Should I be worried?

[sandalgirl]

After spending much time "lurking" about on this forum, I finally went ahead and purchased a pre-owned Ladies DateJust model 69163 from a local, trusted jeweler. The watch had no papers or boxes. The jeweler popped off the bracelet to show me the serial numbers and provided me with the serial # info on the receipt. D028 and a number beginning with 9HTxxxx. She said my watch is circa 1991. It has "original Rolex design" and "Stainless Steel" on the case back...indicative of a watch made pre-mid 1990's *thank you Rolex forum members for that info* But here is what concerns me: the D028 seems to indicate a watch made in 2004-05. I know that the Rolex date/numbering system can be confusing because Rolex used letters concurrently but I think there is a huge difference between the case back info and the actual serial #. The face of the watch is a pearl color, has stick numerals, smooth gold bezel and 2 tone jubilee band. The number on the band corresponds, according to the serial #, to a two-tone 18k band. I will go back to the jeweler tomorrow and express my concern---but before I do, I wonder if any of you think I have something to be concerned about. Trying to decipher the Rolex serial number dating code is confounding. I didn't think it was appropriate to post the entire serial number on this public posting, but will gladly do so via pm if anyone thinks they can shed some light on this. Btw: I am simultaneously elated when I look at my wrist, and then a little sickened thinking this isn't the read deal. Thanks to anyone who reads this and has some insight. Donna