Rare Swiss gold open faced lever pocket watch Circa 1912

Gold lever watch by Patek Philippe
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An extremely rare and fine Genèva doctor’s chronograph with 30 minute counter and pulsation scale, circa 1912.
Delivered to Walser Wald jewellers in Argentina – presented in 1938 to Benito E. Martinez, conservative party member of parliament – with original box.An 18 carat gold case, inner lid with presentation engraving:”Al Diputado Nacional Benito E. Martinez Sus Amigos Politicos De La VIa Seccion Electoral Pcia Bs As 31-5-1938″.
Two tone silvered dial, bridge movement, gold screw compensation balance.
This striking monopusher pocket chronograph is unusually beautiful and elegant and even with some minor traces of wear and tear it is in excellent condition.
The watch’s most distinguishing features is the rare pulsation scale on the exquisite sector dial which bears the signature of Argentinian jeweller Walser Wald.
The company was one of the most prominent distributors of Patek Philippe timepieces in South America.
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Diameter: 50 mm
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Weight: 106 g
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Signed:  Patek  Philippe & Cie  Genèva
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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.