Seiko Originals: The UC-2000, A Smartwatch from 1984 – namokiMODS
My Seiko UC-2000 Wrist Computer, circa ~1984 : r/retrobattlestations
SEIKO UC-2000 LCD WRIST WATCH computer set with UC-2100 keyboard RARE VINTAGE | eBay
European Society for Computer Preservation - The Seiko UC-2100 Keyboard module, with docking area for the wrist watch module, manual, and original package. | Facebook
Seiko Originals: The UC-2000, A Smartwatch from 1984 – namokiMODS
Seiko UC-2000 Wrist Information System - Old Crap Vintage Computing