Social convention dictates that you wear your watch on your left wrist, although you are free to wear it on whatever wrist you want. There is, nevertheless, a compelling argument for wearing a watch on the left wrist. We had to wind our watches in the days before quartz or automated watches. Using our dominant hand made this much easy. Right-handed people account for around 90% of the world's population. As a result, wearing a watch on the left wrist seems sensible. The buttons on most timepieces are still on the right-hand side of the case nowadays.
Wearing a watch with a large face is not a good idea. Select the wrist that is most comfortable for you and where your watch will not obstruct your motions. It may be unpleasant to write on a watch that is worn under your wrist. A non-dominant hand should never be used to wear a watch.
Wear a watch with a small face. Choose a wrist that is most comfortable for you and where your watch will not obstruct your motions. It may be difficult to write on a watch that is worn under your wrist. A non-dominant hand should never be used to wear a watch.
 

Some prefer to wear the watches inside the wrist according to their convenience of work. There is no particular rule or regulation that one should wear outside the wrist as most people often do.

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