Swiss 18K gold new old stock split seconds chronograph Circa 1980

Gold hunting cased lever
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A large Swiss, new old stock 18 carat yellow gold hunting cased keyless pocket watch, circa 1980. A polished case with olive shaped button split seconds chronograph and registers. White enamel dial with Arabic hours, outer minute divisions, an outermost fifth of a second track with Arabic five-minute/second numerals, subsidiary seconds at three and nine o’clock and decorative hands. Lever escapement. Dial and case signed, movement signed Heuer-Leonidas SA.
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Diameter: 58 mm
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Signed: Ed. Heuer & Cie.  Swiss