Vietnam is notorious for producing replica cases, dials, and parts for Rolex. I wouldn’t be surprised if they have branched out into other brands.
We've seen lots of Pole Router Sub parts such as dials and handsets from Vietnam appear on the bay from time to time.
It makes you wonder; if they were able to provide the wherewithal to appear to ship from Italy, how many of us would they reel in? **shudder**