IS the Breitling still borked? There are plenty of places to get spares for it. Even if not available new, you could check out somewhere like Fellows, which does a monthly auction of dead-ish watches and recovered parts.
In fact, if you could give the exact model number, and four digits that may (or may not) be stamped between the lugs, it would probably be quite easy to get it fixed. I see it's already been opened without much care and attention, though.