Small Swiss gilt metal keyless marine chronometer Circa 1942

Marine chronometer with sweep seconds and power reserve by Longines
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A small Swiss gilt metal keyless marine chronometer with sweep seconds, power reserve and Glucydur balance, circa 1942. Nickel finished lever movement, 21 jewels, Glucydur balance, Nivarox hairspring, cam wheel regulator, glazed dust cover. Silvered matte dial, inner Arabic 24 hour calibration, outer 60 seconds divisions, blued steel hands, sweep centre seconds and arched 36 hours power reserve display. American made water resistant type case, screw bezel and back, gimballed within a two tier mahogany box, chronometer trial results from The Ontario Hughes-Owens Co. Ltd., Ottawa, Canada, Deck Watch Longines Chronometer Watch No. 6403222 dated 21 December 1943 attached to the inside cover.
Dial and movement signed.
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Diameter: 90 mm
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Box: 150 x 150 x 110 mm
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Signed: Longines, Chronometer