The Seiko UC-2000 was basically the OG smartwatch before smartwatches were even a thing. Dropped in 1984, this beast wasn’t just a digital watch—it was a full-blown wrist computer that could run programs, store data, and even connect to a keyboard (yep, a full-sized one) for real-time input. It was an upgrade from the UC-1000 and UC-3000 models, pushing the boundaries of what tech on your wrist could actually do. The screen was tiny, but it got the job done—96x32 pixels of pure productivity. You had to load software and transfer data using infrared or by plugging it into Seiko’s dedicated terminal. It was wild for its time—basically, if you were wearing this in the mid-’80s, you were either a total tech nerd or 20 years ahead of everyone else.