Rare German 35 hour power reserve lever watch Circa 1940

Ankerchronometer in mahogany box by A. Lange & Söhne
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A rare Glashütte 35 hour power reserve anker chronometer of the German Navy in a mahogany box, circa 1940. Gilded brass movement with a going barrel, lever escapement, Griesbach chronometer balance with four weights and two screws. Silvered dial with Roman hours, outer minute divisions, subsidiary seconds at 6 o’clock, power reserve indication at 12 and spade & whip hands. Brass case with an engraved swastika and marine number 306. Dial and movement signed and numbered, case numbered. Case and movement with matching numbers.
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Dimensions: 175 x 175 x 180 mm
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Signed: A. Lange & Söhne Glashütte B/Dresden
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In 1936, Lange & Söhne began producing a series of lever chronometers with serial numbers 1000 to 1430. The design changed slightly with number 1165 when the lever wheel was reduced from 20 mm to 18 mm. All chronometers had a barrel without chain or fusee and a lateral device for setting the hands. When the German standard chronometer was introduced in 1942, the production of lever chronometers was discontinued. While the lever chronometers were indeed a simpler version of the classic spring detent chronometer and their power reserve was based on the shorter time on duty of the ships they were intended for, they remain fine examples of German chronometer making. Especially the large lever of almost 20 mm with its red ruby pallets sitting in the gilt movement is truly impressive to look at.