Seiko 7A38 - by the numbers



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Forum Home > 7A38-xxxx Model Specific Area > 7A38-7030 SJS018 All-Titanium (JDM only)

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James' original topic title: Question for the boss! has since been edited by Admin. :P

So i'm browsing through the 1985 Seiko catalogue (that is stored online er...elsewhere)

And I happen upon the 7A pages.  They have an enticing array of the Giugiaro range, plus an impressive array of rarely seen types all priced between 30,000 and 55,000 Yen (c. £230-£430 converted into today's money, not accounting for inflation, Japanese market crashes etc etc etc)

Then in amongst all this 7A porn is this (the one on the left):

Weighing in at a hefty 100,000 Yen (c.£786)!

Impressed? Well.  Mmm... I'm not particularly.  I like the 'Space-Age' pushers, but apart from that it doesn't scream 'creme-de-la-creme' to me? (unless you're using the Grand Seiko, less is more, simplistic philosophy, but, you get my point, yes?)

And it was double the price of all the other uber-alluring ones.

However.  I've not seen one in the flesh.  Is this really the jewel in the crown?  Does anyone have one?  What the hell is it?

Many questions, few answers.  Over to you, Paul.

September 16, 2012 at 5:02 PM Flag Quote & Reply

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The questions have mostly already been answered, at some considerable length - over two years ago, James. ;)

Don't you remember this 'little' thread on the RLT watch forum ?

The Rarest And Most Expensive Seiko 7Axx Of Them All ?

It’s a 7A38, naturally – my next incoming, (he says fingers crossed) …

I guess I need to get cracking on writing up some more of these topics on here, to satisfy our hungry readership. 

September 16, 2012 at 5:19 PM Flag Quote & Reply

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Just to keep the rabble at bay troops happy, here's a couple of wrist shots of my own 7A38-7030 that I've posted in the WRUW thread.

It's not exactly a pristine example, but given the rarity of this particular JDM model, I got it for a good price - thanks to José Sotto. :)

September 16, 2012 at 5:41 PM Flag Quote & Reply

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To do this topic justice, this time around, we're going to need some input from another collector (besides myself).

Someone, who in his day, certainly owned the biggest private collections of both 7A38's and 7T59's in the world.

He has two 7A38-7030's (at least) that I know of - they're his favourite 7A38, and he wears them on a daily basis ....

As can be seen in his mugshot photo:

In the interim, here's a couple of slightly out-of focus iPhone pics of his, that he kindly sent me back in 2010:

and detail of the clasp assembly, which ostensibly looks similar externally, but is completely different from other 7A38's underneath:


This was the most recent example of a 7A38-7030 to appear on Yahoo Japan in January 2012 (when it was last re-listed on there).

As I've already got the three auction photos uploaded to my Photobucket, I presume I must have written about it somewhere already.

Yes, I had written something. Check out the bottom of Auction News #1: 

Needless to say, as I'd suspected at the time, Pete later confirmed to me that he'd bought this one as well. :o

September 16, 2012 at 5:50 PM Flag Quote & Reply

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Specification and Buyers Guide - 7A38-7030 SJS018

Size: Approx. 40mm diameter (excluding crown and pushers) x 43mm lug to lug x 11.5mm deep - 10mm lug width fixing.

The model is easily distinguished by its large square-ended pusher buttons, which measure approx. 8mm x 6mm.

Case material: All Titanium, including case-back - metallic grey anodized finish.

Dial: Part number is 7A38705LXB13. Dial face is grey, with predominantly white printing. Sub-dials are matt black.

A matt black dial ring carries the lumed hour batons. The Tachymeter ring is in two parts, grey (numbers) and matt black (marks).

Dial markings: SEIKO (off white raised logo), CHRONOGRAPH QUARTZ; at bottom of dial JAPAN 7A38 705L T Suwa symbol.

Day and Date wheels: White lettering on black background. Second languages seen: Japanese Kanji (only) - JDM model.

Hands: Hour and Minute hands are White (with lume). Sweep second hand (large black boss) and upper sub-dial hands are red.

Seiko crystal p/n: 325W22SN00 - 32.5mm Ø x 1.55mm thick, with polished bevel edge - sapphire rather than (Hardlex) mineral glass.

Case-back markings: Double Wave case-back; SEIKO (serial #) SUWA symbol; WATER RESIST TITANIUM JAPAN J 7A38-7030 [A3].

Bracelet: Seiko p/n YA22A. Tapers from 23mm at case to 16mm at clasp. Fixing by 10mm x 1.5mm Ø shouldered spring bars.

Removeable adjustment links retained by 0.9mm Ø split pins. Although nominally all Titanium, from my memory of dismantling one,

the typical folded construction bracelet links include steel shims. The 30mm long x 16mm 6-adjustment hole Titanium clasp closer,

which is stamped SEIKO is unique to this model. It's connected to the bracelet by a similarly unique stainless steel Z-fold.

Production dates: Serial numbers seen range from 3Dxxxx to xxxxxx - December 1983 to T.B.D.

Geography: Far East - a Japanese Domestic Market model.

Buyers Tips: Red CHRONOGRAPH dial printing prone to fading - sometimes to a pale cream. Although Titanium, the p/n YA22A bracelet is just as prone to stretch and breakage as other Seiko stainless steel folded link construction bracelets. Beware fitment of non-original replacement bracelets, particularly Seiko p/n YB21A, normally found on the later, similar appearing all-Titanium 7T42-7A10.

Price Guide: $200  - $1500 dependant upon condition (beater - NOS).

Rarity Factor: 3/5 - Hard To Find.

September 16, 2012 at 6:05 PM Flag Quote & Reply

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Hello. I'm glad I found this site. I have been looking for more people in the world who own this watch. I own one of these exact models, all titanium. I'd post a picture of it but I don't know how. All the pictures I have are on my SD card. 

I'm looking to get it cleaned, checked out (although I have no issues with it) and have all the gaskets replaced. From what I have gathered, the only place to get these services performed is at SCA in New Jersey. Has anyone else shipped a precious and rare watch to SCA? Any issues to report?

Thanks in advance and I look forward to reading your response.


September 19, 2012 at 10:40 AM Flag Quote & Reply

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Welcome aboard. :)

We try to please, but I will admit I'm well behind in my own self-imposed schedule of writing up these individual 7A38-xxxx  topics. 

So you can thank James for starting this one off, meaning I had to give some kind of a response, even if it was a bit of a 'place-holder'.

To post a picture is relatively easy (but slightly different on this forum). See this topic in the General Discussion section:

If by 'SCA in New Jersey' you mean Coserv, then I suggest you google 'Seiko Coserv' - they seem to get very mixed reviews ....

Not all of them favourable. 

September 19, 2012 at 11:15 AM Flag Quote & Reply

Posts: 6

I do mean CoServ. Thanks for the heads up. I certainly didnt' get any warm and fuzzy feeling when I spoke to them on the phone and your comments back that up.

Be that as it may, I have found a local watchmaker willing to take the watch apart for a cleaning and gasket replacment. Now I just need to get all the gaskets. Can anyone suggest any place other than CoServ to purchase the gasket set for this JDM watch here in the states?

Thanks in advance.

October 3, 2012 at 9:56 AM Flag Quote & Reply

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Try Jules Borel in Kansas City:

I'll post the part numbers you'll need later (once I've looked them up). Sorry for the slight delay.

Not all these parts all are listed in Seiko's bills of materials, so I've had to extrapolate. Trust me. 8)

Case-back gasket is: FH3180B0A

Pusher gaskets (x3): EC0060B0A

Crown post gasket: EC0060B01

There are also two hard nylon gaskets (plastic as Seiko describe) them:



Unless he has previous experience of fitting these gaskets, I would recommend leaving them as is - they have VERY tight tolerances.

October 3, 2012 at 10:05 AM Flag Quote & Reply

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Thanks. That's a big help.

October 3, 2012 at 10:28 AM Flag Quote & Reply

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It's been over a year since I've seen a 7A38-7030 listed on Yahoo Japan Auctions. That last one was documented in the January 2012 #1 Auction News article (towards the bottom): and also mentioned in my third post in this thread.

This example was listed on Yahoo Japan last week, as a 3-day auction with an opening bid price of 5000 Yen:



The auction ended on February 18th - at the scheduled local (Japan) time of 9:24pm. There was no extension - the winning bidder placed his high bid at about 9:12pm local time. It sold for only 27,000 Yen (equivalent to $287.50 / £185) after 17 bids by 4 bidders.

Low for one of these rare all-Titanium JDM models - normally they sell in the 40,000 - 50,000 Yen price range. On the face of it, from the seller's three photos, at least, it appeared quite tidy. The red CHRONOGRAPH script on the dial was faded (as is quite common).


The 'gotcher' was in the description (literally translated by Google as follows):

Seiko Chronograph age 80 generally is in good condition but there is some fine scratches on watch, chronograph operation (start, integration, reset to 0) no problem sending date, day of the week send, no problem fast forward. Glass is intact in my opinion. No discoloration dial you Ari to stop adhesive belt is broken in one place also, the belt itself is about weak 15cm fairly short connecting portion can be substituted by the belt of convex once or modification to Find your own Masu please Watch home because it is a rare model, as well, such as a desk clock ships ....


So it would appear that the bracelet was not only short, but that a link connection was broken - unfortunately not shown in any photos. Then again, it might only have needed something a simple as a missing spit pin replaced (used on the removeable adjustment links).

February 22, 2013 at 4:13 AM Flag Quote & Reply

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Somebody bagged themselves a bargain 7A38-7030 on Yahoo Japan Auctions this afternoon.

I spotted this listing early this morning - a one-day listing, with an opening bid price of only 3,500 Yen. :o

セイコー チタンクロノ 7A38-7030




Which Google transates as follows:

It is more beautiful decent to state basis. It is running out of battery current. At present, the belt will accommodate up to 16 centimeters.


As stated in the very brief description, there were a couple of minor gotchers, in that it was being sold with a run-down battery and if, as the seller wrote, it would (only) fit a 16cm wrist was correct, then it was also very short of bracelet adjustment links. But otherwise it appeared to be in fairly decent cosmetic condition, with the usual fading of the red CHRONOGRAPH dial printing.


Here's how it looked when I first spotted it, with only 11 hours left to run and no bids placed:

You can see from the above screen print, the auction was originally scheduled to end at 3:10pm UK time ....

As closing time drew nearer, bidding was up to 12,500 Yen - then someone bid in the last 5 minutes, so it was extended (twice).

A total of 24 bids were placed by six different bidders, before they surprisingly gave up at a mere 18,500 Yen.

That's equivalent to just $181 US or £111 GBP. Short bracelet or not - somebody bagged themselves a real bargain ! :o

November 28, 2013 at 11:09 AM Flag Quote & Reply

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It's been a while - nearly a year since I last spotted a 7A38-7030. If I hadn't run a quick search on '7A38' on Yahoo Japan auctions this morning, I might have missed this one, because as per the previous example in November last year, again it's only a one-day listing.

セイコー 7A38-7030 チタンクロノ メーカーOH済み/ジウジアーロ 

Google translates the seller's Japanese description as follows:

This is a USED goods, but as the mono back then is the beauty goods. We have collection after OH manufacturer. Breath is the clasp to fit in narrow end of the arm at about 17 centimeters and are suffixed to reverse (you fix of course) is a high-end model made ​​of all titanium in 7A system quartz chronograph that has been adopted in the UK military watch. And it's with a calendar. If you were looking for this model!

Do you like to take this opportunity! I need your help by you in NC / NR of Seiko mania. It is made ​​of Suwa Seikosha of 1984.

As is common in nearly all used examples, the originally red dial printing of the word CHRONOGRAPH has faded to pale yellow and once again, the bracelet is short (of adjustment links) and will only fit a wrist size of approx 6¾". Incredibly with a whopping opening bid price of 89,990 Yen (equivalent to approx. £516.50 GBP / $833 USD) there is actually one bidder:o

October 29, 2014 at 7:15 AM Flag Quote & Reply

Posts: 7

My dad has this watch and I've been looking for replacement links for it for a long time.

A couple of his links snapped so can't use original strap at the moment and finding another has proven impossible. :(

Would anyone know were on earth I can get links or a strap for it?  :)

Posts edited by Admin (to remove quote and unnecessary duplication of photos).

See: PLEASE - Don't quote me !!

November 18, 2014 at 3:37 PM Flag Quote & Reply

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You could try contacting Seiko in Japan (as it's a JDM model), but I wouldn't hold out much hope of success. :(

Obviously you'll need to quote the cal. / case model # 7A38-7030. The bracelet is Seiko p/n YA22A.

November 18, 2014 at 3:53 PM Flag Quote & Reply

Posts: 7

I guess it has got to be worth a try. Its my dads favourite watch and has always worn it alot. I'm surprised it still looks in amazing condition for its age and the amount he wears it. Did I do something wrong in my post as I see it has been edited lol I'm starting to collect Seikos myself :)

November 18, 2014 at 5:08 PM Flag Quote & Reply

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Posts: 40

Originally posted as a new thread: Got myself a (7A38-) 7030 - is it worth anything? by smokedogg on April 22, 2015 at 6:47 AM:

Hi there folks,

I just picked up nice-condition 7A38-7030. I don't know much about watches in general, but I know I like this one.

Not too flashy or big, plus it's nice and light. Oh, and it was made just a few months after me!

The bracelet looks to be the original as well. 

Please excuse the poor photos, my camera is elsewhere at the moment.

You like?

Belated edit by Admin: A post on Reddit by smoke_dogg dated 20th April 2015, telling how he came by the watch (and paid $140 Au.):

April 22, 2015 at 5:56 AM Flag Quote & Reply

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Not bad I suppose. :/ Seen better - owned worse. :P

May 31, 2015 at 12:33 PM Flag Quote & Reply

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This 7A38-7030, fitted with an ill-matching stainless Jubilee style replacement bracelet, was listed on Yahoo Japan auctions in the early hours of this morning by a YJ Store seller.


Google translates the Japanese Store Seller's formatted description as follows:

Seiko / SEIKO ☆ 7A38 ☆ ☆ gentleman quartz ☆ Used (2129W)

June 1, 2015 at 6:04 AM Flag Quote & Reply

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That Yahoo Japan auction for the 7A38-7030 fitted with an ill-matched non-original stainless bracelet ended about half an hour ago.

It sold for 24,000 Yen + 8% VAT = 25,920 equivalent to approx. $206.36 USD /  £135.15 GPB after 39 bids by 4 different bidders.

Going by the (abbreviated) winning ID, it was won by someone outside Japan using the Japamart proxy bidding / shipping service.

June 6, 2015 at 9:10 AM Flag Quote & Reply

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