I had no idea that TI made watches...I now must acquire one!
They do, however, make the best calculator in the history of calculators - the TI84. I will fight you on this
I only used a TI-83 in high school, but I'm willing to cede you that. I never used a TI-84- I was too poor.
As for TI making watches, I only know that my dad owned that very watch when he was in high school, in the late seventies or early eighties. So it's a bit of a relic, and it's likely that their watch line died out sometime in the past 3 ½ decades.
I had an idea for some pictures based on a random theory of mine about some GKC characters and some astrology, so I went searching for inspiration (aka things to copy bits of) and found this. Do we know this person? :-) Well, if she had purple hair, anyway. aww, so sweet. hellobaby.deviantart.com/art/Taurus-174647627