German silver rare Glashütte Deck Chronometer Circa 1935

Silver open faced pocket watch by A. Lange & Söhne
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A very rare A. Lange & Söhne Deck Chronometer with Ankerchronometer and caliber Assmann, circa 1935.
Silver case with gold crown and gold hinge; very fine Ankerchronometer movement with big chronometer balance, fine adjusting device, gold lever and gold escape wheel; signed white enamel dial with Arabic numerals, sunk subsidiary dial for the seconds, dial with minimal peripheral chip under the bezel, plexi glass and steel hands with rust. Matching numbers on case and movement.
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Diameter: 60 mm
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Weight: 150 g
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Signed: A. Lange & Söhne Glashütte