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 Watch Memory Digital Rare D409-5009 Gold Tone Working 1970s - Ruby Lane
Is it real? Seiko D409-5010 : r/Seiko
Vintage Seiko Sign Table Digital Memory Watch SILVER D409-5009 Works! Very Clean | eBay
RARE Vintage Seiko D409 5009 Side Table Digital Watch 1980s - Etsy