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Ah, you mean the oldest. I was going to post a newer model that went into production 2009 and I have seen a 0 dated caseback for this year (no pic sorry).

I have seen this on Yeoman's weblog - SKZ283 model "Starfish"
 

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docrwm said:
Ah, you mean the oldest. I was going to post a newer model that went into production 2009 and I have seen a 0 dated caseback for this year (no pic sorry).

I have seen this on Yeoman's weblog - SKZ283 model "Starfish"
Sorry i mean a 7 digit serial number instead of the newer 6 digit # they were last used in the late 60s i believe.
 

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So after 5 minutes of going through all my late 60's watches not one of them has a 7 digit caseback #, so now I need one.


Thanks thread....
 

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I would be interesting in knowing why there are so many six digit serial numbers prior to 1970. ???

TheTigerUK said:
Sorry i mean a 7 digit serial number instead of the newer 6 digit # they were last used in the late 60s i believe.
 

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I'm a little suspicious of that 6105 caseback. From what I've seen, everything coming out of Suwa after mid 1968 was six-digit . I've seen several 7-digit serials on 8000/09s to that period (and there have been a few posted here in the past and one on the database). I wonder if that caseback is a service part, but I'm not sure how that would explain the serial number. There were certainly watches that date before the one you've pictured, made at Suwa, that have six-digit numbers. A puzzle.....

EDIT: Sorry, but I meant to write that I have seen 8000/09 casebacks to mid '68 (I was double-tasking -- always risky when trying to post....) I've amended my original post. Hopefully someone who has seen a lot of these in hand will reply (Mike? Rick?)

paul
 

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Hi 6105-8000=#8405538 Rest Dial/Proof case====April-1968

6105-8000=#8614816- Proof/Proof Case======June-1968


6105-8000=#9101391-Proof/Proof==========Jan. 1969


6105-8000=#9705611-rest Dial/Proof Case=====July 1969
here are a few 800X I found I think I have a 8009 also /w 7 #s?


I THink?? I have a 6105-8110 7 Didget have to look


April 1968 is Close to the Start BTW all are SUWA
Regards
 

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Cheer up young fella, Does' it mean ? Example your Jan 1969 ends with the #s --300 and my Jan 1969 ends w/# 391 Does that mean that Mine
was 91 Watches latter, is That how the Numbers work?????
 

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Discussion Starter #13
water70proof said:
I'm a little suspicious of that 6105 caseback. From what I've seen, everything coming out of Suwa after mid 1968 was six-digit . I've seen several 7-digit serials on 8000/09s to that period (and there have been a few posted here in the past and one on the database). I wonder if that caseback is a service part, but I'm not sure how that would explain the serial number. There were certainly watches that date before the one you've pictured, made at Suwa, that have six-digit numbers. A puzzle.....



paul
I think from what i can make out the only thing you can be 100% sure about with Seiko is that you can not be 100% sure !! ;)
 

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Hi all , just looked at my two and they are - 6105-8000 - proof/proof 8508318 - may 1968
6105-8009 - resist / resist 960029 - june 1969

both running strong . :-\
 
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