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Jean Lassale

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1.2 mm thin. Its frequency is 21,600 Alt/H, and its power reserve is 35 hours. It has 11 jewels. The calibre 1200 (and its automatic version 2000) were built from 1976 to 1979 in the factory that the company Bouchet-Lassale SA had built on 30, rue des Voisins in Geneva, Switzerland. The gold cases came from the « Ateliers rĂ©unis Â», a company also located in Geneva.
376:, with the goal of making the thinnest watch in the world. To achieve this feat, Mathys based his design on the work of Robert Annen, who previously had the idea of using ball bearings in small scale horology. Mathys decided to remove the bridges and counter-pivot, and instead use ball bearings for the axis. 448:
In Septembre 79, Bouchet-Lassale SA met some financial difficulties, and the production was stopped. In December of the same year, Claude Burkhalter, then the director of Lemania-Lugrin SA, declares during an internal meeting that « Omega has the possibility to buy the Jean Lassale brand Â».
445:, through Lemania-Lugrin SA, L’Orient, which were both units of the SSIH Group (Société Suisse pour l’Industrie Horlogère, which does not exist anymore today). So, Lemania–Lugrin SA built calibres 1200 and 2000, Omega owning a non-exclusive license for the production and the sale of those movements. 512:
Robert Annen was a Swiss engineer who filed about 75 patents linked to horology and aeronautics, but not only. Some on his own name, some under the names of companies like "ROULEMENTS A BILLES MINIATURES", "LOUIS MULLER ET CIE S A FABRIQUE", "PARECHOC SA  ; ROCHAT FRERES S A". For the company
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in April 1976. This mechanical, handwound movement has a diameter of 20.4 mm, and a thickness of 1.2 mm. There is an automatic version which is 2.08 mm thick). It holds 14 ball-bearings. Each one uses 0.20 mm balls. These ball-bearings are inserted in a platine which is
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The Jean Lassale SA company was excluded from the Swiss Chamber of Commerce on 10 April 2006, following the bankruptcy that was declared by the Tribunal de Première Instance dated 23 June 2003. The company's last CEO was Mr Hagiwara Yasunori.
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The patent for this watch movement was applied in Switzerland on 1976, February 18. It was then applied in the USA on January 2, 1979 under the code US4132061A. The Abstract of the patent is :
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An extra-thin manually or automatically wound watch movement in which at least one wheel is pivoted in an overhang position by means of a single-race miniaturized ball bearing.
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was a Swiss watch company that designed the Calibre 1200, featuring the thinnest mechanical watch movement: 1.2 mm. In the 1970s, Pierre Mathys, master watchmaker in
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Sealing Arrangement for an Extra-Flat Waterproof Watch Case. Filed on 10/11/1980. Designer : Pierre Goy. UK Patent GB 2 087 603 A. INT CL : G04B 37/11.
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Device for pivotally mounting the winding weight of a self-winding mechanism in movements for timepieces (for ROULEMENTS A BILLES MINIATURES), 25/05/1954
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The company Bouchet-Lassale was founded by Jean Bouchet-Lassale on October 8, 1976. The company won several awards for its watches:
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The calibre 1200, with its automatic version the Calibre 2000, were first presented at the Foire Internationale de l’Horlogerie in
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Ball bearing for winding rockers in self-winding watch and clock movements (for ROULEMENTS A BILLES MINIATURES), 17/08/1954
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Clasp for watch bracelet. Filled on 13/06/1983. Designer : Jean Bouchez. Swiss patent CH651729 (A5).
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http://rc.geneve.ch/rc/consultation/consultationcomplete.asp?no_dossier_fed=CH-660-0321976-3
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http://rc.geneve.ch/rc/consultation/consultationcomplete.asp?no_dossier_fed=CH-660-0321976-3
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Sealing device for antifriction bearings (for ROULEMENTS A BILLES MINIATURES), 15/08/1956
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At Vacheron, the Caliber 1200 is called 1160, and the automatic movement is called 1170.
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METHOD OF DRILLING HARD MATERIALS (for PARECHOC SA ; ROCHAT FRERES SA), 03/06/1969
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Ball bearing for rotor shafts (for ROULEMENTS A BILLES MINIATURES), 07/03/1939
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Salon International des Inventions et des techniques nouvelles; Genève 1976
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Oil-sealed shaft bearing (for ROULEMENTS A BILLES MINIATURES), 07/09/1954
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Gyroscope indicateur du nord géographique (on his own name), 30/06/1968
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Palier Ă  roulement (for ROULEMENTS A BILLES MINIATURES), 30/06/1956
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In 1978-79, a collaboration starts between Bouchet-Lassale SA and
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Médaille d'Or avec félicitations (Gold medal with congratulations)
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AIRCRAFT PILOTAGE CONTROL DEVICE (on his own name), 16/11/1943
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Ball bearing (for ROULEMENTS A BILLES MINIATURES), 09/11/1943
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BALL OR ROLLER BEARING (for LOUIS MULLER ET CIE), 30/06/1936
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ANNULAR BALL BEARING (for LOUIS MULLER ET CIE), 31/12/1935
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Calibre 2000 (Back, with automatic plate removed !)
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Jean Bouchet-Lassale, founder; Pierre Mathys, watchmaker
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Transformation from a wristwatch to a clock in progress
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The company Bouchet-Lassale filed some patents :
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Grand Prix du Jury pour les innovations industrielles
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Salon Mondial des Inventions; Bruxelles December 1976
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may be too technical for most readers to understand
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Köln, Germany: Könnemann. p. 454. 402:Prix de la Chambre Suisse de l'Horlogerie 270:Learn how and when to remove this message 252:Learn how and when to remove this message 150:Learn how and when to remove this message 134:, without removing the technical details. 977:Journal Suisse d'Horlogerie|1978|Page 79 957:Journal Suisse d'Horlogerie|1976|Page 74 945:Patent CA358852 - Ball or Roller Bearing 891:A list of patents filed by Pierre Mathys 1792:Manufacturing companies based in Geneva 1086:A list of patents filed by Robert Annen 865: 1812:Swiss companies disestablished in 2006 1759: 1070: 930:Patent CA355070 - Annular Ball Bearing 1444: 942: 927: 912: 787:Pictures of the Jean Lassale Calibers 132:make it understandable to non-experts 1741: 190:adding citations to reliable sources 161: 106: 59: 18: 1797:Swiss companies established in 1976 712:Yellow Gold; transparent case back. 486: 13: 997:Journal Suisse d'Horlogerie - 1976 379: 14: 1823: 1429: 1073:United States Patent US 4,132,061 508:Robert Annen and the ball bearing 34:This article has multiple issues. 1740: 1731: 1730: 829: 817: 805: 793: 777: 768: 756: 747: 735: 726: 717: 705: 693: 681: 672: 660: 648: 636: 624: 612: 600: 588: 576: 564: 558:Examples of Jean Lassale watches 399:Grand Prix de la ville de Genève 288: 166: 111: 64: 23: 1470: 1415:from the original on 2022-07-24 1401: 1390:from the original on 2022-07-24 1376: 1365:from the original on 2022-07-24 1351: 1340:from the original on 2022-07-24 1326: 1315:from the original on 2022-07-24 1301: 1290:from the original on 2022-07-24 1276: 1265:from the original on 2022-07-24 1251: 1240:from the original on 2022-07-24 1226: 1215:from the original on 2022-07-24 1201: 1190:from the original on 2022-07-24 1176: 1165:from the original on 2022-07-24 1151: 1140:from the original on 2022-07-24 1126: 1115:from the original on 2022-07-24 1101: 1079: 1064: 1000: 991: 848:List of defunct consumer brands 177:needs additional citations for 42:or discuss these issues on the 980: 971: 960: 951: 936: 921: 915:Patent CA350746 - Ball Bearing 906: 884: 859: 449:But Jean Lassale is bought by 1: 1767:Defunct watchmaking companies 853: 583:View of the back of the watch 943:Ammen, Robert (1936-06-30). 928:Ammen, Robert (1935-12-31). 631:The Jean Lassale table clock 319:1976 by Jean Bouchet-Lassale 7: 1006:Patent was applied in USA ( 841: 742:A Jean Lassale Quartz watch 77:to comply with Knowledge's 10: 1828: 418:MĂ©daille d'Or (Gold Medal) 1718: 1693: 1662: 1626: 1619: 1594: 1558: 1551: 1540: 1491: 1478: 866:Brunner, Gisbert (1999). 667:White Gold (calibre 1200) 355: 345: 331: 323: 315: 304: 296: 287: 1607:Seiko Sports Association 90:may contain suggestions. 75:may need to be rewritten 1777:Defunct consumer brands 1511:Seiko Epson Corporation 1499:Seiko Group Corporation 1436:Collection Jean Lassale 1075:. Espacenet. p. 1. 1071:Mathys, Pierre (1979). 1586:Spring Drive mechanism 1521:Orient Watch Co., Ltd. 1504:Seiko Instruments Inc. 1050:), in Great-Britain ( 947:. Louis Muller et Cie. 932:. Louis Muller et Cie. 917:. Louis Muller et Cie. 913:Ammen, Robert (1935). 607:Remove the bottom band 505: 1722:† Joint venture with 1030:Patent Ref JP52100261 1008:Patent Ref US4132061A 501: 1052:Patent Ref GB1573257 1041:Patent Ref IT1074808 1019:Patent Ref FR2341886 824:Calibre 2000 (Front) 800:Calibre 1200 (Front) 186:improve this article 1409:"Patent US2149492A" 1384:"Patent US2333970A" 1359:"Patent US2679440A" 1334:"Patent US2686397A" 1284:"Patent US2688521A" 1234:"Patent US3447528A" 812:Calibre 1200 (Back) 763:The quartz movement 619:Both bands removed. 463:Vacheron Constantin 284: 16:Swiss watch company 1772:Swiss watch brands 1680:Micro flying robot 1309:"Patent DE934379C" 1259:"Patent CH314736A" 1209:"Patent CH458766A" 1184:"Patent CA355070A" 1159:"Patent CA350746A" 1134:"Patent CA355070A" 1091:2022-07-24 at the 1057:2022-07-24 at the 1046:2022-07-24 at the 1035:2022-07-24 at the 1024:2022-07-24 at the 1013:2022-07-24 at the 896:2022-07-24 at the 282: 1754: 1753: 1714: 1713: 1615: 1614: 1528:Ohara Corporation 1109:"Patent CA358852" 370:La Chaux-de-Fonds 363: 362: 280: 279: 272: 262: 261: 254: 236: 160: 159: 152: 105: 104: 79:quality standards 57: 1819: 1744: 1743: 1734: 1733: 1627:Computer systems 1624: 1623: 1556: 1555: 1546: 1545: 1465: 1458: 1451: 1442: 1441: 1424: 1423: 1421: 1420: 1405: 1399: 1398: 1396: 1395: 1380: 1374: 1373: 1371: 1370: 1355: 1349: 1348: 1346: 1345: 1330: 1324: 1323: 1321: 1320: 1305: 1299: 1298: 1296: 1295: 1280: 1274: 1273: 1271: 1270: 1255: 1249: 1248: 1246: 1245: 1230: 1224: 1223: 1221: 1220: 1205: 1199: 1198: 1196: 1195: 1180: 1174: 1173: 1171: 1170: 1155: 1149: 1148: 1146: 1145: 1130: 1124: 1123: 1121: 1120: 1105: 1099: 1083: 1077: 1076: 1068: 1062: 1004: 998: 995: 989: 984: 978: 975: 969: 964: 958: 955: 949: 948: 940: 934: 933: 925: 919: 918: 910: 904: 888: 882: 881: 863: 833: 821: 809: 797: 781: 772: 760: 751: 739: 730: 721: 709: 697: 685: 676: 664: 652: 640: 628: 616: 604: 592: 580: 568: 487:The Calibre 1200 359:Prestige watches 292: 285: 281: 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