French pair cased Puritan pre hairspring verge Circa 1660

Silver pair cased Puritan pre hairspring verge watch by G. Gamot
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A fine and early French silver pair cased Puritan pre hairspring verge watch, circa 1660. Gilt finished gut and fusée verge movement, finely chased, engraved and pierced floral decorated balance cock and foot, secured by a pin to a block in the top plate, steel two armed pre hairspring balance wheel, worm set up with engraved and pierced decorative mounts, ratchet and wheel regulation, turned pillars. Silver dial, engraved and blackened Roman numerals, inner quarter hour ring, single pierced and engraved double ended gilt hand. Plain case, revolving cover revealing the winding hole, swivel pendant and seven piece hinge, leather covered and silver pin work floral decorated outer case.
Movement signed.
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Diameter: 41 mm
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Signed: G. Gamot Paris