Seikomatics that I love

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I've managed to track down a Blue Yacht!
But this one has a slightly different dial, I didn't know these existed before I spotted this one. No worries of a fragile chapter ring with this version 馃憤
 
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I've managed to track down a Blue Yacht!
But this one has a slightly different dial, I didn't know these existed before I spotted this one. No worries of a fragile chapter ring with this version 馃憤
Very nice
Your Caseback ref no is 13034E. Mine is 13034. Wonder what difference is. Do you have inside Caseback photo for serial no?
Congrats it鈥檚 a beauty
 
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Very nice
Your Caseback ref no is 13034E. Mine is 13034. Wonder what difference is. Do you have inside Caseback photo for serial no?
Congrats it鈥檚 a beauty
Mine is a J13058 with a very faded dolphin on the caseback

 
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Mine is April 1961


Edit- for clarity I have added photos of dial and outer caseback
Edited:
 
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I've managed to track down a Blue Yacht!
But this one has a slightly different dial, I didn't know these existed before I spotted this one. No worries of a fragile chapter ring with this version 馃憤
WooooW !!! congrats!!
 
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Interesting, news to me too!

mine is also an E

From Sept 61...

@dapellegrini and myself did a bit of a deep dive into them, he's got a non E from March, it'll be interesting if anyone has a later non E. Dan also managed to spot a couple more dial variants.
 
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Mine is April 1961
Excellent, so the E's arrived after April 馃憤 now will have to find one from May.
 
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As @Leeroy mentioned, I've got these three:



Two of them cleaned up fairly well, but they all have some damage - here's the main two dial variants - minute hashes on the dial vs minute hashes on the inner bezel



This probably merit's it's own thread... From what I can tell there are at least 4 different dial variants, plus we see J13034 and J13024E case references + some have an E as the fifth line of text inside the case back. I don't mean to thread jack - and don't post as much on this board so not sure if I should post a ton of photos with additional info here?
Edited:
 
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This probably merit's it's own thread... From what I can tell there are at least 5 different dial variants, plus we see J13034 and J13024E case references + some have an E as the fifth line of text inside the case back. I don't mean to thread jack - and don't post as much on this board so not sure if I should post a ton of photos with additional info here?
Thanks Dan I think its ok to continue this Blue Yacht deeper dive here in this thread as it is all about Seikomatics- and we already have our Seikomatic audience here. So I say post away we are always interested in your collection and knowledge.

So far I have learned that
1. Blue Yachts are uncommon, produced only in 1961 and 1962
2. there are 2 different closely related reference numbers on outer caseback, J13034 and J13034E and the E reference is later
3. I have posted a J13034 with SN inside caseback of April 1961, and rumor has it that you have same non-E from March 1961, and others posted here with E ref are all later SNs
4. There are different dial variants, some with minute track on chapter ring, and some with minute track on dial.
5. There is reference to article by Anthony of Plus9time

So please share what else you have!
 
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Sorry, I mis-typed. Here are the 4 (not 5) dials I am aware of:

Dial #1 - w/ minute markers on dial. Dial Code (I believe) reads MAJ13 [hash] H207



Dial #2 - w/o minute markers on dial. Dial code MAJ13H207 SD


Dial #3 - w/ minute markers. Dial code MAJ13H207, no [hash] in the middle and no SD at the end



Dial #4 - w/ minute markers. MADE IN JAPAN above unknown dial code, and AD instead of SD glyph / logo!


Then we have 3 variations on the inside of the case backs...

Case back #1: No E anywhere



Case back #2: E as 5th line of text



Case back #3: E at end of model number

Edited:
 
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As for my examples... for further research:

March 1961, No-E
https://photos.app.goo.gl/KS1prUK4qV58hqiu6

June 1961, J13034E and MA / E
https://photos.app.goo.gl/LqqoKcSyKzJEEfAL8

August 1961, J13034E and MA / E
https://photos.app.goo.gl/4ip6a1FWENLX1V7UA

EDIT: If I was taking this just a little more seriously (and I still may find the bandwidth to do so) - I would save off the photos of each of those sales listings before they disappear - for posterity sake. It would make A LOT to go through in a thread like this!
Edited:
 
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I would save off the photos of each of those sales listings before they disappear - for posterity sake. It would make A LOT to go through in a thread like this!
I looked at the photos from Japan site none had open casebacks to check dates and photos not great. But looks to me like few examples with no minute marks on dial are likely missing the chapter ring. I couldn鈥檛 easily correlate dial type with E or no-E casebacks.
 
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Ya, it's going to take more data. @Leeroy surprised me with his discovery of a second dial type. I was even more surprised to find at least 4 dial versions - with 3 of those have significant differences beyond the dial code.

Where the E fits in is going to take more information - and I am curious to learn if the dials fit into specific date ranges and or E usage cases.

I think one challenge is going to be that some (many?) Seiko collectors swap parts - in this case I would not be surprised to learn of nicer case backs being swapped onto nicer dials - which further muddies the picture. The crusty, worn out examples are likely the most trustworthy.

I will follow along here - in case any more data points appear.
 
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I don't think there's any correlation between the E's and the Blue Yacht dials, both were produced before and after May / June '61 when Seiko started their "Seiko Exterior E Standard" so both dials came in E and non-E cases. A few more models changed to E's around this time eg: But we're drifting away from Seikomatics so probably will have to start a new thread to discuss whether the E stands for E Standard or not.
 
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Here's my 3 Silverwave Seikomatics - next to their slightly downmarket Sportsmatic counterparts...