Swiss 8 day going watch with power reserve Circa 1850

Gold hunting cased lever with day of the week calendar by Czapek & Cie
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A very fine and interesting Swiss 18K gold, hunting-cased eight-day going demi-chronometer pocket watch with power reserve, day of the week, two-barrels, and tandem winding., circa 1850.
Gilt movement, 19 jewels, two barrels with tandem winding, straight line lever escapement, bimetallic cut compensation balance, blued steel Breguet balance spring. Engine-turned case, reeded band, gold hinged cuvette.
White enamel dial, radial Roman numerals, outer minute divisions, subsidiary seconds at seven, power reserve at five with double-ended hand for 0-7 and Sun.-Sat., secured by two small screws. Blued steel Fleur de lys hands. Signed on the cuvette, movement signed LeCoultre, Genève under the dial.
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Diameter: 47 mm
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Signed: Czapek & Cie à Genève
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Czapek & Cie. Frantisek Czapek was a Polish émigré who arrived in Switzerland in 1832 after the failed Polish insurrection against Russia. On May 1, 1839, Antoni Patek and Czapek founded the firm Patek et Czapek in Geneva. The partnership lasted six years, during which many exceptional watches were produced. Afterwards, Patek established Patek, Philippe Co. with a new partner, Adrien Philippe, and Czapek founded “Czapek et Cie”, with Juliusz Gruzewski. The company did well. Gruzewski was a personal friend of Napoleon III, and Czapek quickly became watchmaker to the court of the Emperor. He had a factory in Geneva, a shop in Warsaw, and another in Paris.