Important Collectors Wristwatches, P...
Hong Kong,the Ritz Carlton Hotel,harbour Room, 3rd Floor, Jun 02, 2007
LOT 200
?Pocket Chronometer? Will(ia)m Mottu, Geneve. Made for the English market, circa 1850. Fine and rare, 18K gold pocket chronometer with unusual banking for the detent.
HKD 25,000 - 35,000
USD 3,300 - 4,600 / EUR 2,500 - 3,500
Sold: HKD 29,500
C. Four-body, ?bassine et filet?, Mastermark ?PM?, engine-turned and polished. Hinged gold cuvette. D. White enamel with radial Roman numerals, outer minute track, subsidiary seconds. Blued steel ?spade? hands. M. 40 mm, 18???, frosted gilt, half-plate, fusee and chain with Harrison?s maintaining power, Earnshaw type chronometer escapement with spring footed detent, spring footed banking arm parallel to the detent, free-sprung cut bimetallic compensation balance with gold temperature and meantime adjustment screws, blued steel helical balance spring, diamond endstone. Dial and movement signed. Diam. 48 mm.
| Grading System | |
|---|---|
Grade: AA |
Very good |
Case: 3-15 |
Good Slightly rusted |
Movement: 3* |
Good Overhaul recommended, at buyer's expense |
Dial: 3-01 |
Good HANDS Original |
Notes
Ad. Mottu, 131 rue des Etuves. 1830 - 1831, was an eminent finisher and maker of balance- springs. At the Geneva Exposition in 1828 he presented a series of spherical balance-springs, and in 1829 he signed a petition for the construction of a new observatory. "Dictionnaire des Horlogers Genevois" by Osvaldo Patrizzi, Antiquorum Editions, Geneva, 1998.