Seiko 6139A and 6138A Chronograph Technical Guides

Seiko 6139A and 6138A Chronograph Technical Guides

Seiko produced a series of technical guides for their different calibers to assist in service and maintenance of the movements. I have scanned a version of the 6138A and 6139A caliber technical guides that should be of use to many people. As these watches are now reaching 50 years old many examples do not have a known service history and will need to be examined by a competent watchmaker.

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Update: Official Company Publications - Suwa and Watch and Me -

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I recently obtained a new book I had not previously been aware of. This is a Seiko Epson publication compiling different articles and speeches given by Tsuneya Nakamura from throughout his career. Nakamura-san was a highly influential figure in the Suwa / Seiko Epson company development, driving their participation in the Swiss Neuchâtel competitions, leading the “59A Project” that resulted in the development of the original Astron and eventually becoming the President of Seiko Epson Corporation. The book contains a wide range of articles that span 50 years of his career. Details of the book can be found here - Official Company Publications

First King Seiko model

King Seiko - Photo: Róbert Sipos

King Seiko - Photo: Róbert Sipos

I wanted to let people know about a great article on the first model of King Seiko’s that has been put together by Róbert Sipos. This article is in Hungarian, that I do not read, but Google translate in Chrome is adequate and the article contains such extensive info it is worth checking out by everyone.

The article can be found here - The first King Seiko


Seiko Olympic Timing - 1972 Sapporo Games

Seiko Olympic Timing - 1972 Sapporo Games

Many people are aware of Seiko’s involvement win the 1964 Tokyo Olympic Games but their involvement in the 1972 Sapporo Winter Olympics is less commonly known. I recently acquired a Seiko promotional folder for the Sapporo ‘72 games and have documented its contents here as well as some other background information on the event and its preparation.

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1973 Seiko Special Luxury Watch Catalog

1973 Seiko Special Luxury Watch Catalog

Seiko released dedicated catalogs for their Special Luxury models in the early 1970’s. These catalogs contained their high end models that featured precious metal cases as well as unique jewellery designs. I recently acquired a copy of the 1973 catalog and have some images fromthe catalog as well as a scan of the full catalog available for download.

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Visit to the Paris Seiko Boutique

Visit to the Paris Seiko Boutique

I was lucky enough to be able to visit the Seiko Boutique in Paris recently and spend some time with the friendly and knowledgeable staff along with a number of local Seiko fans. This turned into a great evening and it was a pleasure to be able to chat with such informed enthusiasts who truly are passionate about the brand.

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