Swiss 18k gold minute repeater with chronograph Circa 1919

Gold hunting cased lever pocket watch
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A very fine and rare Swiss 18k gold hunting cased, keyless, minute repeating pocket watch, circa 1919. With chronograph and 30- minute register by Vacheron & Constantin, Genève. Hinged gold cuvette. White enamel dial with Dauphine numerals, outer minute track with 1/5th seconds chronograph divisions, Arabic five minute/seconds numerals, 30-minute register dial at 12, subsidiary seconds dial at 6. Gold spade hands. Frosted gilt movement, bar caliber, 35 jewels, counterpoised straight line lever escapement, cut-bimetallic compensation balance with blued steel Breguet balance spring, swan-neck micrometric regulator, repeating on gongs activated by a slide in the band. With fitted box. Dial, case and movement signed.
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Diameter: 55 mm
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Signed: Vacheron & Constantin  Genève