German silver Glashütte deck watch with swastika Circa 1936

Open faced pocket watch by A. Lange & Söhne
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A fine Glashütte deck watch of the German “Kriegsmarine”, circa 1936.
Silver, polished case with military engraving: swastika “M 23”. Signed enamel dial with Arabic numerals, auxiliary seconds and blued spade hands. 3/4 plate movement, frosted, gilt, with gold screw compensation balance and index spring fine adjusting device.
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Diameter: 59 mm
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Weight: 145 g
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Signed: A. Lange & Söhne, Glashütte i/SA, Deutsche Uhrenfabrikation