do these watches have a band that can be...
do these watches have a band that can be changed by the owner? or do I have to mail it in to the factory?
Yes. That small Phillips screw visible on the band is how the band attaches. There are four, and they unscrew and the band slides out. The bands can be changed with a small jewelers screwdriver, but only Casio specific bands fit as replacements. Meaning this band is only able to be replaced with the same band, and not a different style without strap adapaters.