Swiss gold Second Morte indépendante pocket watch Circa 1930

Hunting cased pocket watch by Vacheron Constantin
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A Swiss, keyless winding, gold hunting cased pocket watch with extract from the Archives, circa 1930. The Extract from the Archives, dated March 15 2019, mentioned that this watch was manufactured in 1930.
This round shaped 18 Carat arat pink gold watch with a plain polished case has two horological complications: – Dead independent seconds (exterior graduation with central hand; activated by the olive shaped push piece located on the case band, at 12 o’clock) – Two barrels with differential gears and bi directional winding inspired by Sylvain Mairet’s (1805-1890) works (1850/1855). An enamel dial with Roman radial hours, outer minutes/seconds track with Arabic five minutes/seconds numerals, and Fleur de Lys hands. And a nickel plated movement based on Victorin Piguet (Le Sentier, Vallée de Joux) ebauche (No. 12 323) from 1913, with two going barrels, straight line equilibrated lever escapement, compensated balance, and Palladium hairspring with a terminal curve. The case and movement are signed.
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Diameter: 52 mm
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Signed: Vacheron Constantin
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Seconde morte indépendante (Dead independent seconds)
A large hand in the dial’s centre, driven by a separate train to the hours and minutes and making one jump forward every second.
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Piguet, Victorin-Emile (1850-1937)
A legendary maker of complicated ebauches. His ebauches were used by Patek Philippe, Vacheron Constantin, Breguet, etc., for their special projects, including ultra-complicated watches. Victorin Piguet is the son of Henri-Daniel Piguet (1817-1892), watchmaker, and his second spouse, Louise-Françoise LeCoultre. He worked with his brothers, William Piguet (1846-?), Henri-Julien Piguet (1852-1936), and Alfred-William Piguet (1859-1917), starting a workshop in Geneva in 1880, under the name “V. Piguet et Frères”. Three years later, he returned to his native Vallée de Joux. It’s extremely rare to find pieces signed by him. His workshop, “Victorin Piguet & Cie”, is continued by his sons (including Jean-Victorin Piguet), who work closely with Patek Philippe, a house that bought the workshop in the 1980s.