Importantes Montres de Collection
Geneva, Nov 13, 2011
BERTHOUD PRECISION LEVER CHRONOMETER Auguste Louis Berthoud, No. 19. Made circa 1860. Extremely fine and very rare, large and heavy, 18K rose gold pocket lever chronometer with fusee and helical balance spring.
C. Four-body, bassine, mastermark JG, polished, the back engraved with a foliate monogram, olive-shaped pendant. Hinged gold cuvette engraved ?César Jolly, Argenteuil, 1866?. D. White enamel by Droz, radial Roman numerals, outer minute track, subsidiary seconds. Blued steel Breguet hands. M. 50 mm., matte gilt, half-plate, fusee and chain, maintaining power on the fusee, 12 jewels, counterpoised and calibrated straight-line lever escapement, cut bimetallic compensation balance with gold temperature and meantime adjustment screws, blued steel helical balance spring with inner and outer terminal curves, index regulator, winding with female arbor. Dial and movement signed, dial signed on the counter-enamel ?Droz?. Diam. 58 mm.
Grading System | |
---|---|
Grade: AAA |
Excellent |
Case: 2 |
Very good |
Movement: 2* |
Very good Overhaul recommended, at buyer's expense |
Dial: 2-01 |
Very good HANDS Original |