English 18K gold, enamel and diamond set lever Circa 1830

Gold, enamel and diamond set lever by Barwise
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An English 18 carat gold, enamel and diamond set key wind pocket watch by Barwise, London, circa 1830. Gilt full plate English lever movement, engraved balance bridge, diamond endstone, 3 arm balance, silver regulation. White enamel dial, black Arabic numerals, outer minute track, winding aperture at 2 and blued steel hands. Open face consular case, blue translucent enamel decoration to back, diamond-set bezels. Dial and movement signed. Sprung front bezel opened by depressing the button in the gold pendant.
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Diameter: 43 mm
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Weight: 70 g
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Signed: Barwise London
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With 9 carat gold chain and Breguet style ratchet gold pocket watch key.
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Reference 0025000