IWC (INTERNATIONAL WATCH CO). A ROSE GOLD FILLED MANUAL WIND WRISTWATCH. Date: Circa 1940's. Serial number: 1444436. Movement: Signed, cal.70, manual (Rare, only 4500 produced between 1945-46). Dial: Signed gilt-tone, gilt numerals, gilt sword hands. Case: IWC signed, rose gold filled (40 microns). Strap: Leather, IWC signed clasp. Size: 34mm.