This is a very interesting discussion. There are two images posted in the thread with lines drawn across the length of the second hand. One appears to show a bent second hand; the other appears to show a straight hand. IMO, at the very least that apparent difference in the two examples should undermine the certainty with which a couple of the posters have expressed their opinions.
After examining an actual watch I have concluded that, at least on that piece, the second hand is fine.
With all due respect to you, Bart1, I suggest that someone of your experience might be cautious about making generalized statements about your tentative conclusions without first taking the time to examine one actual piece, or better more than one, rather than relying on an image of uncertain controlled conditions.