1/4 cable/key wind movement with pendulum, Westminster chime on 8-rod gong, run time 7 days, plate size 131 x 131 x 2,0 mm, 4 Aeterna bronce bushings (2nd wheel chime/strike), pallet anchor with stationary escapement (Graham) and automatic beat adjustment, second indication, chime shut-off and automatic night time shut-off between 10.00 PM and 7.15 AM.