For new ones.... I've seen their site (en.bjwaf.com). Looks like there is some semblance of a shopping cart, but member login doesn't seem to go through https so I don't think I'd really want to buy there.

Then there is ebay.... handful of various sellers. Not really dug into any of them yet....initial pointers would be cool if you can.

For vintage ones, well, just know the bay.

Any tips/recommendations on Beijing Watch procurement?