Although 1:1 should mean exact copy in all respects but of course it doesn't in real life. 1:1 equals gen. Let's face it this type of somewhat misleading advertising exists in the legitimate world as well. When I read 1:1 in a rep advertisement I don't expect it to be truly identical. But at a minimum I do expect the watch to have precise case measurements and reasonably close case finishing, same functionality, correct dial and hand color, proper placement and sizing of sub-dials, crown, pushers, etc.