Yes, as is non-hacking and non quick-set date. Those modern conveniences are a pain to live without, especially for daily wear. .
I have two 6542s, one an ETA 2846 and the other a DG3804B. Both rum remarkably accurate. The ETA is non-hacking, but is the current mod with adjustable GMT hand and quick-set date. The DG is hacking, and all the rest. Both are slow-beat. I wear the DG daily.
Everyone chooses for themselves just how realistic they want their watch to be. For me, I have no intent to sell my watches, or try to pass them off as genuine to anyone who asks (no one asks). And as I've said before, the only one who gets close enough to see if my watch is hacking, quick-set or GMT adjustable is not there to look at my watch. At that point thank goodness she is there for other reasons. It only matters to the owner of the watch.