Swiss 14 carat yellow gold keyless pocket watch Circa 1918

Gold open faced lever by IWC
–
A Swiss 14 carat yellow gold keyless winding pocket watch made by International Watch Co., Schaffhausen, circa 1918. A polished case back, gilded metal cuvette, the case is made by Wyss & Cie, Bienne / Biel. A gilt metal dial with suspended Arabic numerals, outer minute track, subsidiary seconds at 6 and blued steel hands. A gilt brass movement, going barrel,  gold chatons, straight line lever escapement, cut bimetallic compensated balance with gold poising screws and blued steel hairspring with terminal curve, polished steel index regulator. Signature on the dial.
–
Diameter: 47 mm
–
Weight: 79 g
–
Signed: International Watch Co., Schaffhausen
–
Movement based on the Swiss invention patent No. 55 231, delivered on March 28, 1911, to Uhrenfabrik von J. Rauschenbach’s Erben, vormals International Watch Co., Schaffhausen, for a “Zifferblattbefestigungsvorrichtung” (Dial fixing device).