![Third time lucky: A Seiko 6138-8020 Panda from September 1975 | Adventures in Amateur Watch Fettling Third time lucky: A Seiko 6138-8020 Panda from September 1975 | Adventures in Amateur Watch Fettling](https://adventuresinamateurwatchfettling.files.wordpress.com/2019/03/seiko-catalogue-6138.jpg)
Third time lucky: A Seiko 6138-8020 Panda from September 1975 | Adventures in Amateur Watch Fettling
![Third time lucky: A Seiko 6138-8020 Panda from September 1975 | Adventures in Amateur Watch Fettling Third time lucky: A Seiko 6138-8020 Panda from September 1975 | Adventures in Amateur Watch Fettling](https://adventuresinamateurwatchfettling.files.wordpress.com/2019/03/seiko-6138-from-1975.jpg)
Third time lucky: A Seiko 6138-8020 Panda from September 1975 | Adventures in Amateur Watch Fettling
![Seiko Panda Vintage automatic chronograph watch Ref 6138-8020 Cal. 6138 *** SPECTACULAR *** Seiko Vintage watches - Watches83 Seiko Panda Vintage automatic chronograph watch Ref 6138-8020 Cal. 6138 *** SPECTACULAR *** Seiko Vintage watches - Watches83](https://watches83.com/25909-large_default/seiko-panda-vintage-automatic-chronograph-watch-ref-6138-8020-cal-6138-spectacular-.jpg)
Seiko Panda Vintage automatic chronograph watch Ref 6138-8020 Cal. 6138 *** SPECTACULAR *** Seiko Vintage watches - Watches83
![Third time lucky: A Seiko 6138-8020 Panda from September 1975 | Adventures in Amateur Watch Fettling Third time lucky: A Seiko 6138-8020 Panda from September 1975 | Adventures in Amateur Watch Fettling](https://adventuresinamateurwatchfettling.files.wordpress.com/2012/06/6138_19.jpg)