French silver pair cased watch by Pierre Durand Circa 1670

Silver open faced pocket watch
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A chased silver  verge watch, signed by ‘Pierre Paris A Nantes’, circa 1670. With a key and leather covered brass pair case studded with silver. Full plate fire gilt movement, pre balance spring watch, pierced and engraved balance cock.
Decorative silver dial with Roman numerals and single steel hand. Winding through the back.
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Signed: Pierre Paris a Nantes
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Pierre Paris second half 17th century.