English gold pre balance spring verge clock watch Circa 1683

Gold open faced verge clock watch
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A pierced and engraved pair cased gold clock watch, the inner case by Nathaniel Delander, London hallmarks for 1683-1684. The pair case by Richard Blundell, London hallmarks for 1695-1996, watch made by ‘William Knottesford, London’.
Full plate fire gilt movement, pierced and engraved balance cock, movement signed.
Gold champlevé dial with single steel hand.
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Signed:  Knotford   London
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William Knottesford, London, Clockmakers Company 1663-97, d.c.1698.
In excellent condition.