Since people are asking about MBW, MBK and stuff, I'll say it again:
MBW (Maria's Best Watch) is the name of a dealer which hasn't existed in years. There is no "new MBW" .. Maria was the first dealer to discover the reps which bear his name, much like we call the Planet Ocean replica that dealer Narikaa discovered the "POrikaa". Interestingly enough, Narikaa also discovered the NoobFactory Submariner, but we don't call that the NoobMarikaa.
I don't know what Maria looked like, but since that is a very German name, let's use a photo of the average German guy:
MBK (The Mall of Everything) is the abbreviated name of the shopping mall in Bangkok where you can buy the watches people call "MBW" and "MBK". The two names mean the same thing.
This is a picture of it:
NahPiek is the name of the store in the MBK shopping mall which deals with the factory that produces the MBK replicas. The man (Pee Chai) in NaPiek who sourced the reps from the factory died last year, and I suppose his siblings are trying to fill his shoes currently. If you go there, they will only have junk on display. You have to convince them to show you the "good stuff."
This is Nah Piek: