You will need to note how big the watch is.  If the watch is very loose, you will have to remove lots of links. If the watch is just slightly loose and you aren't in danger of it falling off, you might consider leaving it as is unless it is bothersome. If your watch is too small, you will have to buy extra links from the manufacturer to make the band larger. There are several things you will need to adjust your watch band.  You will need one or two push pins. You will use these to push the pins that hold the links together out of their holes. Get a pair of needle nosed pliers to help you remove the pins. You will need a small jewelry hammer. Make sure you are working on a flat surface with good lighting. You will need to collect any pins you remove from the band.
ارتدِ الساعة على معصمك دون محاولة ضبط قياسها. قم بتجميع أدواتك.