Swiss nickel deck chronometer with regulator dial Circa 1930

Deck ankerchronometer by Vacheron & Constantin
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A Swiss deck chronometer with regulator dial and stoppable seconds, ‘Heure Exacte’, circa 1930. Original three part mahogany box with original key compartment, original key, nickel case with screwed bezel. Very fine and extremely rare ankerchronometer according to patent V & C 101652, calibre 67-124, Guillaume balance, special fine adjusting device. Silvered regulator dial with Arabic numerals and blued steel hands. Case numbered, movement signed and numbered, dial signed.
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Diameter: 82 mm
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Dimensions: 12 x 11 x 6 cm
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Signed: Vacheron & Constantin Genève Suisse
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These Vacheron & Constantin deck chronometers are extremely rare and belong to the most accurate deck chronometers. Some of the boxes had a label “Heure exact” in the lid, the “exact time”! Only very few of these watches are known today, among others the No. 250999 according to the archives sold 1929, auctioned in Geneva 2005 in the special auction “The Quarter Millennium of Vacheron & Constantin” for 13,800 Swiss Francs!