You're fine with Tange Ultimate Ultralight. The three types of Ultimate were jointly the top of the Tange range. I don't know how much more expensive it was than the basic Prestige, but a fair bit I think. Even the basic Tange Prestige was a high-quality heat-treated tubeset, so we're talking about better than good.
Note that the sticker is a Saracen sticker, not the normal Tange Ultimate sticker. Nevertheless I think you can rely on it that the sticker is a true reflection of what you have - they would be breaking the Trades Description Act otherwise. I can only guess that they decided to upgrade the frames at some point in the 1994 model year. Possibly Prestige was in short supply? Maybe something like that.
Note that the sticker is a Saracen sticker, not the normal Tange Ultimate sticker. Nevertheless I think you can rely on it that the sticker is a true reflection of what you have - they would be breaking the Trades Description Act otherwise. I can only guess that they decided to upgrade the frames at some point in the 1994 model year. Possibly Prestige was in short supply? Maybe something like that.