Your watch metaphor is incredibly stupid, stop trying to use it. Maybe if you educated yourself on some of the accepted theories that explain how life would have begun on earth you wouldn't be so ignorant as to say "if i drop a watch, i doesn't just come together" haha wow. Logically, if you look at the history of science, and the history of religion, slowly science has been chipping away at what was generally accepted as something attributed to "God". Of course, we don't know everything yet, but with all of the evidence a rational mind should be able to deduce that that is all it is, that we don't know yet, not that it must be god.
Research has been able to demonstrate a strong basis for the idea that certain reactions in space could create molecules advanced enough for life to begin to evolve, remember, this is a process that takes billions of years. I guess it makes sense that God would have created earth, left it uninhabited for a few billions of years, slowly using his ultimate power to expose small creatures to earth over time, then putting dinosaurs on earth, killing them with a meteor, starting the process over again, and then allowing primitive humans to roam the earth for 100,000 years, before allowing us to be modern, which lead into a history of a race that has tendencies to violence, evident in our nonstop history of war (funny enough, likely attributed to evolution). All of this, because God loves us! What a guy!
Does it make any more sense that "God", the perfect and ultimate being, would have created humanity? In a universe with over a trillion planets? Just to instill us with choice.. right... that makes total sense, and of course you forget the inherent logical fallacy in your argument about where everything comes from, which is that God must have come from somewhere, and funny enough.. most religious people will readily accept the fact that God is too "complex" for us to understand his roots... wow, go figure.
There is a reason that atheism is generally accepted in scientific communities around the world, with the exception of course, of a few American scholars.