Swiss rare pendant watch with matching brooch Circa 1910

Gold, enamel and diamond-set open faced lever by Vacheron & Constantin
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A very fine, rare Swiss diamond-set 18 Carat gold and enamel pendant watch with matching brooch, circa 1910.
Case with opaque turquoise coloured enamel, the backside with a centred diamond-set fleur-de-lys within a narrow border of diamonds, the band with rose decor, trefoil shaped turnable pendant. Gold dome. Comes with a corresponding turquoise enamelled brooch in the shape of a loop set with diamonds. White enamel dial with radial Roman hours, Arabic minutes and gold Louis XVI hands. Rhodium-plated bridge movement with Geneva Striping decoration and gold screw compensation balance. Dial signed, cuvette numbered, movement signed and numbered.
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Diameter: 26 mm
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Weight: 29 g
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Signed: Vacheron & Constantin Geneva