Patek Philippe. A fine and rare 18ct rose gold perpetual calendar wristwatch with 18ct rose gold deployant clasp and Extract from Archives

Ref:3940, Case No.2981617, Movement No.776493, Made in 1997, Sold January 5th 1998
27-jewel Cal:240Q movement stamped with the Seal of Geneva quality mark, rhodium-plated, fausses cotes decoration, straight-line lever escapement, Gyromax balance adjusted to heat, cold, isochronism and 5 positions, shock absorber, self-compensating free-sprung flat balance spring, 22ct gold micro-rotor mounted on ball bearings, Matte silver dial with applied pink gold faceted baton and pyramidal indexes, outer dot minute divisions, subsidiary dials for the days of the month, the week, the 24 hours, the month and the leap year, aperture for the moon phases, pink gold dauphine hands, polished case with transparent case back, fitted Patek Philippe black leather strap with 18ct rose gold Patek Philippe deployant clasp, together with Extract from Archives, case, dial and movement signed. 35mm. Sold for £21,600

Footnote: Production of the reference 3940 started in 1985 and stopped in April 2007. It replaced References 3848 & 3850 and is among the most sought after Patek Philippe references by collectors and enthusiasts. A similar watch is published in "Patek Philippe Wristwatches", by Martin Huber and Alan Banbery, 1998 Edition, p. 292.

Bonnhams. Fine Watches and Wristwatches, 17 Dec 2008. New Bond Street. Copyright © 2002-2008 Bonhams 1793 Ltd., Images and Text All Rights Reserved. www.bonhams.com