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Seiko Calibre 6139 Amateurs Guide

16K views 25 replies 25 participants last post by  seveneightnine 
#1 ·
After running out of watches to play with Polly has finally got round to finishing our 6139 tinkerers guide :)
 

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#2 ·
Mike, in my book, Watchmaker is as Watchmaker does. Not sayin' formal trainin' ain't important, but this is a great poster child for the school of Self-Taught! FWIW and AFAIC, you're a watchmaker! Thanks so much for all the effort that went into this, and thanks again for the generosity of sharing it! (Sure hope Poly actually pulled her weight in this!)

:1rij:


:singing:
 
#3 ·
Wow Mike that is Unbelievable ! THANK YOU !

I just got another 6139- to serve as the new movement/donor for my broken one that I want to restore.

Now I have to check if they are both -A or -B. I've got a 50:50 chance.
 
#18 ·
Thank you very much, Mike! I'm just getting ready to embark on my horological journey. I don't plan on starting with my 6139, but I'd like to get there some day :)
 
#20 ·
Only had my 6138-8030 and this guide has already helped!

Thank you Polly!!!
I received my 6138-8030 yesterday and noticed a couple issues straight away.
Firstly, the second hand would not make it all the way around the dial. I found that the inner seconds bezel was loose from the dial and the second hand was being stopped by it.
Next, there was a fleck of dried glue floating around under the crystal.
I decided to disassemble up to the point where I could clean the dial and reattach the inner bezel. Once apart and both tasks completed, I attempted to reinstall the winding stem/crown, but no amount of fiddling seemed to work. Researching, I found this guide and the instruction: "To fix this problem you will need to insert the stem at an angle to push into the end of the clutch (not enter its hole) this will then drag the yoke from under the setting lever and allow the setting pin to re-enter the stems setting groove."
This worked and the rest of the reassembly proceeded unhindered.
The wound watch has kept good time for the last 24hrs but I have yet to put it on the timegrapher.
Overall I am impressed and excited about the quality of my first Japanese 1970s chronograph and looking forward to collecting and working on more.

Thanks again!

Sincerely,
MjB
 
#25 ·
Hello Guys
is there a section for watch parts ?

I am overseas and my watchmaker is fixing my 6139b

The minute recording wheel is broke, I think part number 902612.

The strange thing is we found another one off a parts watch but it also broke while installing.

Is there a special technique to install them and where can I find this part please

i dont see them come up under that number on ebay
 
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