In 1972 Seiko released this Special Luxury Watch catalog that showcased a range of their top end models that featured precious metal cases and jewellery. Details of this catalog can be found in this article as well as a link to download a scanned copy of the document.Read More
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.Read More
The Credor brand was created in 1974 but when initially launched it did not have the same branding that we have come to recognize today. When launched it was a collection of models and not a standalone brand, there was a different spelling and it was a number of years before the name Credor and the distinctive “mountain” logo were introduced. This is a summary of the introduction of the branding and how the Credor range was presented in the first few years.Read More
I have updated the Vintage Seiko Dive Straps article to include details of the Seiko 1972 Watchband Catalog No.1. This catalog was discovered and detailed by Gerald over at The Grand Seiko Guy. The original article detailing the catalog can be found at Seiko Watchband Catalogue – 1972/No.1
This catalog provides the first official confirmation that Seiko released orange versions of the Chocolate Bar and XGL-731 Tire Track straps. There is also a newly discovered strap that does not seem to have been issued with any Seiko models but was just available as a replacement part.
The updated article on the Vintage Seiko Dive Straps can be found here - Vintage Seiko Dive Straps
I have updated the Vintage Grand Seiko Bracelets article to include details of the Seiko 1972 Watchband Catalog No.1. This catalog was discovered and detailed by Gerald over at The Grand Seiko Guy. The original article detailing the catalog can be found at Seiko Watchband Catalogue – 1972/No.1
The updated article on the GS bracelets can be found here - Vintage Grand Seiko Bracelets
Before the release of the revolutionary XGL-801 strap provided on the 6159-7010 Grandfather Tuna Seiko released a number of different strap designs on their dive watches. Here is a summary of these and details for each to identify the correct watch they should be paired with.Read More
The second dive strap designed by Seiko, released after the ZLM01 waffle, was the appropriately named Chocolate Bar. This was released in 1969 and was only supplied on the 6159-7000 and 6105-8110 dive watches in the Japanese market. It has a distinctive design that gives the strap its nickname.Read More
I have updated the “Deciphering Seiko Case Back Information” article to include the battery change gauge found on diver models as well as the Bxxxx stamps that are often found on older examples of these watches.
The full updated article can be seen HERE.
The XGL-731 was the third dive strap designed by Seiko. This was released in 1972 and was only supplied on the 6105-8110 dive watch in Japan. It has a distinctive design that make it instantly recognizable.Read More
In the 1960's mechanical watches were reaching their peak and a series of competitions to determine the most accurate watches in the world were being held in Switzerland. A couple of Seiko companies joined these competitions and within a few years were able to compete at the highest levels.
To understand how the companies performance was able to improve and rapidly evolve I have created a timeline showing the details of their results along with information on the key staff members and the details of the calibers developed.
More information about the competitions can be found HERE.
In 1968 Daini-Seikosha submitted 103 specially regulated 4520A movements to the Neuchâtel Observatory for Chronometer certification. 73 of these watches passed the certification and these were then placed into 18K gold cases and sold to the public as the 45GSN Astronomical Observatory Chronometer. Additional movements were certified in later years and Seiko finally offered 226 examples for sale.Read More
Gerald over at The Grand Seiko Guy has put together a comprehensive guide to the different variations of the original Grand Seiko model 3180 aka “First”. There were printed, carved and raised logo versions of the dials as well as multiple variations of these. This article details the differences and explains what to look for if you are trying to track down an original piece. There are numerous examples of franken models out there so this should be an invaluable resource for people looking to purchase the First Grand Seiko model.
Check out the full article here - A guide to the Grand Seiko “First” dial variations
I have made a number of updates to the Vintage Grand Seiko Bracelets article. This includes some additional photos of bracelets and some more details on the specific markings on some models.
I have also shown some photos of the very unique bracelet that comes with the 6185-8000. This bracelet reminds me a little of a lobster and it is unusual due to the double bracelet clasp and the way it is fixed to the main watch body.
The full article can be found HERE.
I have added a new book to the General Reference Books page. The book is called "Why are the hands of the clock clockwise? - Unraveling the mystery of clocks and time". The book has answers to general watch and time specific questions and is really only interesting to watch enthusaists because of the author, Oda Ichiro, who worked for Seiko sales and marketing in various positions for many years.
The specific book can be found HERE.
The link to the overview of the different Japanese watch reference books can be found HERE.
I recently added a couple of new books to the Official Company Publications section of the Japanese Watch Reference Books article.
The first was the original Japanese language version of the History of the Japanese Clock and Watch Industry (Vol.3) - Evolution of Seiko 1892-1923. The Japanese version is titled Development of Watch Industry and was published in 1984. Details of this book can be found HERE.
The second book I added was a very interesting volume titled Origin of Technology - Seiko Electronic Industry Postwar Watch Technological History. This book was published in 1991 by Seiko Instruments Inc. and contains a large number of official documents from the companies history as well as reports on the different technologies that have been implemented in the watch production process. There is information relating to the advances in machinery and how this has influenced their improvements in accuracy and production capabilities. This is a very interesting book and I have only seen the one volume ever come up for sale. More information can be found HERE.