Non-Hacking 1980s Tudor Oyster Date Day+Date?

[Bulgogi352]

First, I just want to say I'm happy to have found this site and am pleased to be a new member.

My question is whether Tudor made the Oyster Prince Date+Day with a non-hacking movement in the 1980s? I just purchased one at a local jeweler's shop and it sure looks legit but I noticed that it's movement doesn't hack, which doesn't seem right for the model I believe I have. From what I can tell, it's a Reference 94500 and should therefore have an ETA2834 movement? But I could be off on the year. Sorry - struggling to post a picture because of the rules on size and dimension of portable jpegs. Will try to figure that out and post a picture if it would help.

[offrdmania]

Im not 100% sure about that caliber but if that movement has a balance stop then it may be broken and why it isnt hacking