Swiss silver military deck watch with power reserve Circa 1930

Silver lever chronometer by Ulysse Nardin
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A very fine Swiss, silver, military, keyless deck and pocket lever chronometer with power reserve indication and Guillaume balance, circa 1930. Hinged bezels and back, hinged engraved cuvette. Matte silver dial with radial Roman numerals, outer minute track, subsidiary sunk dials for the seconds and the up and down power reserve indication at 12, in red. Blued steel spade hands. A frosted gilt movement, 21 jewels, straight-line lever escapement, cut bimetallic Guillaume balance, blued steel Breguet balance spring, index regulator. Dial, case and movement signed.
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Diameter: 56 mm
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Signed: Ulysse Nardin  Locle
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The dial is patinated.