German rose gold open faced lever pocket watch Circa 1906

Gold lever watch
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A fine German 18 carat pink gold open faced manual wound lever pocket watch manufactured in quality 1A, circa 1906. Sold on 22 November 1906 to H. Schwarz company, Leipzig, for 351 Marks.
3/4 Plate movement, lever escapement, gold screwed compensation balance.
Cream enamel dial with Arabic numerals and subsidiary seconds. Plain case. Comes with Lange Extract from the Archives.
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Diameter: 50 mm
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Weight: 96 g
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Signed: A. Lange & Söhne Glashütte B/Dresden