ETA 2824-2 MECHANICAL WATCH MOVEMENT AUTOMATIC WINDING - YouTube
11½´´´ H 4,6 mm Ø 25,60 mm Hours, minutes, sweep second. Self-winding mechanism with ball bearing. Date, corrector. Stop second device. Regulator system ETACHRON and regulator corrector. 28.800 vibrations per hour; 4 Hz. 25 Jewels....