Important Collectors Wristwatches, P...
Geneva, Mandarin Oriental Hotel Du Rhône, Oct 15, 2006
?One-Minute Tourbillon? Vacheron & Constantin, Genève, No. 418296, model No. 92245, case No. 586069, adjusted by E. Olivier and Brahier. Made in 1934, cased in gold in 1991. Extremely rare and important, 18K gold, keyless pocket watch with one minute tourbillon regulator and Guillaume balance, specially adjusted for the 1934 Geneva Observatory Contest obtaining first prize, also submitted for the Geneva Observatory contests of 1947 and 1960.
C. Three-body, "bassine", polished, with concealed hinge. Glazed gold-rimmed cuvette. D. White enamel with Arabic numerals, outer minute track, subsidiary seconds. Blued steel "Breguet" hands. M. 42 mm. (19'''), rhodium-plated, "fausses-côtes" decoration, 19 jewels, wolf?s tooth winding, one minute tourbillon regulator, the carriage with three polished steel equidistant arms and matted steel bridge, straight-line lever escapement, cut Guillaume anibal-brass compensation balance with gold temperature adjustment screws, blued steel Beguet balance spring, index regulator. Dial, case and movement signed. Diam. 56 mm.
Grading System | |
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Grade: |
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Case: 2 |
Very good |
Movement: 2 |
Very good |
Dial: 2-01 |
Very good HANDS Original |