The specific model number for the second Seiko produced divers strap has previously not been known in the community. Thanks to the appearance of a couple of examples in Japanese auctions over recent months it seems that the official model number has been identified.Read More
I have updated the Japanese Watch Reference books articles with some new acquisitions. This includes additions to the Official Company Publications, General References and the Domestic Watch series.Read More
I have added some videos of the movements in operation to the main article on the 89ST series of stopwatches. I have also included a short slow motion section to make it easier to see the movements. You will note that the 890C when slowed down to 5% of normal speed is still at 18,000 bph, the same speed as the 890A operating normally.Read More
In 1929 Seiko produced the first domestic railroad watch for the Japanese market. This began a long and successful series of railway watches from Seiko that continues to this day. To commemorate the 90th Anniversary of this first watch Seiko has released the limited edition SVBR007.Read More
When looking at the information that can be found in the modern Grand Seiko data various interesting patterns and details can be determined. This includes the mapping of calibres to series and the distribution of releases over the years.Read More
I have assembled a database of modern Grand Seiko models that have been released since the brands reintroduction in 1988. The database now contains over 700 watches encompassing both mens and ladies models.Read More
The GS9 Club is a official Japanese group for Grand Seiko owners. This year they held a large event in Tokyo, bringing together members to view some of the latest Grand Seiko models, see various artisans at work and interact with other members. I was lucky enough to be able to attend the event and experience this directly.Read More
In the early 1960’s Seiko developed a series of high quality stopwatches specifically designed for the 1964 Tokyo Olympics. These models were sold to the public for over a decade and were used at two different Olympic Games. Two of these stopwatches have a split second complication while a third operates at a high frequency of 360,000 bph.
While the Seiko designer Taro Tanaka is know for his "Grammar of Design" this series of stopwatches shows the range of products he influenced during his career. These models were the most interesting mechanical sports timers developed by Seiko and there is a very interesting story behind their development and evolution.Read More
In the 1960’s Seiko participated in the Chronometer competitions that were held at the Neuchâtel Observatory in Switzerland. During these competitions Seiko participated in the mechanical wrist watch categories as well as various quartz categories. Their first entry was in 1963 where they placed 10th and by 1967 they dominated the pocket chronometer category with the first 5 places and 13 of the top 15 entries. This article focuses on the quartz entries from Suwa-Seikosha and their participation in the competitions.Read More
On Christmas Day 1969 Seiko released the world’s first commercially available quartz watch. To explain this new technology to the public Seiko produced a dedicated brochure that highlighted the advantages and differences to a traditional mechanical watch. Here is a copy of the original brochure and a translation of it.Read More
I had the opportunity to visit the museum operated by the National Association of Watch and Clock Collectors during my visit to the United States. This museum is located in Columbus Pennsylvania and it has a wide and varied display of clocks, pocket and wrist watches. While the majority of the collection is focused on US based manufacturers there was still a number of interesting displays for Japanese watch enthusiasts.Read More
I have scanned the various Seiko JDM watch catalogs from the late 1960’s. These catalogs show the watches available at the time as well as basic details and pricing.
You can download PDF copies of the catalogs from here - Seiko Catalogs - Late 1960's JDM