WatchLocker - #ThrowBackThursday SEIKO UC-3000 MEMO-DIARY This is a 1st Generation "Smart Watch" (or "Computer Watch" as they were known then) from around 1985. | Facebook
Seiko UC-3000 – My Retro Watches
Seiko UC-3000 for C$574 for sale from a Private Seller on Chrono24
Seiko Computer Watch Fun | Vintage Electronics Have Soul – The Pocket Calculator Show Website
Seiko UC-3000 watch with the UC-3100 keyboard - Album on Imgur
SEIKO] UC-3000 (Memo Diary Wrist Information System) released in 1984 : r/Watches