French octagonal enamel and rock crystal watch Circa 1650

Excellent rock crystal octagonal watch by Pierre Vernede 
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A rare French gold, rock crystal and enamelled octagonal verge pocket watch, circa 1650.
Gilded brass movement, partly blued steel, verge escapement, pierced and engraved screwed-on balance cock, plain steel balance, rachet-and-click set-up, early Egyptian pillars. Gold, champlevé and painted enamel dial, radial blue chapter ring with yellow Roman numerals, and steel hand. Rock crystal and enamelled octagonal case with gold mounts. Signed on the back plate: P / Vernede / Agen.
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Dimensions: 32 x 27 x 25 mm
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Signed: Pierre Vernede