3060. Longines. A chrome plated keyless wind split seconds chronograph wristwatch converted from a pocket watch Date: Circa 1920 Movement: Jewelled Cal.19.73N manual wind Dial: White, black Arabic numeral hour markers, outer black 1/5th second divisions, subsidiary dials at 12 and 6 for seconds and 30 minute recording, blued steel spade hands, centre chronograph hand Case: Polished round, hinged back, chronograph button to crown, split seconds button to band at 11, No.2966339 Strap/Bracelet: Associated black leather Buckle/Clasp: Associated steel buckle Signed: Case, dial, movement & cuvette Size: 47mm