Sorry to bump this thread, but since it's the same topic, just got a question about where the bracelet's clasp should sit underneath the wrist ?

I was browsing through the internet and came upon the position of the bracelet under the wrist, some say it should sit right at the dead center under the wrist, some say it depends on the wrist size, links, the fit and comfortability and so on. I also have no idea what 12 o clock or 6 o clock means.

Then I look at my wrist where my bracelet is sitting under my wrist, the bracelet is sitting slightly over to the left side of my wrist ( the side where my pinky is on my right hand ), the fit is good and comfortable after the AD adjusted according to my wrist, but the clasp is not sitting in the dead center under the wrist, should it be sitting at the center ?