Swiss gold repeating split seconds chronograph Circa 1908

Open faced minute repeating lever chronograph by Vacheron & Constantin
–
A fine and rare Swiss 18 carat gold open faced minute repeating split seconds chronograph keyless lever pocket watch, circa 1908. Nickel finished jewelled lever movement, minute repeating on two gongs activated through a slide in the band. Engraved gold cuvette. White enamel dial with Breguet numerals, outer railway minute divisions, two subsidiary dials for constant seconds and 30 minute register, split seconds chronograph activated through the crown and a button in the band between 10 and 11 o’clock. Plain case, hinged case back. Case, cuvette, dial, and movement signed, case and movement numbered.
–
Diameter: 47.5 mm
–
Signed: Vacheron & Constantin Genève