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Discussion Starter #1
Hi,


I'm new here, but i'm collecting watches for a while now. I do own a couple of 6139 and 6138, though.


I've recently (yesterday) acquired a Seiko 6105-8000 and i have a question regarding the serial number on the back, 8405491. Also on the back there is "Japan X". What does it means? Normally I've only seen six digits serials on Seikos.


Thank you,
Mihai
 

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Seiko switched between 6 and 7 digits in the late 60's. Your watch is from April of 1968. I am not certain what all the various case markings of Japan X or Japan A are, it could have been a code for which line or factory they were made in. Others may have a more solid answer on this?


Congrats on acquiring a 6105-8000, please post pictures!!
 

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Isthmus said:
Here is a post that should help you learn how to interpret the most important caseback markings on your seiko:

How to Read Seiko Reference Numbers

Good link Gabe. There is one mistake on it though in that the author states that 'S' is used for September, when in reality September is represented by a '9'.
 

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thank you for the useful link/info. Please let me know anything else you can based on the pictures, as this is my first Seiko diver and I'm clueless.
here are some pics...sorry for the quality, i'm using my DSLR as point-and-shoot.




 

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Congratulate! Original & nice 6105-8000 :bravo_2:

mihai33 said:
thank you for the useful link/info. Please let me know anything else you can based on the pictures, as this is my first Seiko diver and I'm clueless.
here are some pics...sorry for the quality, i'm using my DSLR as point-and-shoot.




 
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