Swiss 18K gold minute repeating keyless dress watch Circa 1900

Gold open faced lever pocket watch by Vacheron & Constantin
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A fine, attractive, Swiss manual wind gold minute repeating open faced pocket watch, circa 1900. Frosted gilt movement, 29 jewels, straight-line lever escapement, cut-bimetallic compensation balance, Breguet balance spring, index regulator, repeating on gongs activated by a slide on the band. White enamel dial, Breguet-style numerals, outer minute track, subsidiary seconds, and original gold spade hands. Polished 18K yellow gold case, back cover with applied monogram. Dial, case and movement signed.
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Diameter: 48 mm
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Signed: Vacheron & Constantin Genève