Swiss chromed military centre seconds pocket watch Circa 1920

Chromed keyless lever military watch
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An unusual, Swiss chromed centre seconds large keyless pocket watch, circa 1920. Made by the Italian military institution Indrografico Della Marina Lemania. A polished case, nickel cuvette, movement covered by glass, case back engraved with 1920. White enamel dial with outer minute track, inner track for 60 seconds indication. Blued steel hands. A gilt brass movement, 11 jewels, straight-line lever escapement, monometallic balance, self-compensating blued steel Breguet balance spring, index regulator. Dial and movement signed.
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Thickness 27 mm
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Diameter: 103 mm
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Signed: Lemania  Swiss