• cal. 380 manual winding nickel lever movement, 49 jewels, mono-metallic balance, two independent mainspring barrels for chronograph and time • silvered eccentric dial, applied Arabic quarter numerals, white gold center seconds hand, blued steel hand chronograph hand, subsidiary dial for 60-minute and 12-hour register, fan-form aperture for chronograph minute register, independent power reserve indication for time (silver) and chronograph (blued steel), subsidiary dial for 1/6th flying seconds • platinum case, sapphire reverse, single chronograph pusher in the band • case, dial and movement signed • with an 18k white gold Jaeger-LeCoultre double folding buckle

From a private collector. In excellent overall visual condition with little to no sign of use. The case has a very minor surface scratch on the outer edge of the lower right shoulder and pin-prick mark to the edge and outer of upper left shoulder. The movement has an intermittent fault found in the duometre model, the two center seconds hands seem to be touching as the main seconds hand does not always run independently and the watch stops. When the chronograph seconds hand is running the time-only seconds also runs. The watch can either be worn with the chronograph always running or, ideally, taken to Jaeger Le-Coultre to be corrected. **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."

Developed by JLC to utilize two mainsprings, the duometre was designed to prevent any potential loss of power from the principle mainspring when the chronograph is running. On conventional movements when the chronograph is initiated the additional gears used draw extra power from the mainspring and can adversely affect the timekeeping of the watch. By using a separate power source, the chronograph could be run continuously or at will without affecting the performance of the timekeeping.