JULES F.U. JURGENSEN DETENT ESCAPEMENT YELLOW GOLD
Jules Jürgensen, Swiss, No. 227. Made circa 1870.
Very fine 18K yellow gold key-wound Chronometer pocket watch with detent
escapement.
Three-body, "bassine", polished, reeded band, hinged cuvette with aperture for
winding and hand setting
White enamel with black radial Roman numerals, outer minute track. Blued
steel Breguet hands.
Gilt, half-plate, jewels in gold screwed chatons, detent escapement with elongated
fork, cut bimetallic compensation balance, blued steel Breguet balance spring,
large index regulator.