Chosen Solution

My watch band fell off and will not stay attached to the bezel when i try to put it back on to the slot where it fits, how can i re-attach it?

There is a sprung steel shaft that keeps the band attached to the bezel. you need to find that steel shaft/ buy a new one in order to re attach the band. you may also need a tool specific to watch maintenance that looks like a very small fork with two prongs in order to reattach it completely.