American brass marine chronometer from WWII Circa 1943

Marine chronometer from WWII Hamilton Model 22
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An American marine chronometer from WWII made by Hamilton in Lancaster, Pennsylvania United States of America, circa 1943. This Hamilton model 22 has an open faced case with a company plate, glazed lid, a gimbal suspension and is screwed. The original silvered dial has Arabic hour numerals, a subsidiary seconds dial at six o’clock also with Arabis numerals, a power reserve indicator at twelve o’clock and blued steel hands. The numbered movement has a chronometer escapement with 21 jewels, is adjusted to temperature, has six positions and is marked “US Navy-BU Ships 1942”.

The dial and movement are signed.
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Dimensions: 150 x 150 x 150 mm
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Signed: Hamilton, Lancaster, PA, U.S.A.