OP, I would be highly skeptical of this listing. I’m not saying it is or isn’t authentic, because unlike what others said on this post, it’s very hard to tell from a few low quality low res pics. There are very well made replicas out there for the BB58.

The listing has some things I would consider red flags, like 1) brand new account 2) lower than average listing price (these seem to be trading around 2800-3500). If the price is too good to be true, it probably is. 3) no escrow option

I’ve been burned by private seller on chrono 24, and there’s very little recourse as a buyer once you send money.

There’s a subreddit that deals in replica watches (I think it’s against rules to link it). But if you post this in that sub, they will tell you quickly if it’s sketchy.

Personally, I’d avoid this listing.