EP0131266A1 - Watch case - Google Patents

Watch case Download PDF

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Publication number
EP0131266A1
EP0131266A1 EP84107867A EP84107867A EP0131266A1 EP 0131266 A1 EP0131266 A1 EP 0131266A1 EP 84107867 A EP84107867 A EP 84107867A EP 84107867 A EP84107867 A EP 84107867A EP 0131266 A1 EP0131266 A1 EP 0131266A1
Authority
EP
European Patent Office
Prior art keywords
plates
watch case
case according
watch
plate
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.)
Granted
Application number
EP84107867A
Other languages
German (de)
French (fr)
Other versions
EP0131266B1 (en
Inventor
Jacques Cognard
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 SA Manufacture Horlogere Suisse
Ebauchesfabrik ETA AG
Original Assignee
Ebauchesfabrik ETA AG
Eta SA Fabriques dEbauches
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 Ebauchesfabrik ETA AG, Eta SA Fabriques dEbauches filed Critical Ebauchesfabrik ETA AG
Publication of EP0131266A1 publication Critical patent/EP0131266A1/en
Application granted granted Critical
Publication of EP0131266B1 publication Critical patent/EP0131266B1/en
Expired 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
    • G04B37/00—Cases
    • G04B37/0008—Cases for pocket watches and wrist watches
    • G04B37/0058—Cases for pocket watches and wrist watches for shaped watches
    • 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
    • G04B37/00—Cases
    • G04B37/22—Materials or processes of manufacturing pocket watch or wrist watch cases

Definitions

  • the present invention relates to watch cases. It relates, more particularly, to a new structure of a watch case made of metal or metal compound.
  • watch boxes made of metal compound are made by sintering and watch boxes made of metal by stamping, stamping or molding, before being subjected to finishing operations which, due to the external shapes box complexes, require several repetitions and represent a large part of the cost price of the product.
  • the object of the present invention is to reduce the costs of manufacturing watch boxes made of metal or of a metal compound, at the same time as enabling new aesthetic effects.
  • the watch case according to the invention is formed by a stack of plates, one of which constitutes the bottom of the case and the others of which are cut internally and form the middle part.
  • the watch shown in Figures 1a and 1b includes a box 10 which consists of a bottom 12, a middle part 14, a bezel 16 and a crystal 18.
  • the box contains a movement 20, a setting rod at hour 22, hour, minute and second hands 24 and a dial 26.
  • the box of this watch is formed by a stack of eight plates numbered from 28 to 42.
  • the bottom 12 is constituted by the plate 28 and the bezel 16 by the plate 42.
  • the intermediate plates 30 to 40 constitute the middle part 14, the plate 36 forming, at the same time, the dial 26.
  • Plates 28 to 42 are roughly shaped like hexagons. Their external dimensions are advantageously chosen so as to obtain a staircase middle profile, as it appears in Figures la and lb.
  • holes 60 are provided in the plates 28 to 40 to allow the passage of the screw-feet 44 and the screws 46.
  • the plate 42 has a circular central opening closed by the glass 18.
  • the fixing thereof is advantageously carried out by gluing.
  • the plate may itself be transparent and thus act as ice.
  • Circular openings 45 and 47 made respectively in the plates 38 and 40, define a housing for the needles 24.
  • the plate 36 which acts as a dial, carries the indexes 48 and further comprises a small central hole 50 providing passage to the trees with needles.
  • Circular openings 52, 54 and 56 made respectively in the plates 30, 32 and 34, define a housing for the movement 20 of the watch.
  • the opening 56 is slightly larger than the openings 52 and 54, so as to allow the internal edge of the plate 32 to be used as a seat for a thread 58 formed at the top of the movement 20.
  • the plate 32 also has two ears 62 serving as fasteners for the watch strap.
  • the plates can be simply joined by gluing. A waterproof watch is thus obtained, but it is not possible to repair.
  • the movement 20 is first set up in the half-middle formed by the plates 28, 30, 32 and 34.
  • the plate 36, forming the dial 26, then the hands 24, are then put in place. It then only remains to cover the needles with all of the glued plates 38, 40 and 42 and to join together using the screws 46.
  • the watch may comprise, in a more conventional manner, a dial which is carried by the movement.
  • the plate 36 has an opening having substantially the same dimension as the openings 44 and 46 of the plates 38 and 40.
  • Metals and metallic compounds offer the most interesting characteristics. Stainless steel, by its moderate cost, its pleasant appearance, its mechanical and chemical resistance and its machinability, lends itself particularly well to the production of boxes according to the invention. Copper or aluminum alloys offer a wide variety of colors, thanks to the surface treatments they can undergo.
  • Obtaining particularly resistant boxes is possible by the use of plates of metal compounds such as nitrides, carbides and borides of tantalum, titanium, tungsten, vanadium, etc., and oxides such as alumina.
  • the metal plates are preferably cut into strips, by means of a progressive stamp which makes the interior openings before cutting the exterior shape.
  • the metal compound plates are produced by sintering, in molds which define the interior and exterior shapes.
  • the plates are then subjected to the finishing operations, by grinding, brushing and / or polishing. As the plates are flat, it is possible to automate these operations.
  • the invention makes it possible to reduce the costs of manufacturing watch cases while giving the possibility of creating original case shapes and middle profiles.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electric Clocks (AREA)
  • Telephone Function (AREA)
  • Adornments (AREA)
  • Inorganic Insulating Materials (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Magnetic Treatment Devices (AREA)

Abstract

A watch case is described made of metal or metal compound, comprising a back, a middle and a bezel. The case is made up of a stack of plates with one plate forming the back cover and the others being formed with openings and forming the middle and the bezel.

Description

La présente invention se rapporte aux boites de montres. Elle concerne, plus particulièrement, une nouvelle structure de boite de montre en métal ou composé métallique.The present invention relates to watch cases. It relates, more particularly, to a new structure of a watch case made of metal or metal compound.

Dans l'état actuel de la technique, les boites de montres en composé métallique sont réalisées par frittage et les boites de montres métalliques par emboutissage, étampage ou moulage, avant d'être soumises à des opérations de finition qui, en raison des formes extérieures complexes de la boite, nécessitent plusieurs reprises et représentent une large part du prix de revient du produit.In the current state of the art, watch boxes made of metal compound are made by sintering and watch boxes made of metal by stamping, stamping or molding, before being subjected to finishing operations which, due to the external shapes box complexes, require several repetitions and represent a large part of the cost price of the product.

La présente invention a pour but de réduire les coûts de fabrication des boites de montres en métal ou en composé métallique, en même temps que permettre des effets esthétiques nouveaux.The object of the present invention is to reduce the costs of manufacturing watch boxes made of metal or of a metal compound, at the same time as enabling new aesthetic effects.

Pour atteindre ce but, la boite de montre selon l'invention est formée d'un empilement de plaques dont l'une constitue le fond de la boite et dont les autres sont découpées intérieurement et forment la carrure.To achieve this object, the watch case according to the invention is formed by a stack of plates, one of which constitutes the bottom of the case and the others of which are cut internally and form the middle part.

D'autres caractéristiques de l'invention, ainsi que ses avantages, ressortiront de la description qui va suivre, faite en regard des dessins annexés et donnant, à titre explicatif mais nullement limitatif, une forme avantageuse de réalisation d'une telle boite.Other characteristics of the invention, as well as its advantages, will emerge from the description which follows, given with reference to the appended drawings and giving, by way of explanation but in no way limiting, an advantageous embodiment of such a box.

Sur ces dessins :

  • - les figures la et lb représentent de façon schématique, en plan et en coupe, une montre possédant une boite selon l'invention; et
  • - la figure 2 représente chacune des plaques formant la boite de la montre représentée aux figures la et 1b.
In these drawings:
  • - Figures la and lb show schematically, in plan and in section, a watch having a case according to the invention; and
  • - Figure 2 shows each of the plates forming the watch case shown in Figures la and 1b.

La montre représentée aux figures la ea lb comporte une boîte 10 qui est constituée d'un fond 12, d'une carrure 14, d'une lunette 16 et d'une glace 18. La boite renferme un mouvement 20, une tige de mise à l'heure 22, des aiguilles d'heure, de minute et de seconde 24 et un cadran 26.The watch shown in Figures 1a and 1b includes a box 10 which consists of a bottom 12, a middle part 14, a bezel 16 and a crystal 18. The box contains a movement 20, a setting rod at hour 22, hour, minute and second hands 24 and a dial 26.

Ainsi qu'il ressort des dessins, la boite de cette montre est formée d'un empilement de huit plaques numérotées de 28 à 42. Le fond 12 est constitué par la plaque 28 et la lunette 16 par la plaque 42. Les plaques intermédiaires 30 à 40 constituent la carrure 14, la plaque 36 formant, en même temps, le cadran 26.As is apparent from the drawings, the box of this watch is formed by a stack of eight plates numbered from 28 to 42. The bottom 12 is constituted by the plate 28 and the bezel 16 by the plate 42. The intermediate plates 30 to 40 constitute the middle part 14, the plate 36 forming, at the same time, the dial 26.

Les plaques 28 à 42 ont grossièrement la forme d'hexagones. Leurs dimensions extérieures sont avantageusement choisies de manière à obtenir un profil de carrure en escalier, tel qu'il apparaît sur les figures la et lb.Plates 28 to 42 are roughly shaped like hexagons. Their external dimensions are advantageously chosen so as to obtain a staircase middle profile, as it appears in Figures la and lb.

Toutes ces plaques sont assemblées au moyen de quatre pieds-vis 44 soudés à la plaque supérieure 42 et de quatre vis 46 s'engageant dans les pieds-vis et, dont la tête prend appui contre la plaque inférieure 28. La figure lb montre seulement un pied-vis et une vis.All these plates are assembled by means of four screw feet 44 welded to the upper plate 42 and four screws 46 engaging in the screw feet and, the head of which bears against the lower plate 28. Figure lb shows only a screw-foot and a screw.

Naturellement, des trous 60 (figure 2) sont prévus dans les plaques 28 à 40 pour permettre le passage des pieds-vis 44 et des vis 46.Naturally, holes 60 (FIG. 2) are provided in the plates 28 to 40 to allow the passage of the screw-feet 44 and the screws 46.

La plaque 42 comporte une ouverture centrale circulaire obturée par la glace 18. La fixation de celle-ci est avantageusement réalisée par collage. En variante, la plaque peut, elle-même, être transparente et faire ainsi office de glace.The plate 42 has a circular central opening closed by the glass 18. The fixing thereof is advantageously carried out by gluing. Alternatively, the plate may itself be transparent and thus act as ice.

Des ouvertures circulaires 45 et 47, pratiquées respectivement dans les plaques 38 et 40, définissent un logement pour les aiguilles 24. La plaque 36, qui fait office de cadran, porte des index 48 et comporte en outre un petit trou central 50 livrant passage aux arbres portant les aiguilles. Des ouvertures circulaires 52, 54 et 56, pratiquées respectivement dans les plaques 30, 32 et 34, définissent un logement pour le mouvement 20 de la montre. L'ouverture 56 est légèrement plus grande que les ouvertures 52 et 54, de manière à permettre l'utilisation du bord interne de la plaque 32 comme assise pour un filet 58 ménagé à la partie supérieure du mouvement 20.Circular openings 45 and 47, made respectively in the plates 38 and 40, define a housing for the needles 24. The plate 36, which acts as a dial, carries the indexes 48 and further comprises a small central hole 50 providing passage to the trees with needles. Circular openings 52, 54 and 56, made respectively in the plates 30, 32 and 34, define a housing for the movement 20 of the watch. The opening 56 is slightly larger than the openings 52 and 54, so as to allow the internal edge of the plate 32 to be used as a seat for a thread 58 formed at the top of the movement 20.

La plaque 32 présente en outre deux oreilles 62 servant d'attaches pour le bracelet de la montre.The plate 32 also has two ears 62 serving as fasteners for the watch strap.

Au lieu d'être assemblées à l'aide de vis, les plaques peuvent être simplement réunies par collage. On obtient ainsi une montre étanche, mais qu'il n'est pas possible de réparer.Instead of being assembled using screws, the plates can be simply joined by gluing. A waterproof watch is thus obtained, but it is not possible to repair.

Si l'on souhaite cependant conserver la possibilité d'ouvrir la la boite, il peut être avantageux de prévoir une solution mixte, consistant à assembler par collage, d'une part, les plaques 28, 30, 32 et 34 et, d'autre part, les plaques 38, 40 et 42. Ainsi, le mouvement 20 est d'abord mis en place dans la demi-carrure que forment les plaques 28, 30, 32 et 34. La plaque 36, formant le cadran 26, puis les aiguilles 24, sont ensuite mises en place. 11 ne reste plus alors qu'à recouvrir les aiguilles par l'ensemble des plaques collées 38, 40 et 42 et à solidariser le tout à l'aide des vis 46.If, however, it is desired to keep the possibility of opening the box, it may be advantageous to provide a mixed solution, consisting in assembling by bonding, on the one hand, the plates 28, 30, 32 and 34 and, on the other hand, plates 38, 40 and 42. Thus, the movement 20 is first set up in the half-middle formed by the plates 28, 30, 32 and 34. The plate 36, forming the dial 26, then the hands 24, are then put in place. It then only remains to cover the needles with all of the glued plates 38, 40 and 42 and to join together using the screws 46.

Il est également possible d'avoir une montre pouvant être ouverte sans, pour autant, utiliser de vis. Il suffit, pour cela, de coller la plaque 36 sur la plaque 34, ainsi que Ta plaqué 38 sur la plaque 36, à l'aide d'une colle qui peut être dissoute par de l'eau chaude.It is also possible to have a watch that can be opened without, however, using screws. For this, it suffices to stick the plate 36 on the plate 34, as well as the plated 38 on the plate 36, using an adhesive which can be dissolved by hot water.

En variante, la montre peut comporter, de manière plus classique, un cadran qui est porté par le mouvement. Dans ce cas, la plaque 36 comporte une ouverture ayant sensiblement la même dimension que les ouvertures 44 et 46 des plaques 38 et 40.As a variant, the watch may comprise, in a more conventional manner, a dial which is carried by the movement. In this case, the plate 36 has an opening having substantially the same dimension as the openings 44 and 46 of the plates 38 and 40.

Le choix des matériaux utilisés pour la fabrication des plaques fait intervenir leur coût, leur aspect ainsi que leur résistance mécanique et chimique.The choice of materials used to manufacture the plates involves their cost, their appearance as well as their mechanical and chemical resistance.

Les métaux et les composés métalliques offrent les caractéristiques les plus intéressantes. L'acier inoxydable, par son coût modéré, son aspect agréable, sa résistance mécanique et chimique et son usinabilité, se prête particulièrement bien à la réalisation de boites selon l'invention. Les alliages de cuivre ou d'aluminium offrent une grande diversité de coloris, grâce aux traitements de surface qu'ils peuvent subir.Metals and metallic compounds offer the most interesting characteristics. Stainless steel, by its moderate cost, its pleasant appearance, its mechanical and chemical resistance and its machinability, lends itself particularly well to the production of boxes according to the invention. Copper or aluminum alloys offer a wide variety of colors, thanks to the surface treatments they can undergo.

L'obtention de boites particulièrement résistantes est possible par l'utilisation de plaques en composés métalliques tels que des nitrures, des carbures et des borures de tantale, titane, tungstène, vanadium, etc., et des oxydes tels que l'alumine.Obtaining particularly resistant boxes is possible by the use of plates of metal compounds such as nitrides, carbides and borides of tantalum, titanium, tungsten, vanadium, etc., and oxides such as alumina.

Les plaques en métal sont de préférence découpées dans des bandes, au moyen d'une étampe progressive qui pratique les ouvertures intérieures avant de découper la forme extérieure. Les plaques en composés métalliques sont fabriquées par frittage, dans des moules qui définissent les formes intérieure et extérieure.The metal plates are preferably cut into strips, by means of a progressive stamp which makes the interior openings before cutting the exterior shape. The metal compound plates are produced by sintering, in molds which define the interior and exterior shapes.

Dans les deux cas, les plaques subissent ensuite les opérations de finition, par meulage, brossage et/ou polissage. Les plaques étant planes, il est possible d'automatiser ces opérations.In both cases, the plates are then subjected to the finishing operations, by grinding, brushing and / or polishing. As the plates are flat, it is possible to automate these operations.

Les plaques subissent enfin, s'il y a lieu, un traitement de surface qui leur confère leur aspect définitif, puis elles sont assemblées comme cela a été décrit précédemment.Finally, the plates are subjected to a treatment of surface which gives them their final appearance, then they are assembled as described above.

Pour modifier la forme extérieure de la boite, il suffit de changer une matrice et un poinçon de chacune des étampes progressives, ou la partie extérieure du moule. Ces changements sont peu coûteux, les formes étant en général très simples.To modify the external shape of the box, simply change a die and a punch of each of the progressive stamps, or the external part of the mold. These changes are inexpensive, the forms being generally very simple.

Il apparaît ainsi que l'invention permet de réduire les coûts de fabrication des boites de montre tout en donnant la possibilité de créer des formes de boites et des profils de carrures originaux.It thus appears that the invention makes it possible to reduce the costs of manufacturing watch cases while giving the possibility of creating original case shapes and middle profiles.

Claims (9)

1. Boîte de montre en métal ou en un composé métallique, comprenant un fond et une carrure, caractérisée en ce qu'elle est formée d'un empilement de plaques dont l'une constitue le fond et dont les autres sont découpées intérieurement et forment la carrure.1. Watch case made of metal or a metallic compound, comprising a base and a middle part, characterized in that it is formed of a stack of plates, one of which constitutes the base and the others of which are cut internally and form the build. 2. Boîte de montre selon la revendication 1, caractérisée en ce que l'empilement comporte, en plus, une plaque formant une lunette qui porte la glace.2. Watch case according to claim 1, characterized in that the stack comprises, in addition, a plate forming a bezel which carries the crystal. 3. Boîte de montre selon la revendication 1 ou 2, caractérisée en ce que lesdites plaques sont en acier inoxydable.3. Watch case according to claim 1 or 2, characterized in that said plates are made of stainless steel. 4. Boîte de montre selon la revendication 1 ou 2, caractérisée en ce que lesdites plaques sont réalisées en un composé métallique choisi parmi les nitrures, les carbures, les borures de tantale, titane, tungstène et vanadium, et l'oxyde d'aluminium.4. Watch case according to claim 1 or 2, characterized in that said plates are made of a metallic compound chosen from nitrides, carbides, tantalum borides, titanium, tungsten and vanadium, and aluminum oxide . 5. Boite de montre selon la revendication 1, caractérisée en ce que l'empilement comporte, en plus, une plaque transparente formant la glace.5. Watch case according to claim 1, characterized in that the stack comprises, in addition, a transparent plate forming the ice. 6. Boite de montre selon l'une des revendications précédentes, caractérisée en ce que l'empilement comporte une plaque supplémentaire formant le cadran de la montre.6. Watch case according to one of the preceding claims, characterized in that the stack comprises an additional plate forming the dial of the watch. 7. Boîte de montre selon l'une des revendications précédentes, du type comportant des attaches de bracelet, caractérisée en ce que l'une des plaques présente des oreilles servant d'attaches pour le bracelet.7. Watch case according to one of the preceding claims, of the type comprising strap attachments, characterized in that one of the plates has ears serving as attachments for the strap. 8. Boite de montre selon l'une des revendications précédentes, caractérisée en ce que les plaques sont assemblées à l'aide de vis.8. Watch case according to one of the preceding claims, characterized in that the plates are assembled using screws. 9. Boite de montre selon l'une des revendications précédentes, caractérisée en ce que les plaques sont assemblées par collage.9. Watch case according to one of the preceding claims, characterized in that the plates are assembled by gluing.
EP84107867A 1983-07-08 1984-07-05 Watch case Expired EP0131266B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH375783A CH651998GA3 (en) 1983-07-08 1983-07-08
CH3757/83 1983-07-08

Publications (2)

Publication Number Publication Date
EP0131266A1 true EP0131266A1 (en) 1985-01-16
EP0131266B1 EP0131266B1 (en) 1987-05-06

Family

ID=4262838

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84107867A Expired EP0131266B1 (en) 1983-07-08 1984-07-05 Watch case

Country Status (6)

Country Link
US (1) US4580907A (en)
EP (1) EP0131266B1 (en)
JP (1) JPS6038681A (en)
CH (1) CH651998GA3 (en)
DE (1) DE3463579D1 (en)
HK (1) HK45291A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0312605A (en) * 1989-06-09 1991-01-21 Topcon Corp Multi-layered film mirror reflecting two-wavelength of ultraviolet-light and visible-light
US5479686A (en) * 1991-04-12 1996-01-02 Crash Holding Ag Process for producing a case for receiving a watchwork
US5513039A (en) * 1993-05-26 1996-04-30 Litton Systems, Inc. Ultraviolet resistive coated mirror and method of fabrication
GB2284490B (en) * 1993-11-30 1998-07-01 Citizen Watch Co Ltd Structure of a watch
US5844863A (en) * 1997-02-28 1998-12-01 Voss; Wolf-Dieter Modular time piece
US8366313B2 (en) * 2009-08-04 2013-02-05 Daniel Scioscia Wrist mounted watchcase having separable main body and surrounding protective frame and wristwatch incorporating same
US8870449B2 (en) 2009-08-04 2014-10-28 Daniel Scioscia Wrist mounted watchcase having separable main body and surrounding protective frame and wristwatch incorporating same
JP5824969B2 (en) * 2011-08-29 2015-12-02 セイコーエプソン株式会社 Cover glass and watch
USD959292S1 (en) * 2022-02-07 2022-08-02 Herbert Jennings Wristwatch

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1294959U (en) * 1934-02-23 1934-03-29
CH287616A (en) * 1949-06-29 1952-12-15 Lip Horlogerie Method of manufacturing watch parts.
FR1304462A (en) * 1961-10-25 1962-09-21 Schlup & Cie S A Improvement in watch cases
FR1591774A (en) * 1967-12-01 1970-05-04
FR2251044A1 (en) * 1973-11-09 1975-06-06 Sakura Ag
SU482710A1 (en) * 1974-01-30 1975-08-30 Петродворцовый Ордена Трудового Красного Знамени Часовой Завод Waterproof watch case

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH619100B (en) * 1977-12-15 Lang Louis Sa WATERPROOF SHAPE WATCH BOX.
WO1982004134A1 (en) * 1981-05-01 1982-11-25 Rado Sa Montres Waterproof watchcase
JPS58129282A (en) * 1982-01-27 1983-08-02 Citizen Watch Co Ltd Structure of glass part for watch case

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1294959U (en) * 1934-02-23 1934-03-29
CH287616A (en) * 1949-06-29 1952-12-15 Lip Horlogerie Method of manufacturing watch parts.
FR1304462A (en) * 1961-10-25 1962-09-21 Schlup & Cie S A Improvement in watch cases
FR1591774A (en) * 1967-12-01 1970-05-04
FR2251044A1 (en) * 1973-11-09 1975-06-06 Sakura Ag
SU482710A1 (en) * 1974-01-30 1975-08-30 Петродворцовый Ордена Трудового Красного Знамени Часовой Завод Waterproof watch case

Also Published As

Publication number Publication date
JPS6038681A (en) 1985-02-28
EP0131266B1 (en) 1987-05-06
DE3463579D1 (en) 1987-06-11
CH651998GA3 (en) 1985-10-31
US4580907A (en) 1986-04-08
HK45291A (en) 1991-06-14

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