Baselworld 2019 Announcement - Astron

Baselworld 2019 Announcement - Astron

It was fifty years ago this year that the Seiko Astron, the world’s first quartz watch, was released to the market. In 2012 Seiko introduced the world’s first range of solar GPS based watches and they named these Astron in reference to the original model. This year Seiko announces four new solar GPS Astrons including one to commemorate the original quartz model.

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Update: Credor Brand Introduction and History

Credor Update.jpg

I have included a quick update to the Credor brand introduction article with changes to the Seiko 1975 Volume 1 and 1976 Volume 1 catalog sections. The update includes additional pages from the ‘75 Vol.1 catalog and the inclusion of a description page from the 1976 Volume 1 catalog describing the philosophy of the Credor brand at that time. Thanks to Gerald from the thegrandseikoguy for identifying these pages.

Here is a link to the updated article - Credor Brand Introduction and History

50th Anniversary of the first automatic chronograph - Seiko’s 6139

50th Anniversary of the first automatic chronograph - Seiko’s 6139

This year represents the 50th Anniversary of the first automatic chronographs that were released by multiple companies in 1969. Seiko’s first automatic chronograph calibre was the 6139 and it was available in a number of models. There has been much debate over the years as to which companies products were “first” so I try to look at the evidence to determine when Seiko models were first produced and released to the market.

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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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