Jaeger-LeCoultre

• cal. 177 manual winding damascened nickel lever movement, 117 jewels, inclined one-minute multi-axis spherical tourbillon carriage, inner titanium escapement platform carrying the 14k gold balance wheel, inner platform rotating 5 times every 2 minutes along stationary wheel, steel reinforced tourbillon with jewelled suspension, cage pinion connecting to 3rd wheel with beveled teeth, two linear main-spring barrels with sapphire crystal covers, hands for month display and retrograde leap year indication • grey dial, black Arabic numerals, silvered chapter ring for mean and solar time display, the time difference calculating equation of time, sun-shaped hand for solar time indication, fan-form sectors for 8-days power reserve and retrograde month indication, two hands for retrograde date display beneath a frosted sapphire crystal, large aperture for multi-axis spherical tourbillon • platinum circular case, downturned lugs, sapphire crystal display back secured by 4 screws • case, dial and movement signed • with a platinum Jaeger-LeCoultre folding buckle       

Manual winding movement and tourbillon in working order, quick-set functions all functioning when cataloging. Dial is very clean and nice, spherical tourbillon is magnificent. Case and buckle has been slightly polished. Overall in excellent condition. Case numbered 73/75 and 149.6.07S. 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 Jaeger-LeCoultre certificate, instruction manual, magnifying glass and presentation box. 

The impressive Gyrotourbillon 1 by Jaeger-LeCoultre has carved its mark in the art of watchmaking - as the first spherical tourbillon the world has ever seen. Located at the heart of this horological marvel, is the Jaeger-LeCoultre Calibre 177, which displays the multi-axis spherical tourbillon, a running equation of time and a perpetual calendar equipped with four retrograde hands.  With 679 miniscule parts, the highly complex Gyrotourbillon classifies as a Grande Complication of the highest order.  This watch features a multi-axis spherical tourbillon employing cutting-edge materials and engineering to realize this horological tour-de-force.  The tourbillon carriage, crafted from aeronautical, high-performance aluminum, weighs only 0.035 grams.  The inner escapement platform consists of titanium and holds the 14k gold screw-set balance wheel, its weight perfectly optimized for oscillation. The equation of time is displayed by the difference between the solar minute hand and the normal minute hand.  Only four times a year will both hands coincide:  December 25th, April 15th, June 14th and September 2nd.  The perpetual calendar is indicated a patented double retrograde for date display.  One hand on the left indicates the dates 1 through 16, and a second hand on the right indicates the dates from 16 through 31.  Both hands rendezvous on the 16th of every month before retreating to their respective resting points.  The retrograde leap year indicator is visible on the reverse side of the watch, while the retrograde month hand elegantly mirrors the 8-days power reserve indicator on the front dial.