Spring-wound movement with Bim-Bam 1/2-hour strike on diamond-turned double bells, running time 7 days, plate dimensions 114 x 99 x 2.0 mm, 4 Aeterna bronze bouchons (accessory wheels), front winding and safety winding stop, Kieniramic7 solid lever with resting escapement (Graham) and automatic lever, front winding with safety winding stop, seconds display, strike cut-off and automatic night cut-off between 22.00 and 7.00 clock.