English: Model 22 Marinechronometer from the 1940's. The Model 22 looked like a large pocket watch and had a traditional mainspring, available in a traditional gimbaled double box and also in a deck watch. The Model 22 had a two-day power reserve and the movements were marked U.S. Navy Bureau of Ships. The model 22 was also used by the U.S. Army and on the back of some it is marked U.S. Army, but all the model 22 movements are marked U.S. Navy Bureau of Ships.
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