No way would I buy anything like that which ever belonged to someone else. I'd buy a second hand watch, but no way would I buy something that was only ever meant for some other person and now they are selling it. Would like if someone sold a gift you gave to them? If my GF sold our engagement ring, I'd be disgusted and even more disgusted with the person who buys it (lthough thats not likely as I've no intention of getting engaged to her anyhow!!)