![Seiko Watch Serial Numbers Reference Seiko Watch Serial Numbers Reference](https://quartzimodo.com/wp-content/uploads/2008/06/snzb33j2-4.jpg)
- Seiko Watch Models Identification
- Check Seiko Serial Number
- Seiko Watch Serial Numbers Reference
- Value My Seiko Watch
- Seiko Watch Serial Numbers Reference List
- Seiko is one of the few fully integrated watch manufactures. We design and develop our own movements using leading-edge technology.
- Diameter (mm) Height (mm) SII Energizer Duracell Rayovac Renata Varta SEIKO Timex Bulova Citizen Orient I.E.C. 6.8: 2.15 (SR621W) 363: 280-70: SR60: 6.8: 2.60: SR626W.
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- Seiko started with the six-digit serial numbers in 1966, which means you will not be able to use the below methods to date your watch. Prior to this, Seiko used seven digits. Note that during this time, there was a transition period where both systems were used. This means that when the first digit indicates.
Seiko Watch Models Identification
'When was my Seiko made?' We hear that a lot here at WatchSleuth so we built this page to help you figure it out.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.
Your results will be shown here.If you don't know how to find these numbers on your watch please read our instructions below.
All Seiko's should have a Serial number on the case back The first number in the Serial is the last number in the year of production, and so if it is a new watch and you see an 8 it should be the year 2008 The second number in the Serial is the month the watch was made if you see a 4 it will be the month of April most Seiko serial are 6 digits long and so a serial of 86XXXX would be a watch.
You can also view the entire datefinder database. We encourage people to send us additions and corrections.
Example #1
6119-8083 | 061187
Mvmt-Case | Serial
Finding the Model and Serial Number
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.This reference model number is a combination of two numbers:
- movement caliber
- case code
The other number you will need is the serial number.This is also on the case back and is six digits long.In the example images the serial number is highlighted in blue.Every watch has a unique combination of reference model number plus serial number.
Example #2
6309-576A | 2D5822
Mvmt-Case | Serial
How is the Date Calculated
The first digit of the serial number tells you 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
Using this additional information we can update our three examples: Myriad 4 1 – audio batch processor.
- the 6119 was first made in 1970 so #1 is from 1970 or 1980
- the 6309 was made from 1976 to 1987 so #2 is from 1982
- the 7S36 was first made in 1996 so #3 is from 2004 or 2014
The second digit of the serial number is also useful. It tells you the month the watch was manufactured.Here are the possible values:
- 1 = January
2 = February
3 = March
4 = April
5 = May
6 = June
7 = July
8 = August
9 = September
0 = October
N = November
D = December
Check Seiko Serial Number
The remaining four digits of the serial number indicate the production number for the watch.If your last for digits are 0000 then you have the first watch made for that model reference number.Returning to our examples and using the second digit from the serial number we get the following production dates:
- The 6119-8083 061187 was made in June of 1970/1980
- The 6309-576A 2D5822 was made in December of 1982
- The 7S36-03J0 411082 was made in January of 2014
Seiko Watch Serial Numbers Reference
![Seiko watch serial number lookup Seiko watch serial number lookup](https://www.ablogtowatch.com/wp-content/uploads/2019/10/Seiko-Prospex-Presage-SRQ029-SRQ03-Caliber-6139-50th-Anniversary-Watches-3-470x470.jpg)
Example #3
7S36-03J0 | 411082
Mvmt-Case | Serial
Why Do We Ask for the Case Code
Value My Seiko Watch
If you were paying close attention you may have noticed we asked for the case code in the form above but we did not mention using it when calculating the date. News explorer 1 8 8. You can leave that field blank and still findthe date for your watch however if you complete the field we will provide a listing of watches from our Seiko catalogsthat match the movement and case code.
Special Thanks
Seiko Watch Serial Numbers Reference List
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) which is linked to in the Quartzimodo article no longer seems to be available, so we built our own.Another useful resource we found during our research was The Seiko Manufacture Date Decoder on the Retro Seiko website.It does not seem to be as well known and we hope that our movement database is more completeand that our instructions are more helpful.As with any part of WatchSleuth we encourage people to contact us with suggestions, corrections or any other information that would make our site more useful.