Swiss hunting cased repeating lever chronograph Circa 1910

Gold minute repeater with instantaneous 30 minute register by Longines
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A fine Swiss 18 carat gold hunting cased minute repeating chronograph keyless lever pocket watch with instantaneous 30 minute register, circa 1910. Chronographe compteur repetition à minutes. Frosted gilt movement, 36 jewels, straight-line lever escapement, cut bimetallic compensation balance, blued steel Breguet balance spring, index regulator, repeating on gongs activated by a slide on the band. Gold hinged cuvette decorated with Grand Prix medals. White enamel dial with painted Breguet numerals, outer minute track, outermost fifths of a second divisions and Arabic five second numerals, subsidiary seconds and 30 minute register dials, original gold spade hands. Polished case, button at 2 o’clock for the chronograph. Dial, case and movement signed.
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Diameter: 55 mm
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Signed: Longines