How are manufactured ?

schaublin 102 pendolo caruso

Here you'll find some interesting link describing the pendulum main clock's parts construction :

Pendole R.Caruso Cycloidal gears

Gears

clock dials - pendole R.Caruso

Dials

blue hands - pendole R.Caruso

Blue hands

clocks cases - pendole R.Caruso

Cases

https://sites.google.com/site/cronoregolatore/how-to-do-it/escapement-wheel

Escapement wheel

Movement