German 14K rose gold open faced lever watch Circa 1912

Rose gold Glashütte lever by A. Lange & Söhne
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A 14 carat rose gold open faced Glashütte pocket watch, circa 1912. Sold on February 24th, 1912, for 232 marks to the Gebr. Eppner in Berlin. ¾ Plate movement, DUF, a lever escapement and gold screw compensation balance. White enamel dial with Arabic hours, an outer minute track, a sunk center and subsidiary seconds at 6 o’clock, blued spade & whip hands. A plain monogrammed case. Dial signed by the watchmaker, case and movement numbered and signed by the watchmaker, cuvette signed Gebr. Eppner Berlin, movement and case with matching numbers.
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Diameter: 52 mm
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Weight: 83 g
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Signed: Deutsche Uhrenfabrikation Glashütte-SA A. Lange & Söhne
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DUF stands for Direct Upward Force. This is a function that prevents the timepiece from being damaged by impact.