A week ago, I came across a water one at Carol's Watch (TST).
If buying online, you could find some at yahoo hk auction site.
I don't have any connection with any of the above.
I bought from shops and online.
Need to do some homework about the watches before either buying online or shops.
For watch with a display back like 112, it's easier to distinguish.
Some 2nd shops are not necessary more reliable than those selling online.
Both can sell fake ones, just be careful.
Sorry, I am not going to suggest any specific online seller here online.Do some search at yahoo, ebay, hk discuss trade forum, gmt8, and paneristi, and come back here if you like to discuss particular target.
Purchasing water goods and 2nd hand watches need some study and experience, calculate the risk,
inspect the watch and close the deal. Risks involved fake, pre-owned, changing parts, reported stolen, etc.
It is of the same class technically as rolex, but somehow I still think the latter is more reliable, haha.And yes, I admit I like only the stylish outfit of panerai.