question about german
In the sentence "Wie gefällt dir meine neue Uhr". Is "meine neue Uhr" akkusativ or nominativ?
So the question has already been answered, but here's one other way to think about it.
If "meine neue Uhr" were accusative, what's the subject of gefallen?
When you're trying to parse a sentence (in any language), the easiest thing to start with, often, is to identify the verb and its subject.