Traditionally, wristwatches are worn on the left hand. But why is this so? And do I make a fool of myself if I prefer to wear my watch on the right hand? No, absolutely not. Wearing the watch on the left hand has become a "tradition" because it is more comfortable for most people to wear the watch on the non-dominant hand. I.e. most right-handed people find it more comfortable to wear the watch on their left hand. And since there are more right- than left-handed people, wearing the watch on the left hand has become the standard. In fact you should wear your watch the way it feels best for you. Are you right-handed and prefer to wear your watch on the right hand? Then go for it! Much more important for your overall appearance is with which clothes you combine the watch. With the right choice of outfit, you can show off your watch perfectly.
Conclusion: it doesn't matter if you wear your watch on the right or left hand, it must feel good for you!