Yes, their prices are in RMB, but be careful when making the conversion. An industry standard is for a company to use their own conversion rates, which are generally poorer for the buyer. WS prices are still very competitive, though. Just don't expect after-sale service, because there isn't any. Check your QC pics very carefully!!! That being said, I've used them a few times and have been very happy with them.
They are, and have always been, the wholesale section of PT. Any watch that PT sells, WS can source.
Hope that helps