Important Collectors Watches, Pocket ...
Geneva, May 10, 2009
LOT 190
Platinum Tourbillon Perpetual Calendar Breguet, "Tourbillon Perpetuel", No. 1933, Ref. 3755. Made circa 2005. Very fine and rare, large, platinum wristwatch with visible one-minute tourbillon regulator, perpetual calendar with retrograde date and a platinum Breguet deployant clasp. Accompanied by a Breguet fitted burr-walnut box, platinum setting pin and short chain, Certificate of Origin and instructions.
CHF 65,000 - 105,000
USD 57,000 - 92,000 / EUR 43,000 - 70,000
Sold: CHF 98,400
C. Three-body, solid, polished, coin-edge band, straight lugs with platinum screwed bars, transparent case back, sapphire crystals. D. Silver hand-guilloche with off-center brushed chapter ring with painted radial Roman numerals for the hours, dot minute divisions and the retrograde date at 12, brushed ring dials for the months at 3 and the days of the week at 9, leap year indication at 3, retrograde 30-seconds graduation at 6, aperture for the tourbillon cage with brushed steel bridge carrying a blued steel double-ended seconds hand at 6. Blued steel Breguet, arrow and serpentine hands. M. Cal. 558.1, rhodium-plated and hand-engraved, 21 jewels, lateral lever escapement with oneminute tourbillon regulator with three equidistant polished steel arms, monometallic balance adjusted to six positions, self-compensating Breguet balance spring. Dial, case and movement signed. Diam. 40 mm. Thickness 10.5 mm.
| Grading System | |
|---|---|
Grade: |
|
Case: 2 |
Very good |
Movement: 2 |
Very good |
Dial: 1-01 |
As new HANDS Original |
Notes
A perpetual calendar is a calendar mechanism which, unlike a simple calendar, automatically adjusts to the correct day of the month by accounting for the varying durations of each month, as well as self-correcting for the 29th of February during leap years. Audemars Piguet are said to have been the first to produce wristwatches with perpetual calendar and moon phases, in 1924. In 1925, Patek Philippe modified a lady?s pendant watch with perpetual calendar to produce the world?s first instantaneous changing perpetual calendar wristwatch with leap year indication.