Important Collectors Wristwatches, P...
Geneva, Nov 16, 2008
LOT 331
American Digital Perpetual Calendar Patek Philippe,Genève,movementNo. 861096, caseNo. 316531, Ref. 844.Made in 1987 and sold on January 31st, 1990. Very fine and very rare, 18K yellow gold, keyless, astronomical, minute repeating, dress watch with digital "American" perpetual calendar and moon phases. Accompanied by the Extract from the Archives, a push pin and leather pouch.
CHF 100,000 - 150,000
USD 90,000 - 140,000 / EUR 65,000 - 95,000
C. Three-body, "variée carrure plate", polished and brushed. D. Matte silver with applied yellow gold baton indexes, outer minute divisions, aperture for the days of the week, the months and the date, subsidiary seconds with moon phase aperture. Yellow gold "dauphine" hands. M. 17???, rhodium-plated, "fausses côtes" decoration, 29 jewels, counterpoised straight-line lever escapement, mono-metallic balance adjusted to heat, cold, isochronism and five positions, self compensating Breguet balance spring with swan-neck micrometer regulator, repeating on gongs activated by a slide in the band. Dial, case and movement signed. Diam. 51 mm.
| Grading System | |
|---|---|
Grade: |
|
Case: 2 |
Very good |
Movement: 2* |
Very good Overhaul recommended, at buyer's expense |
Dial: 2-01 |
Very good HANDS Original |
Notes
The American Perpetual Calendar The linear digital calendar or so-called ?American calendar? is a calendar in which the date is displayed in a single linear aperture allowing for a clearly legible dial which could be read at a glance. This type of display was invented in the early Art Deco period and is most often found in watches destined for the Anglo- American market. This kind of calendar became popular once again after the second World War.