Cuckoo Clock.

[Mark R]

Thanks Joe, it is reasonable quality insofar that the case is made of silver and it is a jeweled movement, next time I'm near a jewlers I will ask if they could recomend someone.

Lawrence.

Lawrence
sounds to me like the balance shaft or a pinion shaft, or broken main spring spring has been damaged in the blast.
Fiddly to repair
have a look here

http://www.youtube.com/watch?v=PdOuNPSVHj8.

http://www.youtube.com/watch?v=TQd-0YXqmR0

I would be inclined to find a horologist close by to have a look, not just the local jeweller.

cheers Mark