I have an '85 Falcon Triathlon 105 with 1st gen 105 group, there was also a Triathlon 600.
Mine is like the red one of rbman, 531 main/fork, love it, is really light and fast, I upped it to 7 speed brifters.
There's been one on ebay for a while with Exage, looks a little more flashier with the decaling.