Antiquorum Auctioneers since 1974

Geneva, November 8th-9th, 2025

Geneva, Nov 07, 2026

LOT 2

ECOLE D'HORLOGERIE DE SAINT IMIER, SWITZERLAND, “PIÈCE ÉCOLE”, WITH SWAN-NECK SPRING AND MICROMETRIC SCREW, SILVER

CHF 2,000 - 4,000

HKD 19,100 - 38,200 / USD 2,500 - 4,900 / EUR 2,200 - 4,400 / JPY 384,000 - 770,000

TO BE SOLD WITHOUT RESERVE

A fine, silver, manual wind open-face, keyless-winding pocket watch with white enamel dial, subsidiary seconds at 6 o’clock and blued steel Breguet hands. Accompanied by a watchmaker’s sizing tool from the École d’Horlogerie de Saint-Imier, housed in a wooden box.


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Grading System
Grade: A

Good

Case: 3-6-8

Good

Slightly oxidized

Slightly scratched

Movement: 3*

Good

Overhaul recommended, at buyer's expense

Dial: 3-01

Good

HANDS Original

Brand Ecole d'horlogerie de Saint Imier, Switzerland

Year Circa 1920-30

Movement No. R.1.928I.

Case No. 1927

Caliber 41 mm., 19 jewels, rhodium-plated movement with fausses côtes decoration, going barrel, straight-line lever escapement, cut bimetallic compensated balance with gold poising screws and blued steel hairspring with terminal curve, polished steel index regulator with swan-neck spring and micrometric screw.

Diameter 50 mm.