Omega Quartz 1355

European Watch Clock and Jewellery Fair 1980 Bf 370B
Movement of the Omega Quartz 1355 watch (1.48 mm in thickness). Center: indicator discs. Left: quartz oscillator, battery, trimmer and integrated circuit. Right: motor and gear train which drives the discs by their peripheral toothing. (OMEGA Quartz 1355)