1/4 cable/spring-operated changeover movement with 3 melodies (Westminster, St. Michael and Whittington) on 8-bar gong (side beater), power reserve 7 days, plate dimensions 120 x 124 x 1.7 mm, pin axles (barrels) and 4 Aeterna bronze bouchons (additional wheels for striking train), Kieniramic7 solid anchor with resting escapement (Graham) and automatic anchor, front winding and safety winding stop (striking train), seconds display, striking stop and automatic night shut-off between 10.00 pm and 7.15 am.