Lovely Emperor pendulum clock needs assembly

by Peggy
(West Linn, Oregon, USA)

My neighbor gave me a lovely Emperor hanging wallclock that appears to be walnut or cherry. The case is in great condition and about 3' tall.

It had belonged to her mother who passed away. When I got it, one chain had been removed completely (but came with the clock), another chain seems to be in the correct position and the third chain (nearest the chime)has one end that has disappeared into the works and I can't reach the short end.

The pendulum and 3 weights were removed for storage. I briefly considered removing the back to see if I could figure out where the chains are supposed to go. I'm assuming it will work when it's put back together but I don't know what I'm doing and don't want to mess it up.

Does anyone have advice as to what I should do?

Are they easy enough to figure out if I were to open it up or should I just take it to a clock repair place?

Thanks so much.