I have never bought a pre-owned but I am open to the idea.
However, one thing that really scare me is paying for a high priced replica.
I went to shop in Subang Jaya and asked for a Rolex Lady DateJust, unfortunately it does not come with docs. Aiya.... the watch looks nice but me feel to risky.
All typical judgement aside about how people keep important docs, but I still have my ori docs (since 1997) for my Rolex 16233 and furthermore I've just serviced it, the RSC do furnish a small international service guarantee card stating the model# & SN#.
Having that small card do help in giving some form of confidence of what I'm about to buy. In the meantime, still looking...
Peace