009-12-22 2011-06-30 Swatch Group Res & Dev Ltd Timepiece i.e. electronic watch, has luminous device arranged so as to project shades of element arranged between luminous device and bottom of case or dial over dial or bottom of case when luminous device is utilized
US20170075314A1 (en) * 2015-09-11 2017-03-16 Lenovo (Singapore) Pte. Ltd. Gauge opacity control

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004006026A2 (en) * 2002-07-09 2004-01-15 Tag-Heuer Sa Clock movement for wristwatch
CH699165B1 (en) * 2008-06-02 2010-01-29 Cartier Creation Studio Sa Watch i.e. skeleton watch, has clock movement housed in case and including supporting structure with plate whose openings are arranged such that structure allows appearance of indexes to be cooperated with movable time display unit
CH702419A2 (en) * 2009-12-22 2011-06-30 Swatch Group Res & Dev Ltd Timepiece i.e. electronic watch, has luminous device arranged so as to project shades of element arranged between luminous device and bottom of case or dial over dial or bottom of case when luminous device is utilized
US20170075314A1 (en) * 2015-09-11 2017-03-16 Lenovo (Singapore) Pte. Ltd. Gauge opacity control

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Publication number Publication date
CN215642253U (en) 2022-01-25

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