Antiquorum Auctioneers since 1974

Geneva, November 8th-9th, 2025

Geneva, Nov 07, 2026

LOT 8

TECHNICUM CANTONAL BIENNE, SWITZERLAND, “PIÈCE ÉCOLE”, WITH SWAN-NECK SPRING AND MICROMETRIC SCREW, STAINLESS STEEL

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 and rare, stainless steel, manual wind Open-face, keyless-winding pocket watch. Two-tone silvered dial with applied Breguet numerals, outer minute track and subsidiary seconds at 6 o’clock. Gold Breguet hands. Case back decorated with a relief depiction of the Technicum Cantonal de Bienne.

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Grading System
Grade: AA

Very good
Case: 3-6

Good

Slightly oxidized
Movement: 3*

Good

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

Good

HANDS Original

Brand Technicum Cantonal Bienne, Switzerland

Model “PIÈCE ÉCOLE”

Year 1930

Movement No. 2334

Caliber 42 mm., gilt-brass movement, 17 jewels, going barrel, straight-line lever escapement, cut bimetallic compensation balance with gold poising screws, blued steel hairspring with terminal curve, and polished steel index regulator with swan-neck spring and micrometer screw

Diameter 51 mm.

Signature Dial and movement with the initials TBC