Movement: cal. 28-20/220 manual winding, 29 jewelsCase: 18k yellow gold, sapphire crystal display back secured by 4 screwsBracelet/Clasp/Buckle: 18k yellow gold Patek Philippe buckleDiameter: 34 mm widthSigned: case, dial and movement Accessories: Patek Philippe Extract from the Archives confirming production of the present watch with silvered grained dial, applied yellow gold Arabic numerals and indexes in 2000 and its subsequent sale on 20 November 2000

The movement is in working condition at the time of cataloguing. The dial is in excellent condition. The case is in very good condition with some very minor light scratches to the band. The buckle with signs of oxidization. Overall in very good condition with minor signs of wear. * Please note that the movement has not tested for the accuracy of time or duration of the power reserve 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."

Patek Philippe unveiled a limited edition series of 3,000 watches under the reference 5100 in 2000. 1,500 pieces were made in 18k yellow gold, 300 pieces in platinum, 450 pieces in 18k white gold and finally 750 in 18k pink gold. The reverse of the watch is engraved 'Year 2000' as it is a commemorative piece to celebrate the arrival of the new millennium in the year 2000. Reference 5100 is historically significant in the development of Patek Philippe complicated wristwatches. Incorporating dual main spring barrels, it is the first 10-day power reserve wristwatch ever made by the company.