Important Modern & Vintage Timepieces

Geneva, May 10, 2025

LOT 401

VACHERON CONSTANTIN, SWITZERLAND, CHRONOMETRE, ''ÉPREUVES DE PREMIERE CLASSE'', GUILLAUME BALANCE, 18K YELLOW GOLD

CHF 2,000 - 6,000

HKD 19,000 - 57,000 / USD 2,500 - 7,400 / EUR 2,200 - 6,500

Sold: CHF 5,250

A very fine, 18k gold hunting-cased keyless pocket chronometer with enamel dial, gold spade hands, guillaume balance


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Grading System
Grade: AA

Very good

Case: 3-8

Good

Slightly scratched

Movement: 3-6*

Good

Slightly oxidized

Overhaul recommended, at buyer's expense

Dial: 3-01

Good

HANDS Original

Brand Vacheron Constantin, Switzerland

Model chronometre, ''épreuves de premiere classe''

Year Circa 1909

Movement No. 345949

Case No. 213324

Diameter 57 mm.

Caliber 20''', 21 jewels, lever escapement, brass-Invar Guillaume balance, index regulator with patented swan-neck spring and micrometric screw, eight adjustments

Weight 136 gr.

Signature Dial, case and movement

Accessories Bulletin de marche de ''l'Observatoire de Geneve'' from 12 January 1910

Notes

the back engraved with monogram (slightly worn)