Swiss 18K pink gold Chronometro Gondolo pocket watch Circa 1907

Gold open faced lever pocket watch
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A fine and rare Swiss 18K pink gold keyless Chronometro Gondolo pocket watch, circa 1907. Made for Gondolo & Labouriau, Relojoeiros, Rio de Janeiro. A polished bezel, engine-turned back with polished border and a hinged gold cuvette. White enamel dial with radial Roman numerals, outer minute track with five-minute Arabic numerals, subsidiary seconds and gold spade hands. A matte 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 patent micrometric cam regulator. Dial, case, cuvette and movement signed.
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Diameter: 56 mm
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Signed: Patek, Philippe & Cie  Genève