My $4.00 solution:
My crystal self destructed several months ago also...Since I don't have any "self loathing" instincts, I don't buy anything from Dsn, so I looked around for a simple, cheap, permanent, solution...Acrylic !!
Found a very acceptable 40mm acrylic pocket watch on O.Frei's website for $4.00....Snapped right into my bezel with a very tiny amount of work on the edge (it is actually 40.3 mm, and needs to be reduced to 40 mm to just "snap in")...
It is slightly less domed than the original, but I find it quite acceptable, especially in light of the fact that if it gets scratched, I can buff it out in a minute...And I doubt I'll live long enough to worry about it turning yellow with age!!