Unfortunately Fairchild modules belong to the least reliable ones AND they are used in a fair number of expensive high-end watches. For example I have a Tiffany & Co solid gold Ladies watch with a Fairchild module that usually just "goes nuts" (So even if they are not broken "beyond repair" they may be a pain).
Even if you could get an expensive Fairchild based replacement I would not recommend it because it is likely it will fail sooner or later. Someone correct me if they have different experiences but most Fairchild based watches i had had either a dead module or failed later on.
Well if you are still being persistant i suggest you take some photos, measure the module and describe where the buttons are (e.g."Buttons at 2 and 4 o'clock"), that might help.