• cal. 31-260 automatic lever movement stamped with PP seal, 29 jewels, Silinvar Spiromax balance spring, Pulsomax escapement, gold micro rotor • grey satin finished dial in regulator style, 3 apertures for day, date and month, central blued minute hand, 2 subsidiary dials indicating hour with Arabic numerals and constant seconds • 18k white gold case, snap-on sapphire crystal display back • case, dial and movement signed • with an 18k white gold Patek Philippe buckle

Automatic movement and calendar function in working order when cataloguing. Dial is very nice and clean, in excellent condition. Case with very light surface scuff to the bezel near 11o'clock, barely visible under a powerful loupe, very minor hairlines towards the back of two lugs. Crisp hallmarks. Buckle with minimal signs of use. Overall in excellent condition. Please note that the movement has not been tested for the accuracy of time keeping and a service might be required at the buyer's expense. **The strap of this wristwatch is made from an endangered species, please refer to important notices for further information**.
"In response to your inquiry, we are pleased to provide you with a general report of the condition of the property described above. All dimensions in catalogue descriptions are approximate. Condition reports may not specify mechanical replacements or imperfections to the movement, case, dial, pendulum, separate base(s) or dome. Watches in water-resistant cases have been opened to examine movements but no warranties are made that the watches are currently water-resistant. Please note that we do not guarantee the authenticity of any individual component parts, such as wheels, hands, crowns, crystals, screws, bracelets and leather bands, since subsequent repairs and restoration work may have resulted in the replacement of original parts. Since we are not professional conservators or restorers, we urge you to consult with a restorer or conservator of your choice who will be better able to provide a detailed, professional report. Prospective buyers should inspect each lot to satisfy themselves as to condition and must understand that any statement made by Sotheby's is merely a subjective, qualified opinion. Prospective buyers should also refer to any Important Notices regarding this sale, which are printed in the Sale Catalogue. In particular, please note it is the purchaser's responsibility to comply with any applicable import and export matters, particularly in relation to lots incorporating materials from endangered species.NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING A LOT, ALL LOTS ARE OFFERED AND SOLD AS IS" IN ACCORDANCE WITH THE CONDITIONS OF BUSINESS PRINTED IN THE SALE CATALOGUE."

**Please be advised that bands made of materials derived from endangered or otherwise protected species (i.e. alligator and crocodile) are not sold with the watches and are for display purposes only. We reserve the right to remove these bands prior to shipping.

Important Notice regarding importation into the United States of Rolex watches
Sotheby's cannot arrange for the delivery of Rolex watches to the United States because U.S. laws restricts the import of Rolex watches. The buyer or a designated agent may collect the property in the country of sale."

With a Patek Philippe Certificate of Origin, setting pin and presentation box.

Presented by Thierry Stern at his second year anniver♏sary as president of Patek Philippe, Ref. 5235 is the brand’s very first annual calendar regulator wristwatch.  Powered by the new in-house made caliber 31-260 REG QA, the base movement architecture has been around since the late 1970s, but has been thoroughly built upon. Reading the name of the movement we can see "REG" which means regulator, and "QA" which means "quantieme annual," or "annual calendar." The 260 series movements are automatic with micro-rotors and power reserve up to 60 hours. Consisting of a central minute hand, a subsidiary seconds dial (at 6 o'clock) and a subsidiary hour hand at 12 o'clock, the regulator dial is remarkably modern and legible. According to Thierry Stern in his interview: “I designed it to be more aggressive, less sober than other Pateks, but still in a very classical, clean way.  It's more up to date, I think it's a modern adaptation of the traditional regulator.  I wanted to use colors (the strap and hands are both blue) and I think we created something out of the ordinary.”