In the series or in general game play. I am a bit confused. I feel like I got a basic understanding... It is used to summon these guys right? Like the capture/carer?
From what I can tell and I'm no expert btw, the watch lets you know when a Yokai is near. There's also a looking glass attached that you can look through to see Yokai with, I believe you can only see the Yokai through the looking glass. I think the watch also stores the Yokai.
