Elegant Swiss 18 carat yellow gold dress watch Circa 1920

Swiss open faced lever watch
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A very fine and elegant 18K yellow gold Swiss, thin, keyless dress watch, circa 1920. A solid, polished, hinged gold cuvette. White enamel dial with painted Breguet numerals, outer minute track with five seconds/ minutes red Arabic markers, sunk subsidiary seconds dial. Yellow gold Breguet hands. A frosted gilt movement, 15 jewels, straight-line lever escapement, cut bimetallic compensation balance, blued steel Breguet balance spring, index regulator. Dial, case and movement signed.
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Diameter: 48 mm
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Signed: Vacheron & Constantin Genève