![The comfort of familiarity: A Seiko Sea Lion Weekdater from 1966 | Adventures in Amateur Watch Fettling The comfort of familiarity: A Seiko Sea Lion Weekdater from 1966 | Adventures in Amateur Watch Fettling](https://adventuresinamateurwatchfettling.files.wordpress.com/2017/04/seiko-6206-weekdater-dial.jpg)
The comfort of familiarity: A Seiko Sea Lion Weekdater from 1966 | Adventures in Amateur Watch Fettling
1964 Seiko Sealion Self Dater M55 Automatic Watch| Seikomatic Seikosha Caliber 6205B 24 Jewel Date Movement | 36mm Dark Gray Sunburst Dial | Japan Made, Men's Fashion, Watches & Accessories, Watches on Carousell
![The comfort of familiarity: A Seiko Sea Lion Weekdater from 1966 | Adventures in Amateur Watch Fettling The comfort of familiarity: A Seiko Sea Lion Weekdater from 1966 | Adventures in Amateur Watch Fettling](https://adventuresinamateurwatchfettling.files.wordpress.com/2017/04/weekdater-steel-case.jpg)
The comfort of familiarity: A Seiko Sea Lion Weekdater from 1966 | Adventures in Amateur Watch Fettling
![The comfort of familiarity: A Seiko Sea Lion Weekdater from 1966 | Adventures in Amateur Watch Fettling The comfort of familiarity: A Seiko Sea Lion Weekdater from 1966 | Adventures in Amateur Watch Fettling](https://adventuresinamateurwatchfettling.files.wordpress.com/2017/04/weekdate-26-jewels.jpg)