Platinum, jade, diamond set lever pendant watch Circa 1920

Platinum brooch watch 
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A very rare Swiss platinum, jade and diamond set keyless pendant watch made by Verger Frères, circa 1920. The mechanical movement by Vacheron & Constantin with
a lever escapement. Small silvered dial with Arabic hour numerals, surrounded by an
Art Deco style geometric bezel with diamond set quarters accented by a decorative jade panel, a diamond set rim, the band decorated with a floral and leaf motif interspersed with round cut diamonds, the back chased in a floral and leaf motif centred by a plain snap-on back, suspended from a matching brooch by two diamond set links and a jade, diamond and onyx pin. Movement and case signed and numbered, case further stamped VF for Verger Frères. Comes with its fitted presentation box.
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Diameter: 40 mm
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Thickness: 7 mm
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Signed: Vacheron & Constantin Geneva