Hi Brad,
I have had good luck with ofrei. I have had a similar problem. If you follow the link and go to the bottom of the page there are two different crowns listed. The 60520 is a 6mm diameter crown and the 60251 is the 6.5mm crown. I have a Heuer diver that had the crown replaced with the aftermarket 6.5mm crown. I had the same problem with setting the hands and eventually learned that the 6.5mm is incorrect. It does not seat properly and tends keep the stem in limbo. I have since replaced it with the 6mm and have had no problems. These crowns are available in white or yellow and are identical to the original crown with the exception of being unsigned. Also, there is a guy from Thailand that has been selling NOS signed 6mm Heuer crowns on e-bay. I think he has one listed right now if you are looking for a gold one. Since I am not familiar with your watch exactly, it would help to get expert advice on which size crown you need. I hope this helps. Good luck,
Kire.

: I have a Heuer 844 automatic dive watch I
: bought in 1979 that needs a new crown. I had
: the watch repaired but the replacement crown
: does not work to set the time or date.