Important Modern & Vintage Timepieces

Geneva, Nov 13, 2016

LOT 47

"DUAL-TIME-ZONE & THERMOMETER" COURVOISIER FRÈRES GOLD Chaux de Fonds, Switzerland, No. 1912. Made for the Turkish market, circa 1900. Fine and very rare, hunting-cased, 18K gold, independently adjustable two time- zone keyless pocket watch with Réaumur thermometer,day of the week,date and independent center-seconds.

Four-body, "bassine", solid, polished, gold hinged cuvette. White enamel, two meantime dials, the first with radial Roman numerals, the second with Islamic numerals, White enamel, two subsidiary dials for days of the week and months (in Arabic),blue steel spade hamds and blue steel fleur-de-lis hands for the dual time, thermometer sector at 6 in Réaumur centigrade., 45mm. rhodium plated, 33 jewels, two-train, straight-line lever escapement, cut bimetallic compensation balance, blued steel Breguet balance spring, index regulator. Case signed, case numbered.