Importantes Montres de Collection

Geneva, Nov 13, 2011

LOT 560

JÜRGENSEN HUNTING CASED LEVER CHRONOMETER Jules Jürgensen, Swiss, No. 15102. Made circa 1890. Very fine, large and heavy, 18K gold, hunting cased, keyless pocket lever chronometer with Jûrgensen?s patent bow hand setting, patented in 1867. Accompanied by the original numbered fitted wooden box, spare crystals, rating certificate and instructions for setting the hands.

C. Four-body, massive, "bassine et fi lets", polished, the front cover engraved with a monogram, Jürgensen's patented bow hand setting. Hinged gold-rimmed glazed cuvette. D. White enamel with radial Roman numerals, outer minute track, subsidiary seconds. Blued steel Breguet hands. M. 18???, rhodium plated, 17 jewels, the visible jewels in screwed gold chatons, counterpoised straight-line lever escapement with elongated fork, large diameter cut bimetallic compensation balance, blued steel Breguet balance spring with terminal curve, large index regulator with engraved scale on the center bridge. Dial, case and movement signed. Diam. 52.5 mm.