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SEIKO 4004 SQ 0903A QUARTZ 1975
My grandpa's Seiko [SQ 4004] , it wasn´t used since about 20 years. Is it worth to make a service or should I simply change battery and try to get the scratches
TimeZone : Watchmaking & Repair » Removing the back to get at the movements
How to for Seiko 4004 snap for case back - Watch Repairs Help & Advice - Watch Repair Talk
Rare 1975 Seiko Quartz SQ 4004 / Scratched Up Crystal & New Working Battery, Luxury, Watches on Carousell
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
1977 Seiko 4004: A 43 Year Old Quartz | WatchUSeek Watch Forums