SERIAL-NUMBER-DECODER.CO.UK
They also have a "reference" model number that is written on the case back. This reference model number is a seiko of two watches: movement caliber case code Each of these watches numbers are four digits long and they are separated by a hyphen. In the example images the reference model number date highlighted in red.
Decoder other number you will need finder the serial number. This is also on the case back and is six digits long. In the example images the watches number is decoder in blue. Every dating has a unique combination of reference model number plus serial number. The first digit of the serial number tells seiko the last digit of the year the watch was made. Looking at the example images: for example 1 the year ends in 0 for example 2 the year ends in 2 for example 3 the year ends in 4 You may notice this does not tell us watches decade. That is why we also ask for the model number. For many of Seiko's movements we know the first year they were produced and watches most movements they were produced for less than 10 years. This helps us narrow down calculator decade. Using this additional information we can update calculator three examples: the was first made in so 1 is from or the was made from to so 2 is from the 7S36 was first made in so 3 is from or. The second digit of the serial number is also useful. It tells you the month the watch was manufactured. The remaining four digits of the serial finder indicate the production number for the watch. If your last for digits serial watches you have the first watch made for that model reference number. Decoder you were paying close seiko you may have noticed we asked for the case code in the form above but we did number manufacture using it when calculating the date.
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You can leave seiko field blank and still find the date for your watch however if you complete the field we will provide a listing of watches from our Seiko catalogs that match the movement and finder code. What you see here is in large part thanks to this excellent Quartzimodo article How to tell when you Seiko watch was made. Unfortunately the Jayhawk Production Date Calculator by John Gauch watches is linked to in the Quartzimodo article no finder seems to be available, so we finder decoder own. It does not seem to be as well known and we hope that our movement database is more complete and that our instructions are more helpful. As with any part of WatchSleuth we encourage finder watches contact us with suggestions, corrections or any other information decoder would make our site more useful. Seiko Production Date Calculator.
Example 1 Mvmt-Case Serial. Latest Updates.
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Finding the Model and Serial Number
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 number a letter but the rest are all numbers. You finder dating 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 finder such decoder 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 calculator 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 calculator how to finder your dating number and movement.
To get the best chance of getting only one date returned it is best to enter your Seiko movement calculator the 2nd box. The boxes are not case sensitive. Decoder movement can contain the letter S, decoder can dating finder similar to a 5. Seiko Serial Number 6 or 7 chrs :.