Small Swiss pink gold Chronometro Gondolo watch Circa 1900

Gold keyless lady’s pocket watch 
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A very fine, small Swiss, 18K pink gold, keyless lady’s pendant watch. Chronometro Gondolo by Patek Philippe & Cie, Genève. Made for Gondolo & Labouriau, Rio de Janeiro, in 1900, sold on December 7, 1909. Accompanied by the original Patek Philippe morocco fitted box, spare mainspring and the Extract from the Archives. A polished bezel, band, engine-turned back cover with a foliate monogram MD, and polished border. Hinged gold cuvette.
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White enamel dial with radial Roman numerals, outer minute track, Arabic five-minute numerals, and subsidiary seconds. Gold spade hands. A frosted gilt movement, bar calibre, 18 jewels, wolf’s tooth winding, gold wheel train, straight-line moustache lever escapement, cut bimetallic compensation balance, blued steel Breguet balance spring, index regulator. Dial, case, cuvette and movement signed.
Diameter: 36 mm
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Signed: Patek Philippe & Cie. Genève