28,800 CHF
Pin Wheel Escapement, Quarter-Repeat & Independent Dead Center-Seconds Charles Le Roy, H. ger de S.A.I. Madame (Son Altesse Impériale Madame), No. 772. Made circa 1805. Extremely fine and equally rare, three-train, quarter-repeating, 18K gold pocket watch with pin-wheel escapement and Pouzait-type independent dead center-seconds. Four-body, “forme collier”, polished, reeded band, bolt at 1 for locking the repeating and at 3 for the start/stop of the center-seconds. Hinged gold cuvette. hite enamel with Breguet numerals, outer seconds track with gold painted five-second divisions and Arabic numerals. Gold Breguet hour and minute hands and blued steel seconds hand. 44 mm., matte gilt, “calibre à ponts de Lépine”, standing barrel for the going train, fixed barrel for the independent seconds train, pin-wheel escapement with polished steel escape wheel set with fifteen gold perpendicular pins, polished steel anchor and fork acting on a ruby impulse roller, gold three-arm balance with pare-chute on the top pivot, blued steel flat balance spring, bimetallic temperature compensation curb on the blued steel index regulator, Pouzait-type dead center-seconds mechanism, all-or-nothing chain-wound repeating mechanism repeating on rectangular-section gongs activated by depressing the pendant. Dial and cuvette signed. Diam. 55 mm. Notes Here Le Roy used the pin-wheel escapement very rarely found in a watch, along withmajor horological advances of the day: the Lépine calibre à ponts, Po
Auctioneer:
Antiquorum
Date:
2008-11-16
