Hi. My name’s John. I’m from www.thewatchhut.co.uk Today I’m going to show you how to adjust a Casio watches sliding clasp. We have had quite a few emails and requests to find out how this is done. So I’m going to show you. First of all we need to find something of a similar size to this watch tool. Go to the clasp, note where the arrow is Place the implement in to the hole and lift. Now you can move the clasp up and down. When you are happy it’s in the right place you press down, hard on the clasp. so now, that watch is adjusted.