Swiss gold, diamond and enamel pocket/pendant watch Circa 1820

A Swiss 18K yellow gold, diamond and painted enamel key-wound pocket/pendant watch, circa 1820. Gilt full plate fusee verge movement, pierced balance bridge, three armed balance, silver regulation. White enamel dial, black Arabic numerals, black outer minute divisions, winding aperture at two and gilt spade hands. Consular case with enamel scene, set with diamonds and florally applied decoration. Movement signed.
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Diameter: 42 mm
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Signed: Delisle & Frères  Swiss