Dial: silveredCalibre: cal. P478/BWSbr mechanical, 17 jewelsMovement number: 1'331'844Case: 18k yellow gold, screw-down case backCase number: 775'608Closure: blue unsigned alligator strap and gilt buckleSize: 35 mm diameterSigned: case, dial and movementAccessories: Jaeger-LeCoultre Extract from the Archives confirming the production of the present watch in 1959

The movement is in working condition at the time of cataloguing. The dial is original and in very attractive condition. The hands and lumes are later applied. The bezel with surface wear and tiny pinhead dings throughout. The lugs, particularly the lower two with minor surface scratches. The case back with minor surface wear toward the edges. Otherwise the case is very thick and has no signs of over polishing. Please note that the movement has not been tested for the accuracy of time and may need a service at the buyer's expense. Sotheby's does not guarantee the future working of the movement and we do not guarantee the authenticity of any individual component parts since subsequent repairs and restoration work may have resulted in the replacement of original parts. You are advised that watch straps or bands made of materials derived from endangered or otherwise protected species (i.e. alligator or crocodile) are not sold with the watch and we reserve the right to remove these straps or bands prior to shipping. Furthermore, the watch may not come with its original manufacturers strap or band. Prospective bidders should review the Conditions of Business, Authenticity Guarantee, the Guide for Prospective Buyers, and any Important Notice in the sale catalogue.
"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."

The Geophysic Chronometer by Jaeger-LeCoulre was made to celebrated the 125th anniversary of the manufacturer as well as mark the first Geophysical Year in 1958. It was an effort made to encourage scientific exploration and experimentation in the fields related to geophysics. Fitted with one of Jaeger-LeCoultre's most renowned chronometer movements available at the time, the watch was made to withstand the harshest climates one can possibly imagine.  With most examples available in the market cased in stainless steel, the present watch cased in yellow gold is a rare example. Furthermore, the case does not show heavy signs of polishing.