Thinner people or people with large or protruding wrist bones find it much more comfortable to wear a wrist watch face down so that the largest part of the watch (the face) is not bruising and scraping their wrist bones all day.
That's how they wear it in the army, so men can check the time while holding their rifle. I think that is why it is fashionable.
Usually on your wrist, but people wear watch chains on their belts or in their pockets for pocket watches, they make keychain watches, armband watches, and even finger/ring watches.
Fairly easily!
People point to their wrist because that is where people wore wrist watches. Many people wear wrist watches, but many do not since cell phones have taken over the time-keeping function. It would not be surprising that some folks would not understand where the gesture originated.
A wristwatch is usually worn on the wrist that will get the least exposure to water and other spills, knocks and scratches and other damage. For a right handed person that would be the left wrist. Since most people are right handed, most watches are worn on the left wrist. Left handed people tend to wear theirs on their right wrist.
Men don't usually wear necklaces to events. Wrist watches say much more and have more class.
Not much compared to people who don't wear watches.
It doesn't really matter. It depends upon one's comfort.
Typically a man wears a watch on the wrist opposite his writing hand; so a right-handed man would wear a watch on his left wrist. To balance, this man would wear the bracelet on the right wrist, or perhaps not wear the bracelet at all.
In the 16th century pocket watches were popular for men to wear. It was more of a fad. It wasn't until world war 1 wristwatches became popular. They were called trench watches and were worn by men in the military.
A man normally wears his wristwatch on his non-dominant arm. That is, if he is left-handed, he wears his watch on his right wrist; if he is right-handed, the left wrist. However, since many watches are designed to be worn on the left wrist, some left-handed men wear their watches on the left.
Not much compared to people who don't wear watches.
I assume they are watches that you would wear around your ankle rather than your wrist. They are a watch you wear around your ankle. I sometimes wear a watch around my ankle as a piece of unusual jewellery. Not very practical, but I love the way it looks and feels so I have a few watches for my ankle now.