JACQUES-FRÉDÉRIC HOURIET MADE FOR BERTHOUD FRÈRES, NO. 96. A HIGHLY IMPORTANT EXTREMELY RARE AND LARGE 18K PINK GOLD HIGH-PRECISION ONE-MINUTE TOURBILLON WATCH WITH SPRING DETENT CHRONOMETER ESCAPEMENT, SPHERICAL BALANCE SPRING, REGULATOR DIAL AND RÉ...

Lot №: 26053
Estimate: $55,810 - 89,296
13 November 2017
Sold price
$415,784
Geneva

Description

Jacques-Frédéric Houriet made for Berthoud Frères, No. 96. A highly important extremely rare and large 18K pink gold high-precision one-minute tourbillon watch with spring detent chronometer escapement, spherical balance spring, regulator dial and Réaumur thermometerSigned F. Berthoud, no. 96, “Chronomètre Echappement Libre à Ressort Spiral, Sphérique Isochrone Levée, Dégagement, Repos et Dix Trous en Rubis Régulateur à Tourbillon“, circa 1830Movement: manual, 10 jewels, shaped plates, chain fusée, polished steel one-minute tourbillon regulator, footed spring detent escapement, cut bimetallic compensation balance with wedge-shaped temperature adjustment weights and meantime adjustment screws, free-sprung spherical balance spring, bimetallic strip for the thermometer on the dial plate, punched FH 96 on the dial plateDial: white enamel regulator-type, symmetrical hours and seconds dials, outer minutes track, sector for the Réaumur thermometerCase: four-body, engine-turned grains d’orge, stop-slide beneath the bezel, hinged gold cuvette signed and engraved with the technical details, 62 mm. diam. With: later mahogany brass-inlaid deck box and key