The Longitude at the Eve of the Third...

Geneva, Hotel Des Bergues, Oct 23, 1999

LOT 299

G. Billian Fils, Zürich, Swiss, circa 1890.Very fine 18K gold, moon phase, astronomical, keyless minute repeating watch with chronograph and perpetual calendar, in original leather fitted box.

C. Four body, massive, "bassine", polished, the back engraved with the Arms of Argentina. Hinged gold cuvette. D. White enamel with Arabic numerals outer Arabic minutes and chronograph ring, sunk subsidiary dials for the days of the week, the months of the leap-year cycle, the dates and the subsidiary seconds with inner moon phase aperture. Gold "spade" hands. M. 20''', nickel plated, "fausses côtes" decoration, 31 jewels, counterpoised straight line lever escapement, cut bimetallic balance, Breuet balance spring. Repeating on gongs with slide in the band. Chronograph with visible work and button in the band.Signed on the cuvette.Diam. 56 mm.