How To easily resize, Adjust a robust metal band (Gavox Squadron)

Don't know why but I like this generic music what is it called? And by the way any plans on making a more true to size pilot watch more like 46-48 squadron variant ?

How can I remove the screws that hold the end links in place? I want to change the bracelet to leather but I can't seem to be able to remove the end links.

Normally I dont like "mute" videos but the gestural communication is spot on