H Herr KW80/1 is a Hubert Herr " New England" 8 Day cuckoo movement with a pendulum length of 36 cm, a plate size of 85 mm by 90 mm. H Herr KW80/1 requires 2 weights of 1500 grams each and comes complete with bird rod, chains, stop rings, weight hooks & hand nuts. H Herr KW80 has 6791 BPH.