Really surprised no one has mentioned Urban Gentry's friend, Federico, of Federico Talks Watches. I actually don't watch too many watch channels, but this is the one channel where I literally decided to watch ALL of his videos from the very beginning. He's relatively new, so it wasn't that difficult.
Very knowledgable and humble individual, with guest appearances from other Youtube watch guys.
https://www.youtube.com/channel/UCH27JDu8g6tPDIjDikVGPogClick to expand...