The majority rule is to wear your watch on the opposite wrist from your dominant hand. For three-quarters or more of the world, the right hand is dominant. Those people would wear their watch on the left wrist.
Simply so, is it OK to wear watch on right hand?
Nothing, its up to you. Although majority of people wear watches on left wrist, some people also wear it on right hand too. As majority of people are right handed and do majority of work with right hand its easy for them to wear watches on the left wrist as they feel it may be damaged.
Also Know, does it matter what wrist you wear your Apple watch on?
Apple Watch works whether you wear it on your left or right wrist, and it does so by rotating the screen to be the correct side up for you. In either case, Apple's preferred way of your wearing it has the Digital Crown on the side of the watch nearest the top of your wrist.
Should you wear watch on right or left?
The general rule of thumb is to wear your watch on your non-dominant hand. So, if you're right-handed, wear your watch on your left. And, if you're left handed, wear your watch on your right.
Why do soldiers wear watches backwards?
They began wearing their watches on the inside of the wrist and soon realised that they were less likely to be damaged than when worn conventionally. And one of the most logical explanations, important for soldiers is that moonlight or sunlight can reflect off your watch's crystal. It's shiny and easy to see.