You are the one who needs to define watch because you're asking the question of when a "watch" is a watch
Once you have your definition, you have your answer, and if you still don't, then your definition is insufficient. For me, this is just a question of language rather than the deep philosophical question you are implying it is.
"All of our behavior can be traced to biological events about which we have no conscious knowledge: this has always suggested that free will is an illusion."
- Sam Harris