Hi Dave,
I know it's been a long time since your post but I just saw it and since I haven't seen an answer I decided to take action. It seems that IWC has an internal register of stolen and lost watches (see this topic for all the details: http://www.iwc.com/forum/en/discussion/53156/).
Any situation updates? Did you manage to get the money after all?
Cheers,
Mihai