Breguet

• cal. 569 manual winding gray anthracite coated steel movement, one-minute tourbillon with lever escapement, silicon balance spring, chain and fusee transmission • semi-skeletonized dial, eccentric silvered guilloché hour display, Roman numerals • platinum case, milled coin edge band, snap-on sapphire crystal display back • case, dial and movement signed • with a platinum Breguet folding clasp

Manual winding movement running and tourbillon function in working order while cataloguing. Dial looks nice and clean. Case and buckle with light signs of wear only. A few minor hairlines to the lugs. Overall appears in very good condition. Collectible! 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."

With a Breguet certificate, an instruction manual and a presentation box. 

The Breguet La Tradition grand complication with 50 hour fusee power reserve, one minute tourbillon with titanium bridge and silicon overcoil hairspring is a recent masterpiece created by the Breguet workshops. Each separate complication requires remarkable skill and patience to manufacture.

The fusee chain is a traditional technique that has been used in pocket watches since the 19th century.  The conical shape fusee barrel is wrapped with a miniature chain when the watch is wound; the conical shape then creates a constant and smooth power output from the barrel when the energy is released. By making the movement capable of running for 50 hours and regulating the torque, Breguet’s master watchmakers have managed to successfully modernize this traditional skill.

The famous Breguet overcoil hairspring has also been updated by creating it in Silicon.  As Silicon is devoid of the malleability of metal, it required a complete rethinking of the production process to form a bend rising up from the coil and created a technical challenge which was brilliantly mastered by Breguet technicians eventually.

To incorporate modern technique and materials into a traditional design the tourbillon upper carriage has been created in titanium and the sapphire crystal heavily domed to offer 21st century protection against damage while offering a 19th century aesthetic.