Second hand Tudor, need advice please!

[shabufux]

Hi there, so I've had a couple of second hand purchases in the past, but nothing from Tudor.

I've approached an online seller over a Tudor Hydronaught prince date. The seller is a woman who says she was given this by her ex-boyfriend who she no longer wants any attachments to, she has the extra links for the bracelet but claims that she does not have the box or papers. My issues are, is this something i should purchase if the price is right? How may i know if this is stolen or not? From the pictures attached (sorry for the poor quality), is this fully authentic?

Id love to hear your personal opinions and thoughts, thanks!