45 replies to this topic

[ramongonzalez]

Imprescindible info about my watches 6138
Thanks

[biggles]

Turns out the NOS seiko 5 i've just bought my missus is from March 1985. Well chuffed.

[mrteatime]

Imprescindible info about my watches 6138
Thanks

is that a word????????????????????

[SEIKO7A38]

Date Calculator = http://www.csce.uark.edu/~jgauch/tools/seiko.html

I had looked at this, and was a bit disappointed to find that the 7A28 and particularly the 7A38 models weren't covered.

In the meantime, I'd noticed that a frequent eBay seller, based in the Philippines, always stated the month / year of manufacture on his listings for 7A38's. His most recent 7A38 auctions ended early this morning:

# 360139907726 - a 7A38-7010 (with a poor bezel insert) s/n 395559, in his description: "39.....September 1983." and
# 370176587611 - a 7A38-7289 (very scruffy looking gold-tone) s/n 7N5980, where he wrote: "7N.....November 1987."

So I emailed the seller, and asked the question (Well, us dumb newbies have gotta learn somehow. )

He replied, very promptly:

okay, these are from the 80s...so first number is the year, 2nd is the month...

So, is it really that simple ?

Edited by SEIKO7A38Fan, 30 March 2009 - 05:58 PM.

[SEIKO7A38]

He replied, very promptly:

okay, these are from the 80s...so first number is the year, 2nd is the month...

So, is it really that simple ?

Err, maybe, or maybe not. I just sat down, and logged the serial numbers of my 7A38's, in approximate chronological order ....

From the oldest 7A38-7000, to the newest 7A38-7289:

7A38-7000 - 3O4262 (I thought this was a '0' at first )
7A38-7000 - 412302 (incoming soon, hopefully )
7A38-7020 - 412285
7A38-7060 - 682260
7A38-7270 - 770526
7A38-7270 - 772558
7A38-7270 - 791339
7A38-7280 - 823392
7A38-7289 - 915465
7A38-7289 - 965611

So, I think it's safe to assume that a second s/n digit in the range 1-9 covers months January through September.
From my previous post, it would seem that 'N' = November; from above 'O' = October, and presumably 'D' = December.
(That is to say, rather than 2nd and 3rd digits of '12' being December, as I might possibly have misconstrued at first. )

Edited by SEIKO7A38Fan, 30 March 2009 - 06:24 PM.

[SEIKO7A38]

Turns out the NOS Seiko 5 I've just bought my missus is from March 1985. Well chuffed.

I wasn't quite so chuffed.

He replied, very promptly:

okay, these are from the 80s...so first number is the year, 2nd is the month...

7A38-7270 - 791339

So, I think it's safe to assume that a second s/n digit in the range 1-9 covers months January through September.

I dug out the sales receipt for my own original 7A38-7270, which I purchased 'new' from a reputable local jewellers ....

.... much later than I'd remembered, in fact - January 1990. But it had been manufactured way back in September 1987 !!

I shouldn't complain really. It's still looking good, and going strong / keeping good time ....

.... and still running on the last replacement battery which was fitted in October 2005.

Edited by SEIKO7A38Fan, 30 March 2009 - 06:44 PM.

[Robin S]

The Seiko Database seems to have locked us out - or is it just me?

[PhilM]

Hi Guys

The previous address that most of you probably have in your Favourites for Jayhawks database seems to have moved.

You should be able to find it below

Da

Date Calculator =http://www.csce.uark.edu/~jgauch/photos/seiko.html

[Robin S]

Here this one should work

http://www.csce.uark.edu/~jgauch/tools/seiko.html

It's the Seiko database that's not letting us in Phil, not the Date Finder.

[PhilM]

Right seems that it's down for maintenance



BTW Cheers Lee

[SEIKO7A38]

The Seiko Database seems to have locked us out - or is it just me?

I'd exchanged a couple of emails with John Gauch, owner of the database, asking him to add the 7A28 and 7A38 models.

Although he's long since received confirmation of Seiko's dates of manufacture (1982-1989) from a thread on SCWF ....

He still doesn't appear to have added them to his table. So, I'd been going in, a couple of times a week, to check if he had.

Their server appeared to have been down on quite a few occasions.

Edited by SEIKO7A38Fan, 09 May 2009 - 02:25 PM.

[SEIKO7A38]

Date Calculator = http://www.csce.uark.edu/~jgauch/tools/seiko.html

I had looked at this, and was a bit disappointed to find that the 7A28 and particularly the 7A38 models weren't covered.

I'd exchanged a couple of emails with John Gauch, owner of the database, asking him to add the 7A28 and 7A38 models.

Although he's long since received confirmation of Seiko's dates of manufacture (1982-1989) from a thread on SCWF ....

He still doesn't appear to have added them to his table ....

Seiko Model Database / Date Calculator is now updated to include the 7A28 and 7A38 models. Thanks, John !

[gaz56]

thanks for the link
gaz

[dazaa]

thanks for the link
gaz

Turns out an old seiko I got of evil bay for £10 is from Feb 1963!