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Seiko founder Kintaro Hattori was only 21 years old when he opened the K. After several years of producing high-quality wall clocks, Seikosha released its first pocketwatch, called simply the Timekeeper, in The Hattori quickly recognized the growing worldwide popularity of the wristwatch and predicted that the demand for wristwatches would shortly outpace that for pocketwatches. The Laurel had a silver case, At first, the need to import components meant that production was slow — just 30 to 50 pieces per day — but by , Seikosha had managed to produce its own balance springs and by , its own enamel dials. The Great Kanto Earthquake struck Japan in , destroying the Seikosha factory and stocks and halting production of timepieces. The use of a non-English name indicated that Hattori had become confident enough in the quality of his products that they would sell despite the widely held belief at the time that products made in the West were of superior quality.

vintage Seiko wristwatch

The Seiko serial number decoder Find the manufacture date of any Seiko watch Seiko watches have a 6 or 7 character serial number on their casebacks. The second character can be a letter but the rest are all numbers. You can use the Seiko serial number in conjunction with the movement number to calculate the year of manufacture. The month and last digit of the Seiko’a date of manufacture is calculated using the serial number and then narrowed down to a decade using my database of Seiko movement manufacture dates.

You will be given an eBay link to check the value, useful links such as manuals, etc and for quartz models the battery information.

Oct 17, – GENUINE VINTAGE SEIKO 5 AUTOMATIC JAPAN MEN’S DAY/​DATE WATCH b-a Watches UK.

Have you ever wondered when your watch rolled off the assembly line at the factory? In other words, when was it manufactured? Questions relating to the production date of Seikos frequently pop up in various watch forums from time to time. And if you have that knowledge, you have an edge over the seller that could be very useful. Especially when it comes to bargaining for a better price for that new, old stock NOS Seiko that caught your fancy. File photo of a typical watch store in Kuala Lumpur.

How to Identify a Seiko Watch by the Serial Number

By David Flett. Watch enthusiasts I mean. The thrill of opening the next box or clicking the next link to see if it might be hiding something different.

Simple and quick, this page allows you to determine the exact date of manufacture of a Seiko watch basing on the caliber and serial number printed on the.

In the back of Seiko watches there is a range of information presented. This can tell you the movement type, date of manufacturer, how to open the case, which company produced the product, what the case is made from and the specific case design code. These codes are also occasionally stamped on the inside of the case back while the external surface remains clean.

In the article they describe the different details that were shown on the case backs at that time. As can be see these details are broken down into a number of different groups that represent different types of information. Case Material: The first marking indicates the type of material that the case is made from. This is commonly stainless steel but may also specify a range of different materials e.

A listing of the different material codes can be found here — Seiko Case Material Codes. Case Number: The next useful group of data is the Case Number. This is broken down into two sections; the first is a 2 or 4 digit Caliber Code movement number. This is separated with a dash to the Design Code case type.

Deciphering Seiko Case Back Information

Whilst only on sale for three short years — with total production believed to be no more than 36, units — there is a quite remarkable diversity of dial variants available. The purpose of this article is to provide some insight into the dial variations that exist — or at least, the ones that we are aware of at this present time that exist — as well as touch on some other notable differences in features of the watch.

Where stock is available, we will provide links to watches that are for sale. Firstly, the case serial number on the inside of the case back tells us the year and month from the first two digits of the serial number of completion of the watch. In addition, the movement also has its own serial number, and from that number we can get a rough idea as to when the movement was created.

There are three main variants here — printed, carved, and raised.

It applies to the vintage Seiko-s as much as the most recent of releases; from the venerable.

Forums Latest Auctions Members. Posts 83 Likes I was given my grandfather’s old seiko watch today. I’m trying to figure out when it was made. It’s a simple seiko 5, nothing fancy. He passed away 20 years ago, and yet all it took was a little shake from me for it to start ticking again. How old do you think it is? Looks early 90s to me. Options Copy link to this post.

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The information below was gathered and amalgamated from various sources on the Internet. Sadly, I didn’t keep a record of where it all came from, but none of it is my own work. I can at least say thanks to Agent Orange, JoT, “mach 0.

When we talk about how to “date” a vintage Seiko, finding crystals, and other things, the guide works across all types of Seiko’s. Whatever we.

The page includes a calculator along with instructions and example images to help you find the movement caliber, case code and serial number on the back of your watch. The calculator uses these codes to do its magic. If you don’t know how to find these numbers on your watch please read our instructions below. You can also view the entire datefinder database. We encourage people to send us additions and corrections. Most Seikos have a “retail” model number that is displayed in the store but not written anywhere on the watch.

They also have a “reference” model number that is written on the case back.

Seiko Serial Numbers Complete Guide and Date

Over the years Citizen have changed their watch case back markings, whilst they have also used special backs on their high grade watches and certain specific models. This page attempts to show the basic types and how to interpret the information that case backs give — often crucial to determining the authenticity of the watch. Each of these used various case designs, with different case materials, and the case back markings began to reflect this.

The late s also saw the introduction of serial numbers, which are very useful to us of course, because we can determine the date of production. More on that later. Before covering the three basic designs, a word about the very early models.

Oct 4, – VINTAGE SEIKO 5 AUTOMATIC 21 JEWEL CALA DAY DATE MEN’S WRIST WATCH Watches UK.

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SEIKO 5606 and 5626 Day/Date Setting Fault – EXPLAINED!!


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