Antiquorum Auctioneers since 1974

Geneva, May 10, 2026

LOT 381

VACHERON CONSTANTIN, SWITZERLAND, EHXIBITION MOVEMENT, FIRST CLASS GENEVA OBSERVATORY AND CLASS A AT TEDDINGTON OBSERVATORY, SILVER

CHF 8,000 - 16,000

HKD 80,000 - 160,000 / USD 10,200 - 20,300 / EUR 8,700 - 17,400 / JPY 1,620,000 - 3,230,000

Sold: CHF 10,625

A very fine, rare and large silver, manual wind open-face, keyless deck chronometer with 40-hour power reserve indication at 12 o'clock, Guillaume balance. Matte silver dial with painted Roman numerals, outer minute track, subsidiary seconds dial, blued steel "spade" hands.


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Grading System
Grade:
Case: 3-6

Good

Slightly oxidized
Movement: 3*

Good

Overhaul recommended, at buyer's expense
Dial: 3-6-01

Good

Slightly oxidized

HANDS Original

Brand Vacheron Constantin, Switzerland

Year Circa 1919

Movement No. 379509

Caliber 47 mm., 21 jewels, straight line calibrated lever escapement, anibal-brass Guillaume balance with ''winged'' arms, gold temperature adjustment screws and platinum mean time screws, special alloy Breguet balance spring with inner and outer terminal curves, diamond endstone, ''swan-neck'' micrometric regulator.

Diameter 64 mm.

Signature Dial and movement

Accessories copy of the Geneva Observatory timing Certificate and of the Teddington observatory