Swiss 18k gold lever made for the Russian market Circa 1869

Early gold complicated open faced lever watch by Louis Audemars
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A fine, rare and early Swiss 18 carat gold open faced keyless lever watch with full calendar and moon phases made for the Russian market, circa 1869. Retailed by Paul Buhré, St. Petersburg.
Nickel finished fully jewelled movement, Audemars counterpoised lever or ‘Bishop’s crook pallet’, bimetallic compensation balance, wolf’s tooth winding. Gold cuvette. White enamel dial with Roman numerals, window for month, three subsidiary dials for day, date and moon phases combined with constant seconds and lunar calendar. Engine turned case. Case numbered, stamped with Louis Audemars hallmark and casemaker’s initials M.F. for Meylan Frères, cuvette numbered and signed Paul Buhré St. Pétersbourg and Louis Audemars Brassus, movement signed and numbered.
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Diameter: 55 mm
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Signed: Louis Audemars Brassus