
Correction - you can't just use a regular Hughes module from the watches(or others) you listed, as the functions are different. E.g. the button over at 7 oclock position is for date display on all other Hughes modules that have a contact there. 3 oclock position is exclusively for setting function on those modules. And the contacts(plural) at the 3 oclock position on the original BB module work thus: pushed in you get time -button contacts contact strip embedded in plastic which runs up to 1 oclock position. Pulled you get date -button stem contacts the backside of the contact with hole in it. A very misunderstood and frustrating setup arrangement until you get your head wrapped around it.
.
To use a standard Hughes module you'd need to modify it as shown here http://www.dwf.nu/viewtopic.php?p=21458#21458
The nice think with the "hack" I propose is you never have to pull the stem, just push once for time, twice for date. And very good if you have to make a retaining clip for the button, as the prior, touchy interaction with two contacts in one location is gone. The same hack would make a Hughes user-programmable module work in a Big Block. Extremely cool!
