This just arrived Friday afternoon!
Casio DBC-611-1VT Databank Telememo calculator watch from Casio's Vintage Collection. These were originally made in the late 1980s and early 1990s. I had a black one when I was in high school in the early 90s, but I lost it in 1994.
This reissue is similar, but has a slightly different display layout. They didn't make the reissue in black, only in silver or gold. My original black one came on a black rubber band. The silver reissue came with a silver stainless steel bracelet that is a bit long for my skinny wrists, even when adjusted; so I replaced it with a black leather band. This takes 22mm bands.
These watches were the original 'smartwatches.' They have a lot of functions: calculator, telephone number database, stopwatch, multiple alarms, and dual time zone timekeeping. It can display in a bunch of languages.
What's crazy is that I paid less for the reissue than my original cost me back in the early 90s! I paid $55 for my original, and the new one was $50 on Amazon!