Swiss cylinder watch made for the Polish market Circa 1856

Gold and enamel open faced cylinder watch by Patek Philippe
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A fine and rare Swiss 18 carat gold and enamel open faced pocket watch made for the Polish market, circa 1856. Sold on January 31, 1857. Frosted gilt bar caliber movement, cylinder escapement, three armed gilt balance with flat balance spring, index regulator. Gold hinged  cuvette. White enamel dial with narrow Roman numerals, outer minute track, secured by two small screws and original blued steel Breguet hands. engravedCase back finely engraved and filled with black champlevé enamel depicting Hetman Stanislaw Zólkiewski, engine turned background, reeded band. Cuvette signed, case and cuvette numbered. Accompanied by the Extract from the Archives.
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Diameter: 45 mm
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Signed: Patek, Philippe & Co W Genewie
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Hetman Stanislaw Zolkiewski (1547-1619) is one of the most heroic figures in Polish history. An accomplished general, a skilful diplomat and a patriot, he excelled in all private and public virtues. He wrote an important history of his Muscovite campaigns.