German silver pocket watch manufactured in quality 1A Circa 1909

Silver open faced pocket watch by A. Lange & Söhne
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A German, Glashütte gentleman’s pocket watch in a silver case – manufactured in quality 1A – with box and certificate, circa 1909.
Signed, frosted, gilt 3/4 plate movement with screwed gold chatons, gold screw compensation balance, hand-engraved balance cock, index spring fine adjusting device, gold lever, and a chatoned diamond endstone on balance. Silver, polished case with an engraved noble family crest and gold crown and hinge. Signed enamel dial with Arabic Empire numerals, auxiliary seconds, and gold spade hands.
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Diameter: 55 mm
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Weight: 103 g
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Signed: A. Lange & Söhne Glashütte i/SA