English 18k gold open faced complicated watch Circa 1836

Fine and rare gold complicated watch by Viner
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A fine and rare English 18 carat gold open faced pump minute repeating keyless and keywound lever calendar pocket watch with moon phase, circa 1836. Gilt finished lever movement with transitional winding, later bimetallic compensation balance, minute repeating on two gongs activated by a pull-push twist button in the band. Gold cuvette. Scroll engraved gold dial, outer engine turned chapter ring with Roman numerals, three subsidiary dials for day and date, constant seconds, fan form aperture for phases of the moon and lunar calendar. Large circular case with finely engraved scroll and foliage decoration, reverse centered by engraved coat-of-arms and a monogram. Case and cuvette stamped with casemaker’s initials LC for Louis Comtesse and London date letter for 1836, dial and movement signed.
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Diameter: 58.5 mm
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Signed: Viner Invt et Fecit Regent Street London