I can vouch for this. The Thailand part, not the Colin Farrell part, that is.
After another dealer showing you his best wares, with the GMT Master II with the uni-directional bezel and the awful faux-faux-chronos on the Breitling Tourbillon, and another crappy, crappy cross between a deep one and an aquatimer that looks nothing like the picture in his catalogue you pointed at. Oh, and Panerais with crown guards so thin you'll cut yourself, often.
The fun wears off fairly quickly, and I found myself turning to bargain-hunting a Seiko diver and ogling gens in the fancy shops instead.
However, sure, get an MBW-alike, but don't imagine you'll get loads of bargains everywhere.