JULES JURGENSEN SMALL DETENT ESCAPEMENT PINK GOLD
Jules Jürgensen, Swiss, No. 12211. Made circa 1870.
Very fine 18K pink gold keyless pocket watch with Jûrgensen's patent bow hand
setting, patented in 1867. Accompanied by a copy of the Jurgensen archive.
Three-body, "bassine", polished, Jürgensen's patented bow hand setting,
glazed cover for the movement
White enamel with black radial Roman numerals, outer minute track. Blued
steel Breguet hands.
14''', 15 jewels, straight-line lever escapement with elongated fork, cut bimetallic
compensation balance, blued steel Breguet balance spring, large index
regulator with engraved scale on the center bridge.