Dial: silvered guilloché Caliber: cal. 502 automatic movement, 38 jewelsCase: 18k yellow gold, solid snap on case backCase number: No. 3318 DClosure: 18k yellow gold buckle Size: diameter 36.5 mmSigned: case, dial and movementAccessories: Breguet presentation box with outer packaging, Certificate of Origin, leather bi fold, instructional papers and booklet

CASE Please note that the buckle is not signed Breguet. Case in overall excellent condition with shop wear. Protective sticker is still applied to the case back. 18k gold chain with key is attached to the upper lug bar. The watch is offered in overall exceptional condition and likely unworn. DIAL Dial in excellent condition. MOVEMENT Calendar phasing properly. Power reserve indication operating. Equation of time not tested. The movement is running at time of cataloging, however it was not tested for the accuracy of time or duration of the power reserve and may need service at the buyer's discretion. Please note that Sotheby's does not guarantee the future working of the movement. ***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 international 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."

The present model features the rare equation of time complication. This function measures the amount of time by which the mean time, or time told by a clock, is ahead or behind apparent time, or time told by a sundial. Apparent, or true, time takes into account the Earth's changing angle with respect to the Sun so that some days are slightly longer than 24 hours and some are slightly shorter. The combination of this feature with perpetual calendar in Ref. 3470 is the result of Breguet's 1991 patent of a perpetual calendar movement with equation of time.

An example of Ref. 3470 is illustrated in Breguet, E., Breguet: Watchmakers since 1775, p. 175.