How can I get a list of watchers per component?

Hi, I know how to add “normal” watchers, and I know how to retrieve project components.
It seems though that from a component I cannot navigate my way through to the list of component watchers.
I suspect that ComponentWatchers used to be a plug-in before and hence it may not be available as API.
Does anyone know and could provide a simple snippet which does the work ?
I hope I haven’t overlooked anything.