Brevet is the model name, but I'm not sure what the differences may be between the the 979, 992 and the Brevet. I'll check my serial # when I get home (I'm still @ work) and see if they are close at all - mine has Dura Ace 8 speed STI shifters.
There's a bit of 1988 frame info at
http://www.guywires.com/