1966 Seiko 6218-8971 Seikomatic “Weekdater” 35j Day/Date (Crown/Dolphin),A minor aristocrat: The Seikomatic 6218-8950 | Adventures in Amateur Watch Fettling,Seiko Seikomatic 6218-8950 from 1965 (Vertically Brushed Variant) – Paleh,A minor aristocrat: The Seikomatic 6218-8950 | Adventures in Amateur Watch Fettling,6218-8950] Seikomatic 35j Dolphin King - My first vintage watch : r/Seiko