German silver lever deck watch with power reserve Circa 1945

Silver observation deck watch by A. Lange & Söhne
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A silver open faced keyless lever deck watch of the German Kriegsmarine with power reserve indication, circa 1945. Completed by Andreas Huber in München-Berlin. Gilt finished ¾ plate lever movement. The hinged silver cuvette is engraved Werk A. Lange & Söhne, Fertiggestellt Andreas Huber München-Berlin. Silvered dial with Arabic hour numerals, an outer minute track, blued steel spade hands, and two engine turned subsidiary dials for 35 hour power reserve and constant seconds. The plain case with a snap on back. Case numbered and engraved with an emblem, movement signed.
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Diameter: 59 mm
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Signed: A. Lange & Söhne Glashütte I/SA