Important Modern & Vintage Timepieces

Geneva, May 15, 2016

LOT 253

ANDRE BORNAND LARGE ONE-MINUTE TOURBILLON THERMOMETER Andre Bornand, Geneve, No. 20656. Made circa 1967. Extremely fine, rare and important gilt open-faced keyless pocket Chronometer with one minute tourbillon regulator and thermometer.

CHF 30,000 - 60,000

HKD 240,000 - 480,000 / USD 31,000 - 63,000

TO BE SOLD WITHOUT RESERVE

Sold: CHF 27,500

Three body, massive, "bassine et filets", glazed cover for the movement. Silver with black roman numerals on a plain reserve, hand engraved center, outer minute track, sunk subsidiary seconds, thermometer indication at 12.. Blued-steel Breguet hands. Rhodium plated with "fausses côtes" decoration, 15 jewels, movement stamped twice with the Geneva hallmark, two armed cut bimetallic balance with gold poising screws, blued steel balance spring with terminal curve and arc limiting pin, polished steel tourbillon carriage, driven by the minute wheel.


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Grading System
Grade:
Case: 2-8

Very good

Slightly scratched

Movement: 2*

Very good

Overhaul recommended, at buyer's expense

Dial: 2-01

Very good

HANDS Original

Notes

DIAM. 60 mm. THICKNESS 18 mm. To be sold without reserve