• cal. 20''' brass gilt moustache lever movement, cut bi-metallic balance with peripheral timing screws and blued Breguet balance spring with terminal curve, François Wilmot's micrometric cam regulation system, gold wheel train • numbered gold cuvette • white enamel dial, Roman numerals, subsidiary dials for constant seconds and 30-minute register, gold pear hands, outer minute track with 1/5 seconds divisions • bassine engine-turned case • case, cuvette, dial and movement signed

Movement is in working condition while cataloguing, but it has not been tested for the accuracy of time keeping and a service might be required at the buyer's expense. Dial in good condition enamel still intact. Case with normal scuffs due to use and age knife scuffs near the lip. Overall in good condition.
"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."

This particular model is the most complicated Gondolo pocket watch known. Today only 25 Chronograph Gondolo have been identified and only 6 like this particular example with the 30 mn register:

Chronometro Gondolo watches were made especially for the retailer Gondolo & Labouriau in Rio de Janeiro who were important retailers from the 1870s. From 1902 Patek Philippe produced exclusively for Gondolo & Labouriau a specially designed very high quality calibre called "Chronometro Gondolo". Its specification required the ebauche to be based on Adrien Philippe's patent▨ed design (US patent No. 20483 of Jan 13, 1891) with the so called "moustache" lever escapement, cut bimetallic balance and also François Wilmot's patented micrometric cam regulator (US patent No 129197 registered on July 16, 1872).