Angels, gods, or ETs or ??? who descended, taught metalwork, enchantment, astrology, and interbred with humankind
Why “The Watchers”? Because the humans knew there were beings watching them. They knew there was beings that were more powerful and somehow different than them who were watching them. Not really being involved directly or showing themselves, but some people, especially mystics and priests, noticed them watching…. The were just watching and not being directly involved….