The Mondani Collection of Rolex Wrist...

Geneva, May 14, 2006

LOT 717

1/5 th Seconds Foudroyante? Poitevin Fabricant, No. 15986. Made for Tiffany & Co., New York, circa 1880. Very fine and unusual, hunting-cased, keyless, 18K yellow gold pocket watch with double train and independent center- seconds with 1/5 seconds foudroyante and stop feature.

C. Four-body, "bassine et filets", engine-turned covers, reeded band. Hinged gold cuvette. D. White enamel with radial Roman numerals, outer minute track and outermost 1/5th seconds track with Arabic five second numerals, subsidiary dial for the 1/5 seconds ?diablotine?. Blued steel "Breguet" hands. M. Cal. 20''', maillechort, "fausses-côtes" decoration, double train with differential winding and gold wheel train, 32 jewels, straight line counterpoised and calibrated lever escapement, cut bimetallic compensation balance, blued steel Breguet balance spring, index regulator, independent train with push button on the band to stop the center-seconds and ?diablotine? hands. Cuvette and movement signed. Diam. 54 mm.