Elegant Swiss platinum plated lever with chain Circa 1950

An elegant Swiss platinum plated, irridium and diamond set open faced keyless pocket watch with detachable platinum, irridium and diamond set chain, circa 1950. Cal. 18.79 ABO, manual winding nickel lever movement, 15 jewels. Silver dial with applied Roman numerals, outer dot minute divisions, subsidiary dial for subsidiary seconds and gilt cathedral hands. Polished and brushed platinum irridium case. Case, dial and movement signed.
–