Hi, I have  341-021 Hermle wall clock, which stops working when I assemble it in its box with its pendulum.  1. The spring is working: I removed the pallet mechanism that controls the escape wheel, and used finger to stop escape wheel, wound the key, the escape wheel spun till the whole spring was unwound.  2. Is the time between tic and toc exactly the same as between toc and tic : This I am not entirely sure off, wasn't sure why this would have changed. I tried the basic way of