Important Collectors’ Wristwatches an...

Hôtel Plaza Athénée - Le Trianon, Sep 28, 2005

LOT 42

?Equation of Time? Breguet,?Equation of Time, Perpetual Calendar?, Automatic, No. 8522, Ref 3477. Made circa 2000. Very fine and rare, skeletonized, self-winding, platinum gentleman's wristwatch with equation of time, perpetual calendar, 45-hour power-reserve and a platinum Breguet deployant clasp. Accompanied by a fitted winding box and certificate.

USD 70,000 - 90,000

EUR 55,000 - 75,000

C. Three-body, solid, polished, ridged band, gold screwed bars, sapphire crystals. D. Two-tone "guilloché" silvered gold with painted radial Roman numerals on an outer plain reserve, subsidiary sectors for the equation of time and the up-and-down indication, subsidiary ring dials for the days of the month, the months and the leap year, aperture for the days of the week at 12, secret Breguet signature. Blued steel "Breguet" hands. M. Cal. 502 QPET, rhodium-plated, hand-engraved and skeletonized, 38 jewels, straight line lever escapement, monometallic balance, shock-absorber, self-compensating flat balance-spring, off-center rotor. Dial, case and movement signed. Diam. 36 mm. Thickness 8 mm.


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Grading System
Grade:
Case: 2

Very good
Movement: 2

Very good
Dial: 1-01

As new

HANDS Original

Notes

What is a Perpetual Calendar? 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.