English silver pair-cased watch in tortoiseshell outer case Circa 1690

Silver single-handed verge pocket watch 
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An impressive English, silver and tortoiseshell pair-cased, early balance spring, single-hand pocket watch, circa 1690. Outer: polished, Inner: polished, deep back, split bezel, loose ring pendant. Silver, champlevé dial with radial Roman numerals and inner half and quarter-hour divisions, the centre decorated with scrolls and the signature cartouches and Fleur-de-lys steel hour pointer. Gilt brass, full plate movement with divided Egyptian pillars, fusée and chain, verge escapement, plain steel three-arm balance, flat balance spring, gilt brass winged clock pierced and engraved with foliage. Dial and movement signed.
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Diameter: 53 mm
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Thickness: 32 mm
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Signed: Henry Jones  London