Found out a bit of useless triva today, why do we wear watches on our left wrists? It boils down to biology and habbits built up over two hunderd years reinforced by praticallty and because they are easier to manage than a pocket watch, reinforced mostly from World War 1, when I say biology, I refer to the fact that most people are right handed with only a few left handed people around, so next time your out and about, just look and you might see that most people wearing watches, have them on their left wrists