It's an impossibility...
I once asked our watch repairer about this. You will find that it occurs with probably every brand that produces a quartz wristewatch. His answer- gravity. Yep. If you place the watch face down on a table-top you may find that it doesn't occur. But when the watch is on your wrist and you lift up your arm to look at the time, you may find that, between the 30 second marker and the 60 second marker, the second hand will not line up with the markers on the dial. It's annoying, but unavoidable. The second hand, though very small, STILL weighs a little bit and the stem that the second hand rests on has to work that little bit harder to power the hand around the dial. I though ti sounded improbable when he told me this, but then I thought; "Well, it's possible."
While modern watchmaking is a technological marvel, I'm sure that it's not an exact science. Also, any jarring that the watch may have encountered before it ended up on your wrist may have had something to do with it.
This is all just my 2c and I could be wrong (I probably am), but ask as many watch-makers as you can to see if there is one definitive answer to this.
teeritz