Cuckoo Clock Weight 12.5 Ounce 350 Gram For 1 Day Movement 30 Hour Regula 25

This is a very popular weight size used with 30 hour (1 day - the clock is wound on a daily basis) Regula 25 cuckoo clock movements.  Will also work with other brands.  Typically used on 1 day - 2 or 3 weight cuckoo clocks, typically cuckoo clocks with animation (moving figures).