French silver verge pocket watch with date Circa 1800

Large silver open faced watch 
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An exceptionally large and very interesting verge watch with date, signed by Clavey, France circa 1800. An impressive silver case, maker’s mark JJC, full plate movement with magnificently engraved balance bridge and extraordinary large balance wheel, verge escapement, signed main plate, original signed enamel dial, hand with date, hinge slightly defect, overall in good condition, extraordinary watch.
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Diameter: 61 mm
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Weight: 185 g
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Signed: Clavey France
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M. Clavey is mentioned in Breguet’s archive records in connection with Breguet. Whether it is the same watchmaker, we do not know!