Swiss gold keyless Chronometro Gondolo pocket watch Circa 1913

Pink gold lever pocket watch 
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A very fine Swiss, 18K pink gold, keyless Chronometro Gondolo pocket watch, circa 1913. Made for Gondolo & Laboriau, Relojoeiros, Rio de Janeiro. A polished case. hinged gold cuvette. White enamel dial with radial Roman numerals, outer minute track with five-minute Arabic numerals, subsidiary seconds. Gold spade hands. A gilt brass movement patented bridge calibre, 21 jewels, wolf’s tooth winding, gold wheel train, straight-line moustache lever escapement, cut bimetallic compensation balance with blued steel Breguet balance spring, Wilmot’s patented micrometric cam regulator. Dial, case, cuvette and movement signed.
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Diameter: 51 mm
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Signed: Patek Philippe & Cie  Genève
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The case has some dents, the movement is patinated.