Mechanical clock parts with parts from Herald, Welby Corpoation Germany, Doddo? etc

Mechanical clock parts with parts from Europe mostly German, France, England by companies likes Herald, Welby Corpoation Germany, E. Sch Meckenbecher, G M ANGEM, Doddo? Waterbury clock Co, Ubert Herr, Egula,

Hermle Clicks, A Sterling electrical device from Somerset England. A Music box movement which must been animated people in it as well. Mecanno gears as well.

I'm not a clock repair and this a project with used spare parts. Anyone ever use these parts?