Swiss gold astronomical minute repeating watch Circa 1911

Gold minute repeating lever watch
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A rare and important yellow gold open faced perpetual calendar split second chronograph watch with moon phases, circa 1911. Nickel lever movement, 35 jewels, bimetallic balance with pink gold screws, precision regulator, two hammers repeating on two gongs, white enamel dial, Breguet numerals, blued steel spade hands, subsidiary dials for month, day, moon phases, and date combined with constant seconds, outer scale for minutes and 1/5 second divisions, 18k yellow gold case, minute repeating slide to the band at 9, split seconds pusher at 11, case, dial, and movement signed.
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Diameter: 53 mm
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Signed: Patek Philippe & Co. Geneva
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Accompanied by an Extract from the Archives confirming the year of manufacture in 1911 and date of sale in 1919. Together with a Patek Philippe service tag. This watch is an excellent example of an early 20th century Grand Complication watch from Patek Philippe. The Grand Complication was a staple of Patek’s production and consisted of the combination of three or more complications, represented in this watch by the split-second chronograph, perpetual calendar and minute repeater. This watch also retains a well preserved dial and case, the case with tight hinges and crisp hallmarks, and the dial with no hairlines.