Very fine and rare Swiss gold complicated watch Circa 1911

Complicated lever watch by Patek Philippe
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A very fine and rare Swiss 18 carat gold open faced minute repeating perpetual calendar solit seconds chronograph keyless lever pocket watch with moon phases, circa 1911. Nickel finished lever movement, 35 jewels, minute repeating on two gongs activated by a slide in the band. Inscribed gold cuvette. White enamel dial, Breguet numerals, outer Arabic railway fifth seconds ring, red Arabic fifths divisions, blued steel hands, three subsidiary dials for day and month and date combined with constant seconds and phases of the moon with lunar calendar. Heavy monogrammed  case, split seconds chronograph buttons in the band and in the crown, both locked by a sliding lever in the band. Case, cuvette, dial and movement signed.
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Diameter: 53 mm
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Signed: Patek, Philippe & Cie Geneva Switzerland
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In 1844 Patek met the French watchmaker Jean-Adrien Philippe, who demonstrated his new invention: the first watch without a wind-up key. Patek and Philippe decided to work together from 1845 and in 1851 their company Patek Philippe and Cie was founded. In 1901 the name was officially Ancienne Manufacture d’Horlogerie Patek Philippe and Cie, S.A.
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The company has 70 patents and produces the entire clockwork in-house.
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Patek Philippe (1839), together with Audemars Piguet (1875), Vacheron Constantin (1755) and A. Lange und Sohne (1845), is considered to be “the big four” in the watchmaking world. The very luxurious timepieces are of high quality and therefore often raise record amounts at auctions. A pocket watch produced in 1933 was sold for 11 million in 1999 at an auction of Sotheby’s. A world record at that time. On 11 November 2014 it was auctioned again and this time it was sold for 19 million euros.