Beautiful and early English Champlevé pair-cased watch Circa 1750

Silver pair-cased cylinder pocket watch by John Jullion
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An extremely beautiful, early English Champlevé spindle watch in double-case, circa 1750.
Signed and numbered, silver double case in very nice quality and old watch paper. Signed, gilded full plate movement, cylinder escapement, decoratively pierced and engraved masked balance cock and engraved foot, plain flat balance, diamond endstone, fusee and chain, square baluster pillars, preload via worm screw. Extremely nice champlevé dial with Roman numerals, outer Arabic minute ring, blued iron beetle and poker hands, central cartouches, and signed Jullion Brentford.
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Diameter: 48 mm
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Weight: 92 g
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Signed: John Jullion Brentford