Swiss 18K gold and enamel keyless lever watch Circa 1920

Gold and enamel open faced lever 
–
A very fine Swiss 18K yellow gold and enamel open faced keyless lever pocket watch, circa 1920. The case back with gold engraved foliage and scroll decoration over a translucent blue enamelled ground, the bezel with blue enamel sections, an engraved hinged cuvette. Translucent blue guilloché enamel dial with applied yellow gold Breguet hours, outer minute divisions and yellow gold spade hands. A gilt-brass movement, 19 jewels, straight-line lever escapement, cut-bimetallic compensation balance, blued steel Breguet balance spring. Cuvette signed, case numbered.
–
Diameter: 50 mm
–
Signed: B. Haas Neveux & Cie Geneva