The ideal thing is to be able to wear your watch in such a way that you can get through the normal course of the day’s activities as if the watch wasn’t there.

So you should be able to go through the day without worrying about getting the watch scratched /damaged or feeling any form of discomfort.

The easiest way to do this is to wear the watch on your non-dominant hand. For most people this is the left hand hence the assumption that the left hand is the correct hand.

So is there a correct hand to wear your watch? The answer to that question would therefore be NO! Either hand would be ideal depending on which is your own non-dominant hand