Vintage Seiko Sign Table Memory Databank Data Bank LCD Digital Watch D409-5009 | WatchCharts
Benj Edwards on Twitter: "Seiko D409 (1983), the first mass-produced databank watch, could store 112 chars in memory. Users typed via stylus. http://t.co/x1N7qyikjh" / Twitter
Seiko D409-5010 | Liquid Crystal
This old seiko watch I found | WatchUSeek Watch Forums
Vintage 1980s Seiko Sign Table D409-5009 Memory Digital LCD Men's Watch Working | WatchCharts