Just be sure to get the case with the F520117 serial number and you should be safe. They come from what is known as the "Noob factory". Seems to be the best "out of the box" case so far. You'll find Submariners, GMT's, Daytonas etc with this same serial number on them. The asian Noob has a closer to gen rehaut of 1.9mm as opposed to the 1.8mm rehaut on the ETA. The Asian movement is supposed to be pretty good anyways so if you are looking for the "most correct" looking version then go for the Asian version for $100
Lonnie
edit to clarify: ETA rehaut 1.8mm asian rehaut 1.9mm gen rehaut 2.0mm