Gübelin. A fine 18K gold and enamel openface keyless lever dress watch with box

Gübelin. A fine 18K gold and enamel openface keyless lever dress watch with box
Signed E. Gübelin, Lucerne, movement no. 55'502, case no. 303'085, circa 1920
With nickel-finished lever movement, 17 jewels, bimetallic compensation balance, the gilt matte dial with Arabic numerals, blued steel moon-style hands, in circular case with finely chased leaf decorated bezel and rim, the hinged back with a painted polychrome enamel scene depicting a lake landscape and snow covered mountains, the cloudy sky with birds on translucent pastel enamel on engine-turned background, case, dial and movement signed
46 mm. diam.