French gold and enamel quarter repeating watch Circa 1785

Gold quarter repeating watch with protective case
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A French quarter repeating verge in an 18 carat gold and enamel case and outer glazed gilt protective case circa 1785. Full plate gilt fusee movement. Finely pierced and engraved bridge cock with steel coqueret, plain three-arm gilt balance with blue steel spiral hairspring. Silver regulator dial with indicator. Push pendant for quarter repeating on a bell in the back of the case. Winding through the white enamel dial with Roman numerals and decorative silver stone-set hands. Gold case, the front bezel set with a row of stones. Both bezels with multicolour gold decorations. To the back, translucent blue enamel on a guilloché background with a ring of white enamel and a silver stone-set vase with flowers in the centre.
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Diameter: 52  mm
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Weight: 101 g
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Signed: Hessen a Paris
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Andre Hessen. Paris 1775-90, then Stockholm.
Clockmaker to French King’s brother.
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Enamel partially restored.
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Reference 0027500