8 Day Cuckoo Clocks need to be wound by pulling up the weights every 8 days.  The cuckoo calls once on the half hour and the full hour on the hour.  All our cuckoo clocks have a night shut-off switch. All our cuckoo clocks are made individually, so each clock will be slightly different from the picture, and all clock dimensions are approximate.  Weights and pendulums are sometimes not shown in pictures but are included with all clocks. All our cuckoo clocks are made from wood in German Black Forest.