English silver one-handed pair-cased pocket watch Circa 1690

Open faced verge pocket watch of high quality
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An English one-handed pair-cased verge pocket watch of high quality, circa 1690.
This watch consists a silver outer case, a silver inner case with a case maker’s punch mark “AH” under a crown, a signed silver champlevé dial, partly gilt, decorate centre and Roman numerals. It has a full plate movement, a chain/fusee and a three-arm iron balance.
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Diameter: 57 mm
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Weight: 149 g
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Signed: De Choudens, presumably London