English 18K gold open faced lever pocket watch Circa 1820

Gold lever watch by Robert Roskell
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A very fine English 18 carat gold open faced lever pocket watch with 15 seconds indication, circa 1820. Full plate movement, key wind, chain and fusee, a Massey Type I lever escapement according to Edward Massey and three-arm steel ring balance, movement protection cap.
White enamel dial with Roman hours, outer minute divisions, subsidiary seconds at 6 o’clock and spade & whip hands. The case with a florally engraved band, pendant and bow, the back is engine-turned, maker’s mark EJ. Case numbered, movement signed and numbered.
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Diameter: 54 mm
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Weight: 140 g
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Signed: Robt Roskell London
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Robert Roskell was a qualified English watch and clockmaker in Liverpool and London. Due to his various partnerships and takeovers, he signed in turn with Robert & Son, Hunt & Roskell, Robert Roskell Liverpool or Roskell Liverpool.