3112. Omega for Technicum Cantonal, Bienne. A stainless steel keyless wind open face chronograph pocket watch Date: Circa 1940 Movement: Jewelled Omega Cal.39 CHRO, No.7722 Dial: Two-tone silvered, black baton hour markers, Arabic numeral 3 and 9, black outer 1/5th second divisions, subsidiary dials at 12 and 6 for 30 minute recording and seconds, blued steel leaf hands, centre chronograph hand Case: Brushed and polished round, snap on back, chronograph button to crown, No.10123 Signed: Movement signed Omega, dial signed Technicum Cantonal Size: 47mm