The 'scratches' over the date window look more like dust on the inside of the crystal. Since these watches are never assembled in clean-room environments, you should not expect to see the same degree of cleanliness & quality that even the average Swatch or Timex receives. Small bits of debris & dust in rep watches are inevitable & I would not expect the collector to see or remove these (just my opinion). If it bothers you (it would bother me), find a local watchmaker who works on reps & let him deal with it (you might also have him service the movement, since most reps contain used or unserviced movements). Just be sure to inspect the watch carefully in the watchmaker's shop before you leave. Even under the best of conditions, it is difficult to see/remove ALL dust & you are going to be more critical than the watchmaker will be.
As far as the second hand goes, I have to disagree with most of the previous conclusions -- I do not think the hand is damaged or missing paint. It looks more like there is a speck of dust or debris on it, which, again, is quite typical when the watch is not assembled under the cleanest of conditions (rep watches are often assembled in peoples' homes). And as with the dust, any watchmaker should be able to determine exactly what it is.