Swiss 18k gold open faced carillon repeating lever Circa 1912

Gold carillon minute repeater by Patek Philippe
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A fine and very rare Swiss 18 carat gold open faced carillon minute repeating keyless lever watch, circa 1912. Mechanical lever movement, 32 jewels, bimetallic compensation balance, micrometer regulator, wolf’s tooth winding, hour and minute repeating and carillon quarter hour repeating on three polished steel hammers onto three gongs. Gold cuvett. White enamel dial with Roman numerals, blued steel Breguet hands, outer railway minute divisions and subsidiary seconds. Plain case, repeating slide in the band. Case, cuvette, dial and movement signed, case and movement numbered.
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Diameter: 50 mm
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Signed: Patek Philippe & Cie Genève