Try to enter the caliber and the serial number into the Production Date Calculator and it will assume that the watch is from November 1991. You have one of the earliest Bell-Matic models, which is a rare occurrence. For many of Seiko's movements we know the first year they were produced and for most movements they were produced for less than 10 years. All I can tell you is that your Lassale was most probably made on June 1990. Probably this is the worst most detailed database of all Seiko production since 1950 over the. I've used this one several times to escape being scammed on eBay when going for a vintage diver, highly recommended! Since the mid 1990s, all Seiko watches are generally quartz by default.
Read more about Citizen history here:. Not all used 7T36 watches for sale will have uniform values as it will also depend on the exact model. Pendleton is a certified television show producer, radio talk-show host and producer, and a computer programmer with a bachelor's degree in computer science. How do we do it? Production of wall clocks begins. I expect them to be vastly improved versions of their earlier efforts. I will continue to wear it and pass it down to my son.
We know this model was not made so late as 1986 so it is made in 1976. When a movement passed the Observatory, it became certified as an Observatory Chronometer and received a Bulletin de Marche from the Observatory, stipulating the performance of the movement. The Speedmaster case back features 10 bar water resistant protection, and has the corresponding 2 wave insignia. I had expected to stop at 18 but your salesmanship for the Orients was so excellent that I had to expand my collection accordingly. The Spring Drive movement was also used as the basis for the first-ever watch designed to be worn by an astronaut during a space walk, the aptly named Seiko Spring Drive Spacewalk.
Currently Seiko has only two analog-digital calibers left in its stable — the world-time , which is nearing its end of production life and also its latest H024 caliber. Seiko watches production dates by serial number This page shows how to to date your seiko watch by the serial number. Bulova watches that were manufactured from 1950 and later feature a two-digit code that signifies the manufacture decade and year. Later 6309 models were Hong Kong assembled until they were discontinued by the late 1980s. As for the prized and short-lived, rare 7T59 chronograph models, they were only made between 1991 and 1993. Seiko really threw investment, thinking and effort into this one.
It has no markings for gold karat, but I would love to find this out, so that I can have a rough idea of what this may be worth as gold. At the time Seiko had proudly designed several ultra wafer-thin quartz movements and they fitted them to the initial Seiko Lassale models. Just not sure what to make of it. Practically almost all manufacturers even the Guess fashion brand had moonphase dial watches back then. Unlike some Swiss manufacturers, Seiko never officially published a complete history of all of their watches and clocks that they produced. Certain models and movements indicate a specific time frame so it is easy to identify the exact year. In reality the pushers have turned out to fatigue and become brittle, and good models are hard to come by.
They were useful only for accuracy competitions, and so never were sold to the public for usage. Seiko watches were originally produced by two different subsidiaries. Cheers, gigfy The Seiko date calendar that Jayhawk created is great. The 7A28 movement featured 15 jewels, contained no plastic parts, and can be regulated, and repaired, so older models can be kept in service. The original price for this model was 30,000 yen.
In 1969, Seiko introduced the , the world's first production ; when it was introduced, it cost the same as a medium-sized car. First image courtesy of Rikus Basson of rbasson. My Mom tells me to research about it before i make drastic and impulsive decisions. The designs incorporated large pushers so that they could be operated easily while wearing gloves. In the example images the serial number is highlighted in blue. I have tried repeatedly to set the alarm but it never sounds. The sales assistant wrote the serial numbers on the guarantee but did not say which is for which watch.
This table below describes the structure of the serial number. The other Seiko 7A28-7020 variant is reference no. So we can narrow it down to 1976 or 1986. I guess more consumers preferred the traditional date display instead of a tiny hand pointing at even tinier date numbers in a circle. Best Regards Dave Baldry Hello! A well known example is its very popular 7s26 automatic caliber. Introduction of quartz watch powered by the wearer's movement, requiring no batteries. All other features of the watch are the same; the crystal, crown, hands, case and bracelet.
The date of manufacture will be calculated using the first 2 digits of the serial number and my database of Seiko movement manufacture dates. Cheers Leon Thanks Leon, I wondered why all of the Asian websites only sold the 011J and not the 011K. So not only do you have a chrono, you have a split timer. The replacement 7s26b caliber however, came out in late 2006 but the production calculator does not take this into consideration. Savvy Seiko watch enthusiasts have been using to check when their watches were made. McArthur-Christie, , blog post, Feb 2014 6 Seiko website, , online catalogue 7 Seiko forum, , forum 8 Dell Deaton, , blog post 9 Ariel Adams, , blog post, November 2015 10 S. Dedicated to technology advancement and precise manufacture, the Seiko Company has repeatedly staked its reputation on performance, acting as the Official Timer of the Olympic Games in Tokyo, Sapporo, Barcelona, Lillihammer and Nagano.
The serial number is 880742. An early 6138-0011 from Oct 1970 left and a late production 6138-0011 dating to Apr 1977 right. Unfortunately I have no idea how many pieces of your particular model were made. I solicit your expertise and know you are the expert. Currently, all Seiko watches are quartz models except if the movement type is indicated on the dial. But back in the early 1980s, when most watches had little grey, digital screens, this was serious stuff.