The other obvious reason is that if you are right handed it is easier to make any adjustments to your watch with your right hand than to try fiddling around with the watch using your left hand. Not to feel left out – for the left handed person all of the above information simply gets reversed.
When fitting your watch it is important to get a comfortable and practical fitting so that you can easily tell the time and be able to read the watch accurately. If you are overly concerned about making sure you get this right, you could go to your local watch jeweler and the staff there will be able to assist you to get a proper and comfortable fit.

If you don’t have the resources to do this you can fit the watch yourself very easily by firstly placing the watch on your wrist but not actually strapping it yet. Most wrist watches have a strap that allows you to adjust the watch to fit your wrist. If your watch is one of these then you need to feed one end of the strap so that it goes through the buckle and then take the retainer pin and insert it into the hole. You should make sure the strap feels comfortable on your wrist at this point and that you can easily see the watch face and tell the time. The watch should be neither tight nor loose. Too tight and you will get a red mark on your arm, cut or the blood circulation or develop a rash. Too loose and you risk loosing your watch off your wrist and possibly never finding it again.

If your watch has what is known as a stretchy band then you simply place the watch band over your hand and onto your wrist and it will automatically be the right fit for you.