1/4 rope/spring-wound change-over movement with 3 melodies (Westminster, St. Michael & Whittington) on 9 chimes, running time 7 days, plate dimensions 131 x 131 x 2.0 mm, 4 Aeterna bronze bouchons (accessory wheels striking movements), quick-release axles and safety winding ratchet with front winding (spring barrels striking movements), pallet lever with resting escapement (Graham) and automatic lever, strike shut-off and automatic night shut-off between 22.00 and 7.15 clock.