Vintage Seiko D409-500B Digital Databank Watch - Etsy
Just got my hands on a vintage [D409-5000] Seiko memory watch. This beauties a bit beat up yet fully functional. But I haven't been able to find a single manual online regarding
Seiko D409-5000 Rare Digital Memory Watch Quartz Mens Watch Authentic Working | eBay
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
DWF - The Digital Watch Forum • View topic - Seiko D409-5000 (time table) 1986
Seiko D409-5000 Rare Digital Memory Watch Quartz Mens Watch Authentic Working | eBay
Seiko d409-5000 80's Original, Steel Case, Working Perfect, Made in Japan | WatchCharts