23,000 CHF
Ulysse Nardin, Locle, Suisse, No. 26165, finished in March 1938, sold in October 1938.Extremely fine and unique silver dead center-seconds keyless deck watch with one-second constant force escapement, accompanied by a certificate. Four-body, "bassine et filets", polished, soild, silver hinged cuvette. White enamel, bold radial Roman numerals, outer minute ring, subsidiary sunk seconds. Notes The watch employs a very simple and rare constant force mechanism allowing the subsidiary seconds hand to jump every second, simultaneously winding the escape wheel. Although it utilizes the same concept that Patek Philippe used in their dead second watches with "foudroyante" (see lot No. 67 in Antiquorum's catalogue "A Tribute to Precision and Complicated Timepieces", November 11, 2001), Nardin modified the system considerably to consolidate it with the constant force escapement, consisting ofn escape wheel mounted loosely on the escape wheel pinion, wound by a small hairspring-like spring and released by a pivoted lever controlled by a cam mounted on the escape wheel arbor.
Auctioneer:
Antiquorum
Date:
2001-11-11
