This Alphapoc is quite similar to the 602R, both in construction and in internal structure. Most of the user interface is the same as the 602, and it can be programmed with the same software, and the same programming dongle.
As I wouldn't see too many people wearing this as a watch, I designed a small belt clip. You must remove the wrist straps with a small needle (poke it through the holes on either sides of the pagers, where the straps are attached, they're springy attachments). Here is the file: Watch pager belt clip
Those pagers can sometimes be found on UHF, but adjusted for 459MHz. Setting the Rx frequency back to 439.98750MHz works, but the antenna is highly desensitized and the PLL might not lock everytime. Here is a small guide for tuning one back on our bands.
IF and ONLY IF there is absolutely no signal being received, the PLL might not be locking. I found adjusting trimmer 5 helps, but it's very sensitive and can sometimes make matters worse!