Seiko 7A38 - by the numbers

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Forum Home > 7Axx General Discussion Area > Seiko gives you the Moon - Show us your 7A48s

Seiko7A38
Site Owner
Posts: 9119

I suspect this 1984 Seiko advert was a 'tongue in cheek' dig at Omega, and their NASA-certified Speedy - 'First Watch on the Moon'.



The featured watches are a 7A38-7020/-7029; 7A48-7000/-7009 and a 7A28-7029 - 'The World's First Analog Quartz Chronograph'.

Here's a slightly different version of the same advert, from later in 1984, instead with the two-tone 7A38-702A/-702H on the left side.



So come on Guys - let's see your 7A48s - Post 'em up. I know lots of you have them - I don't do moonphase myself, as a general rule.

Otherwise I'll have to resort to posting photos of other peoples' 7A48s - or maybe even taking the thread albeit slightly.

February 27, 2012 at 11:32 AM Flag Quote & Reply

Seikotik
Member
Posts: 14

HI everyone,

I've been trying to make my collection more specific and have fallen in love with the moonphase.  Although I had a couple 7A28s and a few 7A38s, the 7A48s weren't on my radar.  Now, I can't get it off!

And thanks to Seiko7A38's advice yesterday, I just picked up my first 7A48.  It is a 7A48-5000 two-tone and is brand new or more specifically, NOS.  Everything works amazing on it.  Pictures forthcoming.

 

March 7, 2012 at 2:15 PM Flag Quote & Reply

6309 7049
Member
Posts: 34

28/38/48,  in Italy are numbers from the lottery :lol:

March 13, 2012 at 2:56 PM Flag Quote & Reply

Seiko7A38
Site Owner
Posts: 9119

Otherwise I'll have to resort to posting photos of other peoples' 7A48s ....


In an effort to get the ball rolling (and that's going to be difficult, as I don't actually own any 7A48's myself) ....

I'm posting a couple of photos of 7A48's belonging to another 7Axx collector, who incidentally also happens to be a Paul S. 

I found these two, by accident, while searching an old thread on RLT, looking for something else (but not entirely unrelated). 

I'm sure Paul won't mind me 'borrowing' them - in his last email, he said he would be joining us at some point. ;)



March 20, 2012 at 3:04 AM Flag Quote & Reply

Arpie
Member
Posts: 202

Surprisingly nobody showed a picture about their 7A48 from this forum so far....hmmmm....Am I the first one? :P

 

Please welcome aboard my new & first 7A48-7040.

 

 

 

I knew there are scratches on the crystal so before I received the watch I did a quick search for the original crystal which has a polished bevel edge.  Interestingly the original crystal (p/n: 315W22GN00)  is still available at Cousins for a mere £9.05 which I found it a bit pricey. (Or maybe not if we know the fact that this glass was only made for 7A48-7040 and the full gold version 7A48-7030)

By the way I ordered a Cousins cheaper 1.5mm flat F150CMH315 crystal and a Sternkreuz MSM315 just in case. (I order this from Cousins last Thursday and I still haven`t received it.....I think the Rayal Mail lost it! :o )

I`ve received the watch yesterday and immediately recognised that the original glass is very-very slighlty domed. Ooouuups :) An unexpected surprise :)

Nevermind, if I ever get my package I will try to fit the cheapo Cousins or Sternkreuz crystal and have a look. I don`t insist to the original domed glass as the dial is perfectly readable without magnifying anything. But if it looks ugly with the flat crystal, I will go for the original 315W22GN00.

 

As far as the strap concern it is the original one which has to be replaced as it is in bad condition and full of DNA from the previous owner. Here is the point where I am happy to take any advises! What kind of strap should I fit? Black leather? Tan leather? A nato military style? Or a more modern blue velco strap...what about  a green one?  A pink? :P

Any suggestions are welcome!

March 28, 2012 at 9:29 AM Flag Quote & Reply

Seiko7A38
Site Owner
Posts: 9119

Surprisingly nobody showed a picture about their 7A48 from this forum so far....hmmmm....Am I the first one? 

Well done, Arpad !!   I was almost at the point of uploading some photos of my 7A54-7009 (7A48 pocket watch). :D


As far as the strap concern it is the original one ....

Are you sure it is the original Seiko strap, Arpad ? Check out this NOS 7A48-7040: http://www.ebay.co.uk/itm/220962223867


Here is the point where I am happy to take any advice! What kind of strap should I fit?

Whatever you decide, and straps are very much a personal choice thing .... Promise me you will NOT 'stick it on a NATO' ! 

A classic looking dress watch like that really deserves a suitably dressy strap. Think dark tan (mock) crocodile or alligator. ;) 

March 28, 2012 at 11:27 AM Flag Quote & Reply

Sir Alan
Member
Posts: 451

Here's mine a 7A48 7040 from 1985 - it arrived today from Germany.  The crystal is badly scratched and the strap (Breitling) has seen better days but does match quite nicely being quite thick.


I'll order a new crystal (Seiko p/n 315W22GN00) and fit it,  and carefully clean up the case. I'm not sure about removing the bezel - I don't want to damage the edge on it.


It also needs a new crown - the plating has worn badly.






I found the manual online here:


http://www.network54.com/Forum/78440/thread/1067025580/1077288510/Seiko+7A48+instruction+manual+online%2C+well%2C+sort+of...



and had a go at setting the moonphase, but the scratched crystal didn't help and I wasn't sure about the base setting the manual suggests:


" .... where the moon peers slightly over the left mountain ..."


March 31, 2012 at 2:41 PM Flag Quote & Reply

Pascal S
Member
Posts: 1

Here are a couple of picture of the 7A48-7010 I inherited from my Dad. I've been planning to sell this watch for quite a while but never got around to actually doing it...



July 10, 2012 at 9:04 PM Flag Quote & Reply

Sir Alan
Member
Posts: 451

Very nice :D


July 11, 2012 at 4:08 AM Flag Quote & Reply

7ARCool
Member
Posts: 168

Nice 7A48, probably my favourite  SEIKO moonphase.

Nice chunky "sports 100" design and Ferrari 7A influences with the pusher/crown design.

Maybe if you do decide to part with your inherited Seiko,you should list in the forum sales thread.

I would keep it myself and wear it. :D

July 13, 2012 at 5:06 PM Flag Quote & Reply

nova
Member
Posts: 109

Is there  a silver 7A48-7010 version have been available?

I found a picture of a disassembled silver one  but don`t find any data on oceania or other pictures of a complete silver coloured one.

I would  be interested in a silver 7A48

August 20, 2012 at 10:55 AM Flag Quote & Reply

Seiko7A38
Site Owner
Posts: 9119

Andre.

You're probably referring to the 7A48-701A.

It is still a two-tone, but with much less gold plating - the bezel surround is mostly stainless, and the dial is white.

The last one I can remember seeing on eBay was in December last year: http://www.ebay.co.uk/itm/260916048223



The eBay listing photos aren't very good, but I happen to know that particular 7A48-701A was won by a member of this forum ....

who appears to be building up a fairly substantial collection of 7A48's. So perhaps we can ask him to post some better photos of it. ;)

August 20, 2012 at 12:05 PM Flag Quote & Reply

nova
Member
Posts: 109

nova at August 20, 2012 at 10:55 AM

Is there  a silver 7A48-7010 version have been available?

I found a picture of a disassembled silver one  but don`t find any data on oceania or other pictures of a complete silver coloured one.

I would  be interested in a silver 7A48

I would like to have this dial.

But I don't know why it looks gold in a 7A48-7010.

Maybe it is a trick with the colour of the crystal (i own a see through caseback on a kinetic with that "gold" effect)


August 21, 2012 at 2:42 AM Flag Quote & Reply

Seiko7A38
Site Owner
Posts: 9119

I think I may be going to disappoint you, Andre, because although it certainly looks silver in that photo, the 7A48-7010 dial is gold.

You've obviously already looked at what's shown on the Seiko Oceania database:




That photo you posted came from a set of 7 on the SCWF photo database:

http://timeuniverse.com/photodatabase/watches/chrono_quartz/7A48-7010/index.html


Here are 4 more from the same set. Note that although the time may be slightly different (9:05 assembled versus 9:35 shown on the loose movement - photo #4 in the set), the date and moonphase are set exactly the same. Which indicates that it is the same dial.




Looking at the blue background used, I suspect those photos were originally uploaded by Hung Pham (to his own photo database).

I'll ask him. Something else worth mentioning, is that like many examples of 7A48-7010 I've seen (on eBay), this one also appears to have had all the presumably worn gold plating polished off the bezel. Note the case-back is stamped: ST. STEEL (twice) SGP BEZEL.

August 21, 2012 at 4:52 AM Flag Quote & Reply

Seiko7A38
Site Owner
Posts: 9119

But I may be wrong about that last part. ;)

Look at that table again. It would appear that there were two subtly different versions of 7A48-7010 - but both with 'GOLD' dials.


SPV004 is presumably the same as Pascal's example with the all-over gold plated bezel.

That uses a 7A48 dial part number 7020XG14 - with a bezel part number 82333541. (A bezel p/n ending in 1 usually signifies SGP.)


The other product code, SSJH994 uses a different dial p/n 7030XG14, with a different presumably two-tone bezel p/n 82333543.


Look closely at the dial in Pascal's 7A48-7010, and not only does it have SPORTS 100 printed on it, but you can read 7A48 7020. 8)

So presumably the other gold dial (not silver - it's a badly over-lit photo) without SPORTS 100 will have 7A48 7030 printed at bottom.


I think this probably still needs input from someone who knows a bit more about 7A48's than I do (and that's not a lot !) :D

August 21, 2012 at 5:25 AM Flag Quote & Reply

Seiko7A38
Site Owner
Posts: 9119

PS - If you really want to get confused by Seiko's dial numbering nomenclature, think about this ....


Most WHITE dials are shown on Seiko's database with a dial colour field of SILVER. White doesn't appear to exist as a colour option.

The 7A48-701A, which I mistakenly referred Andre to, isn't the best example because it's bill of materials / parts list is sadly missing.

But the dial code for that one is 7040XS14 - XS signifying Silver. Trust me, in the metal - it's White ! 8)

August 21, 2012 at 6:01 AM Flag Quote & Reply

nova
Member
Posts: 109

You are d.. right with that database colours.

That is the reason why i think that there could be a silver variant  :)

Maybe "someone" knows a bit more

August 21, 2012 at 6:10 AM Flag Quote & Reply

Seiko7A38
Site Owner
Posts: 9119

Andre.

Here are 3 photos of that same (Non SPORTS 100) version of the 7A48-7010, which I saved from an eBay auction in November 2011.

The watch was without bracelet, and I was thinking about converting it into a 7A54-esque pocket watch. The dial colour is clearly Gold.



August 21, 2012 at 8:03 AM Flag Quote & Reply

nova
Member
Posts: 109

It is a gold coloured dial

I can confirm that the dial of that 7A48-7010 is gold color, not silver. I took the pictures next to a bright window, so perhaps the dial color got 'washed out' a bit when the dial is exposed directly to the sunlight (vs sitting inside the case with the dial ring surrounding it).

 

I hope that helped.

 

(Quote from Hung Pham email)

August 21, 2012 at 2:31 PM Flag Quote & Reply

Seiko7A38
Site Owner
Posts: 9119

Andre. 

Perhaps now you can understand the reason why I deleted the photo of your 7A38-7270 which you uploaded to the photo gallery.

When you share photos in any such gallery, for reference purposes, they need to be not only the best example of that watch, but

.... they also need to show all the correct fittings, finishes and colours. Whereas Hung originally shared that badly-lit photo of the

7A48-7010 dial (on his own site) with the best of intentions, it ended up confusing you into thinking there was a silver dial version.


There are already a number of other photos on the SCWF photo database with watches fitted with incorrect bracelets, hands etc. :roll:

Some SCWF members have recently been questioning the validity of photo sets in their own database (inherited from John Gauch):

http://www.thewatchsite.com/index.php/topic,34300.html

August 21, 2012 at 2:43 PM Flag Quote & Reply

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