Important Modern & Vintage Timepieces.
Geneva, Mar 21, 2020
LOT 14
VACHERON CONSTANTIN, POCKET CHRONOMETER, YELLOW GOLD.
CHF 4,000 - 6,000
USD 5,200 - 7,250 / HKD 40,000 - 56,000
Very fine and rare, in 18K yellow gold, open-face, keyless-winding, roundshaped, pocket chronometer with subsidiary seconds at 6. Movement based on the Swiss invention patent No. 31 052, delivered on May 24, 1904, to George Marin Grandjean, Genève (former Director of the Ancienne fabrique Vacheron et Constantin, Société Anonyme), for a “Dispositif perfectionné pour la manoeuvre de la raquette.” (Improved device for the manoeuvring of a regulator). The Extract from the Archives, dated November 10, 1994, mentioned that this movement was made in 1919 and sold in 1920. The movement was completed in 1919 and delivered on April 12, 1920, to Shreve & Co., New York (U.S.A.).
| Grading System | |
|---|---|
Grade: AAA |
Excellent |
Case: 3 |
Good |
Movement: 3* |
Good Overhaul recommended, at buyer's expense |
Dial: 3-01 |
Good HANDS Original |
Brand Vacheron Constantin, Geneva
Year Circa 1919
Numbers 18769 ( Probably by an American case-maker)
Caliber RA 17''', lever escapement, brass-Invar Guillaume balance, index regulator with patented swan-neck spring and micrometric screw, eight adjustments, no. 386090
Dimensions 45 mm.
Signature dial, case and movement
Accessories Extract from the Archives, copy of the invention patent.