swiss or Japanese movement

[cavi]

okay, this probably has been covered, but I will ask anyway.  Sorry.   I notice that with the replicas, many sites offer either a japanese movement that usually runs in the 200 range or a swiss movemnet that pushes it to the 600 range.  Some even state that with the japanese versions the chronograph does not work.

So, what is reality here?  And could I get a couple of names of relatively trusted sites?

Also, how long does delivery typically take?