good question deserve a good answer, to me i would look at watch as a man's only jewelry to wear, it shows your taste, your personality, your characteristic, and sometimes your status... well that's what a watch does for the appearance if you ask me, but not everyone is a watch person and they might not know or care what watch we wear, and fake watches is around, only a watch person would notice and appreciate it, or may start a conversation with us on it and become friend eventually
for a more meaningful reason, i love watches, i appreciate fine watch-making, i enjoy looking through the exhibition caseback at the beautifully made movement, also, i enjoy wearing a piece of history on my wrist, as every watch of mine was purchased for a special reason, and there's always a great story to tell