English plain silver pair cased verge pocket watch Circa 1690

Open faced pocket watch with date indicator
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An English pair cased verge pocket watch with date indicator, circa 1690.
Silver outer and inner case. Silver champlevé dial, signed Bellon London, Roman numerals for the hours, Arabic numerals for the minutes, date window at “6”, decorative hands. Full plate movement, chain/fusee, three-arm steel balance, signed Rouman Bellon London.
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Diameter: 57 mm
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Weight: 175 g
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Signed: Rouman Bellon, London