Urban Jürgensen & Sønner Copenhagen/Derek Pratt

• Cal. Frédéric Piguet 71, automatic lever movement, 35 jewels • silvered guilloché dial, satin finished chapter ring with Roman numerals, apertures for day, month and moon-phases, subsidiary dial for date, fan-form sector for power reserve indication, yellow gold hands • platinum case, stepped bezel, snap-on back • dial, case and movement signed • with an 18k white gold Urban Jürgensen buckle

The movement is running at time of cataloguing. The dial and hands are in excellent condition. The case has very minor surface scratches as it appears that the watch was rarely used. Overall, the watch is in excellent condition. The watch has not been tested to determine the accuracy of its timekeeping. Please note that Sotheby's does not guarantee the future working of the movement and that a service may be required at the buyer's discretion. ***Please be advised that the bands on this watch are made of materials derived from endangered or otherwise protected species (i.e. alligator and crocodile) and thus not sold with the watch, they are for display purposes only. We will remove these bands prior to shipping.***
"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."

Accompanied by John M.R. Knudsen, The Jürgensen Dynasty, 2013 and a copy of the catalogue c. 1992 showing the first presentation of reference 3

One of the most visually arresting perpetual calendar wristwatches of the 20^th century, the Ref. 3 was made in a limited edition of 100 pieces in either yellow, pink gold or platinum. Introduced towards the end of 1992, as the natural successor to the reference 2, the Ref. 3’s difference is found in the state of wind indicator. Amazingly, Urban Jürgensen & Sønner incorporated this additional complication without increasing the thickness of the already thin movement which has a thickness of just 2.4mm. This miniaturized mechanism, together with some three dozen parts was developed by Derek Pratt – each steel surface is carefully grained and the edges angled and polished to perfection.  For further information on Ref. 3 see, Knudsen, J.,The Jürgensen Dynasty, p.328 and Treffry, T., Derek Pratt Watchmaker FBHI, British Horological Institute, 2012, pp. 30-31

The harmonious and elegant appearance of the silver dial is complimented by the typical Urban Jürgensen & Sønner diamond-finished gold hands, which require many hours of hand work to finish them to perfection; the moon display alone requires over twenty operations to produce the blued steel background, with inserted gold moon discs and the stars punched in one by one.