When me and 2 of my best watch buddies owned 5712/1A at the same time we compared them side by side and there are differences, as what you've mentioned here.
If I'm not mistaken that time was a 2006 , 2010 and 2013 piece. A have slight difference in dial color. And there was a small difference in moonphase finish, one being polished and other being matte. I still need to find the photo I took before, let's see if I can find it
Thanks again for such a great reference point post Marco!
Sam