As rare as hen's teeth and a collectors dream, especially when all working correctly and above all- available!!
Seiko launched this in 1984 as the first watch with a database on it. It has an LCD dot matrix display that runs like a tickertape on the watch, from left to right.
The watch is programmable by using the plug on controller, the UC2100.
Only available in 1984 and 1985, 200,000 units were sold, but not many have survived.
This is a pre-owned watch, as most of these are and has a few very small handling markson the case, the LCD is as crisp as the day it was made and all functions are working correctly.
A manual, written by the enthusiast Guillaume Tello in 2008 can be found here-
Size watch 35x45x10mm deep