Seiko Serial Numbers Complete Guide and Date

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.

Old Seiko Watches

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,

Description Lovely Vintage Seiko Automatic Day Date Watch Detail This auction is for a vintage gents watch by Seiko dating from the mid s The​.

Instead, hundreds of watches with numerous different designs, intended for different uses, have carried the emblematic shield logo with the 5 in the center. In fact, the watches have been signed several different ways — Seiko 5, Seiko 5 Sports, Seiko Sportsmatic 5, Seiko 5 Actus — with movements ranging from 17 to 25 jewels.

When it was introduced in , the Seiko Sportsmatic 5 heralded multiple innovations. In any case, this third attribute was less a technological innovation and more an innovative design criteria for the Seiko 5 sub-brand. There is some disagreement. The Diaflex mainspring 2. The Diashock system 3. Automatic winding 4. Water resistance. Automatic winding 2. Water resistance 4.

Durable case and bracelet. Perhaps this is because the two movements, while significant, were not unique to the Seiko 5.

Timekeeping Icon: The Seiko 5

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. Something special. Something only we have discovered. With that dial that I really dig but that was also made in the year or even the month of my birth.

Find the manufacture date of any Seiko watch. Seiko watches have Vintage seiko wristwatch back containing serial number and caliber. Seiko Serial Number.

But…as with all things in life, there are caveats. This Seiko is a masterpiece…large and beautifully designed! Hell yes! Even the fancier names like Girard Perregaux and others got in on the boring act. The basic reasons for buying any vintage Seiko are simple. One of the more common and affordable Seiko Sport Divers is this These watches were built with robotic efficiency — which is admittedly pretty non-sexy compared to the thought of someone toiling away in the hills of Switzerland — but it has left us with some amazingly well-preserved pieces today.

Adding to that, the movements are bulletproof, many have never been restored or viewed, and still run amazingly well. One of the most common vintage Seiko movements, the , is showcased within this gorgeous Sport Diver, the A snap back on a manual wind Seiko from January, This is important because when looking for vintage models, a given movement often spans the gamut of dress to serious dive watch and only the power plant inside is the same.

Some popular references that present opportunities are the , , , , and but this is by no means an exhaustive list. Seiko was a touch tricky with this because there are sometimes multiple 4-digit codes that reference similar or same models. If you have doubts, and this is a good rule of thumb for any Seiko, go to Google images and type in the full name of the watch all 8 digits and ensure that the watch you desire has the right case back.

The History of Seiko Through 12 Milestone Seiko Watches

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.

Seiko is one of the few fully integrated watch manufactures. We design and develop our own movements using leading-edge technology.

What shall follow is how to find out the birth details of the Seiko you just bought. It applies to the vintage Seiko-s as much as the most recent of releases; from the venerable Seiko 5 to the elegant and sombre Grand Seiko. And to everything that are in between. So I thought of answering them once and for all.

This also reveals the history or significance of that particular Seiko watch. Thus, you gain the knowledge and also, the power to choose and bargain, in its real sense, especially when you are buying a Seiko from the new, old stocks or models that have been discontinued. These, ideally should come at a lower price than what they were made available first; knowing the significance of the numbers at the backside shall help you obtain the item at a more reasonable and realistic price.

A Seiko with a solid case-back shall bear the 6-digit number etched in a straight line; for a transparent case-back e.

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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. I can’t vouch for the accuracy of any of this information, but I’ve found it useful as a first step in estimating dates of manufacture for some of the watches in my collection.

Serial numbers may be found on movements, case backs or dials depending on the make, model and age of the watch in question. It’s not unusual to find movements that are one or two years older than the cases containing them.

Information about dating vintage wristwatches/pocket watches by their serial a similar serial number dating system to that employed by Seiko (see below).

Remember Me? What’s New? Results 1 to 12 of Thread: How to date the age of your Seiko Watch. Thread Tools Show Printable Version. Originally Posted by noah. Wait Out.. The calculator is not very accurate. There is still a need to know when the movement came out or a rough estimate. I tried the calculator on my Seiko and found all of them 10 years older then it should be as I assume the earliest date the movement came out, which was 10 years ago.

Seiko Date Finder

By Nigelp , October 19, in Japanese Watches. I recently bought this 33mm Seiko gold plated 2 hander with date. I input the serial number to the usual sites. The best they could give me was or

Vintage Seiko Watch: The Sportsmatic 5. Fans of vintage watches will find the Sportsmatic 5 from the s especially interesting. This wristwatch is the.

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. If more than one date is returned then either I lack data for that Seiko movement or it was made for over a decade. For details of my Seiko movements list click here. For information about how this actually decodes and how to decode a Seiko serial yourself click here also has a video showing how to find your serial number and movement.

To get the best chance of getting only one date returned it is best to enter your Seiko movement in the 2nd box. The boxes are not case sensitive.

#TBT A Vintage Seiko Buyer’s Guide to Affordable Goodness

Forums Latest Auctions Members. Posts 83 Likes I was given my grandfather’s old seiko watch today.

– Seiko Sportsmatic Crosshair Automatic Waterproof Date Watch Vintage – Seiko Watch – Ideas of Seiko Watch #SeikoWatch.

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. Little information is stamped on the back — typically it may relate only to the case back material:. Acknowledgement — in order to get a uniform type of image and size, I have primarily used the Japanese Domestic Watch volumes as a source, I wish to give due acknowledgement and credit here.

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