English gold open faced cylinder pocket watch Circa 1830

Gold open faced watch by Viner & Co
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A rare English gentleman’s pocket watch with pull wind mechanism via coaxial button in pendant, circa 1830.
18 carat gold, engine turned case with case maker punch mark “LC” (Louis Comptesse, Soho, London). Silvered, engine turned dial with radial Roman numerals. Bridge movement, frosted, gilt, signed, with crown winding via tension spring, cylinder escapement, three-arm ring balance and ruby endstone on balance and cylinder wheel.
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Diameter: 50 mm
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Weight: 83 g
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Signed: Viner & Co. Inventors, Royal Exchange London