Some Rolex replicas are more accurate than ever and very difficult to tell from the real thing, replicas now a days have a smooth sweeping hand just like a real one thanks to a self winding automatic movement, replicas now have all the appropriate serial numbers and markings on the case and band,
the font on the dial (face of the watch) is computer printed and just as sharp as the real thing, replica Rolex watches even have the micro etched crown on the glass above the six o'clock marker and is barely visible to the naked eye just like the real thing, even the hologram sticker on the back is now very accurate
How do I know all this stuff?
I'm a member of a forum that discusses replica watches.
http://replica-watch.info/
And just so you know, we are not watch dealers and are not trying to sell you anything, we just enjoy talking about replica watches of all kinds, how to tell what a good one looks like and most importantly how to avoid overpaying and getting an inferior watch.