English decorative watch for the Ottoman market Circa 1840

Silver pair cased verge pocket watch by Harris
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An English decorative pair cased verge pocket watch for the Ottoman market, circa 1840.
Two cases: outer case – silver, covered with tortoiseshell, stud decoration, engraved silver ornaments and with a large lateral hinge; inner case – silver, polished, with a large lateral hinge. Silver and Champlevé dial with translucent blue enamelled inlaid Ottoman numerals, translucent green enamelled outer five-minute divisions and “Poker & Beetle” hands. Signed, gilt full plate movement, keywind, with applied, florally engraved ornaments, chain/fusee, moulded movement pillars, three-arm brass balance and a florally engraved and pierced balance cock with mascaron.
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Diameter: 81 mm
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Weight: 301 g
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Signed: Harris, Canterbury