Extremely rare Swiss lever with 14 complications Circa 1910

Heavy gold hunting cased complicated lever attributed to Louis Audemars
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An extremely fine and equally rare, heavy Swiss 18 carat gold hunting cased two train grande et petite sonnerie trip minute repeating split seconds chronograph keyless lever clockwatch with instantaneous 30 minute register, perpetual calendar and moon phases made for the English market, circa 1910. Comes with 14 complications. Rhodium plated 3/4 plate movement, fausses côtes decoration, two train, differential tandem winding, fully jeweled, most in screwed gold chatons, lateral lever escapement, cut bimetallic compensation balance with gold temperature adjustment screws, blued steel Breguet balance spring with overcoil, index regulator, striking and repeating on gongs, small slide in the band, hours/quarters and strike/silent levers protruding from the bezel. Gold hinged cuvette. White enamel dial with Roman numerals, outer minute track, outermost chronograph divisions with fifths of a second divisions and Arabic five second/minute numerals, four subsidiary dials for days of the week, date, months concentric with leap year indication and instantaneous 30 minute register, seconds and aperture for the phases of the moon, original blued steel pear hands. Massive polished case, push button for the chronograph at 12, the split seconds in the crown. Case numbered, the back of the moon phase disc numbered and scratched Brassus.
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Diameter: 59 mm
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Signed: No name
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Very few manufacturers made such highly complicated watches as this watch and those who did make them were the very best Swiss watch companies including Patek Philippe, Vacheron & Constantin and Louis Audemars. Sometimes, watches destined for export were not signed, however, the present watch can be attributed to Louis Audemars because the place name ‘Brassus’ was used by the firm of Louis Audemars as a tradename and this is scratched along with ‘Suisse’ and the watch number on the back of the moonphase disc. 
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Louis Audemars (1782-1833) born in La Vallée de Joux, at 16 Louis Audemars was apprenticed to Philippe Meylan and soon established his reputation for the fine workmanship of his movements. All eight of Audemar’s sons continued in the family firm, making finished movements and around 1837 inventing the keyless winding/setting system known today as the Audemars system. In 1848 Audemars began producing complete watches. The company became recognized as one of the best, furnishing the major Swiss and French manufacturers such as Le Roy, Patek Philippe and Vacheron Constantin, with highly complicated watches and movements.