Changing the Frequency in the Beepwear pager watch isn't very difficult, the Beepwear uses the same crystal
style and package as an Advisor Gold(and a 17.9 Mhz IF), there are 2 tuning points accessible from the outside of the watch.
There are 4 rubber plugs on the back of the watch that can be removed, the lower left is test point M1, the upper left is an AGC test point, the top hole is a variable cap that peaks the antenna and the right most hole contains another variable cap that peaks the receive frequency. I have not yet tuned my beepwear watch as I am waiting for access to a screen room, it does however receive extremely well having nothing more then the crystal changed. (I went from 931.7375 to 929.2875). I am not yet sure what the purpose of the AGC test point is, if anyone knows please tell me. There is also a variable resistor that is not accessable unless the watch is removed from its casing. 
If you do decide to take the Beepwear apart be extremely careful to not loose the extremely small gold springs that go between the back casing and the main PCB. I will add more and hopefully format this
page further as time permits. Any questions, comments or information regarding the Beepwear can be sent to me at
beepwear@beeped.com. 
Well I did some work towards tuning the beepwear, I've pushed every button combination I can think of until it goes into the low battery mode and haven't found a test mode. If anyone finds one please let me know. To tune the pager onto frequency I used a service monitor tuned to the receive frequency minus the IF (929.2875-17.9=911.3875), I tuned the freq cap until it was bang on, of course this tuning method assumes that 17.9 Mhz crystal is on frequency :) I was hoping maybe the beepwear would keep the receiver on while in the programming cradle but it didn't(the programming cradle uses different pads for powering the watch) I will contact my source and ask about a test mode but I'm running out of favours...until then may we all dream of a synth model...