Seiko Watch Production Date Calculator is ALIVE again - Page 2 - Seiko & Citizen Watch Forum Japanese Watch Reviews, Discussion & Trading
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Old 07-04-2013, 04:34 PM   #26 (permalink)
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Default Re: Seiko Watch Production Date Calculator is ALIVE again

Great! Thank you John . . .

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Old 08-02-2013, 03:45 PM   #27 (permalink)
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Default Re: Seiko Watch Production Date Calculator is ALIVE again

Hi John, I'm new here (Aug. 2, 2013 , 3:24 PM in Ontario Canada) thank you for setting up the S.W.P.D. Calculator on here!
My old Seiko Automatic TV style watch was made in Feb. 1988 as it turns out. Now I just need to figure out how to source a replacement part for the original B 432 watch band that came with it!
Hopefully someone on here can help me with this.


For your Seiko database, its model (?) # 7009- 5019, Serial # 822958.
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Old 08-23-2013, 09:29 AM   #28 (permalink)
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Hi startdotstar.. Does your back case have Japan A inscribe after water resist?? Coz for what i know earlier batch of 6309s have Japan A instead of just a A. Correct me if im wrong guys.
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Old 09-15-2013, 12:43 PM   #29 (permalink)
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excellent to see it up and working again... many thanks!
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Old 12-22-2013, 06:39 AM   #30 (permalink)
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Default SKX171 year identified. Thanks!

Thank you from me too! As a result of your work I was able to identify my SKX171 is from 1996. I had forgotten when I bought it. I got it out recently to flip, but after wearing it for a couple of days I've decided to keep it a while yet
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File Type: jpg SKX171.jpg (201.6 KB, 17 views)
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Old 01-16-2014, 03:19 PM   #31 (permalink)
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Thank you !

It works, of course...
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Old 01-30-2014, 10:55 PM   #32 (permalink)
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Default Thank you

Very useful indeed!

I thank you!
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Old 01-31-2014, 10:37 AM   #33 (permalink)
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Useful for sure,but how accurate it is?
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Old 02-01-2014, 11:14 PM   #34 (permalink)
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Default actually...

... it can be quite accurate if you have a basic knowledge of SEIKO.
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Originally Posted by igorfiume View Post
Useful for sure,but how accurate it is?
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Old 02-02-2014, 02:23 AM   #35 (permalink)
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Default Mine reads

6309-7040's ,

7040 , Some of mine reads
151xxx .... Calendar says 1981
another reads
___________________________________
780xxx ....calendar say 1977
( This one is all original, only serviced. Beautiful Equal Patina )
____________________________________
another
reads 360xxx....... Calendar says 1983

Last edited by LongBike; 02-02-2014 at 02:28 AM.
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Old 02-04-2014, 02:25 PM   #36 (permalink)
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Quote:
Originally Posted by JohnWN View Post
... it can be quite accurate if you have a basic knowledge of SEIKO.
I would say more than basic,not only in Seiko
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Old 02-05-2014, 04:16 AM   #37 (permalink)
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Nice!!
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Old 04-05-2014, 12:26 AM   #38 (permalink)
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well what do you do when yours comes up unknown....i have just got a H601 5480 AO ..the serial number is 177xxx...i thinkif i understand it correctly...it is July 1981..am i right or all mixed up....
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Old 05-07-2014, 04:02 AM   #39 (permalink)
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Ack the little blighters not working at the moment just in case anyone wonders why they get a error page after putting in their data.
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Old 05-09-2014, 07:29 AM   #40 (permalink)
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You don't really need the calculator. The first digit of the serial number is the year, and the second digit is the month. That's it. Usually you can guess the decade by the style and general condition of the watch.

Example: 1980s watch, serial number 420121. The first 4 means 1984, the 2 means February.
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Old 05-09-2014, 07:30 AM   #41 (permalink)
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Quote:
Originally Posted by bitfield View Post
You don't really need the calculator. The first digit of the serial number is the year, and the second digit is the month. That's it. Usually you can guess the decade by the style and general condition of the watch.

Example: 1980s watch, serial number 420121. The first 4 means 1984, the 2 means February.

It's that simples! Your a star thank you
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Old 05-09-2014, 09:21 AM   #42 (permalink)
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I think the link is not working
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Old 05-12-2014, 06:06 PM   #43 (permalink)
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yup dead again, should have copied that cgi while it was working...
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Old 05-21-2014, 05:03 PM   #44 (permalink)
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Sorry gang, the production date calculator was broken two weeks due to a brain glitch on my part. I recompiled the cgi program and all seems to be working properly again.

John
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Old 06-02-2014, 08:23 PM   #45 (permalink)
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I think your glitch is back....
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Old 06-13-2014, 06:23 PM   #46 (permalink)
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working again thank ye very kindly sir!
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Old 07-27-2014, 05:04 PM   #47 (permalink)
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Quote:
Originally Posted by SeikoSan View Post
Mine cannot be found, unfortunately.
What model is yours and what's the serial number?
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Old 08-02-2014, 04:29 PM   #48 (permalink)
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Quote:
Originally Posted by flibble View Post
Thank you from me too! As a result of your work I was able to identify my SKX171 is from 1996. I had forgotten when I bought it. I got it out recently to flip, but after wearing it for a couple of days I've decided to keep it a while yet
That is a beautiful SKX171! For an 18 year old watch, it looks in excellent shape. The strap is also awesome.

Keep it, enjoy it . . .

Capt. Serdal
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Last edited by serdal22; 08-02-2014 at 04:35 PM. Reason: Typo.
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Old 08-26-2014, 07:11 AM   #49 (permalink)
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Many thanks has proved invaluable in my hunt for birth year watches of the 60's and 70's.
Cheers Michael
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Old 08-27-2014, 04:41 PM   #50 (permalink)
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Super!
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