1977 Seiko 4004: A 43 Year Old Quartz | WatchUSeek Watch Forums
Help needed Seiko 4004 [4004] [0903-8159]. Friend of mine personally bought in 1977. Intermittently runs after new battery. Searching for a video of movement breakdown and cleaning. : r/Seiko
The Simple Pleasure of Seiko Vintage Quartz - A Primer in Five Watches - The Time Bum