Important Collectors Watches, Pocket ...
Hong Kong, Jun 08, 2008
LOT 145
Watch with 11 Complications Ed. Koehn, Sucr. De H.R. Ekegren, Genève, No. 78067. Made circa 1900. Very fine and extremely rare, large, two-train, trip minuterepeating, grande and petite sonnerie striking, 18K yellow gold keyless clockwatch with perpetual calendar, moon phases and lunar calendar.
HKD 330,000 - 400,000
USD 43,000 - 52,000 / EUR 2,600 - 3,200
Sold: HKD 420,000
C. Four-body, ?bassine?, polished, correctors in the band. Hinged gold cuvette. D. White enamel with black radial Roman numerals, outer minute track, subsidiary dials for the months and four-year cycle, the date, days of the week, seconds combined with lunar calendar (in red), aperture for the phases of the moon. Black pear hands. M. 20???, frosted gilt, 33 jewels, two-trains with twin barrels and differential winding, counterpoised straight-line lever escapement, cut bimetallic compensation balance with gold temperature and platinum meantime adjustment screws, blued steel Breguet balance spring with overcoil, swan-neck micrometer regulator, striking and repeating on gongs by means of a trip slide on the band, sonnerie/silence and petite sonnerie/grande sonnerie selection levers under the bezel. Movement signed. Diam. 58 mm.
| Grading System | |
|---|---|
Grade: AAA |
Excellent |
Case: 3 |
Good |
Movement: 3 |
Good |
Dial: 2-01 |
Very good HANDS Original |
Notes
Was the son of Karl Koehn, a watchmaker to the court of the Grand Duchy of Saxe-Weimar-Eisenach. He came to Geneva in 1859, and studied at the Ecole d?Horlogerie. In 1861, he began working at Patek Philippe, as a mere employee. After 15 years of loyal service, he became Director. In 1891, Edward Koehn left Patek and bought the Robert Ekegren firm. Koehn constructed very high quality flat and extra-flat watches, repeating watches, chronographs, and fly-back chronographs. The firm, at the Grand Quai, made watches for Tiffany, New York, and on June 8, 1912, patented a watch with hanging barrel and pendant winding, as well as the ?Roseau?, under the No. 31470; and the ?Thermindex? on February 13, 1922 under the No. 51304.
The Complications: Minute-repeating Grande Sonnerie Petite Sonnerie Strike/silent Twin barrel differential winding Perpetual calendar Date Days of the week Months Four-year cycle Moon phase and age