What questions are you asking when buying used on TRF?

[Fellationship]

Let's assume the seller is well known and has references.
What questions about the watch should I be asking when I am not able to physically inspect the watch?

I've ask for additional pictures (close up images) of damages/scratches/dents and seller assures me the watch is in full working order.
Most of the details about the watch are in the posting from seller, but i'm wondering if there's other things I should consider (not advertised) when buying preowned?