Thread: Seiko 6139-6005 accuracy

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  1. #1
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    Seiko 6139-6005 accuracy

    Hello all,
    First I must say this is an excellent watch forum.

    I received a non working Seiko 6139-6005 for free. It belonged to my grandfather, the watch is mint, never opened up. I had it serviced locally here in Arlington Texas at a vintage watch shop. The watchman replaced all seals, main clutch spring, a worn gear, and cleaned & oiled movement. The is now running smoothly :). It is running fast though (1 minute per 24 hrs). I called the watchman he said to give it 2-3 weeks to settle in. What does that mean, what takes place during this settle in time??
    What is the realistic accuracy of this movement, so when I take it to the watchman in 3 weeks I'm not expecting something unrealistic as far accuracy when he tweaks it?

    thanks in advance
    David
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  2. #2
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    Re: Seiko 6139-6005 accuracy

    Hey David sweet watch. Settle in means like break in let the oil get to all the proper places. Alot of new seiko's take even longer. Chances are it will need to regulated by yourwatch guy 1 minute per 24 hrs bad. A good watch guy can get that movement down to +/- 3 seconds per and don't settle for anything less.
    good luck Richi B.

  3. #3
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    Re: Seiko 6139-6005 accuracy

    Great watch!A nice gift from your grand father.

  4. #4
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    Re: Seiko 6139-6005 accuracy

    A more realistic accuracy is plus/minus 10 seconds.

  5. #5
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    Re: Seiko 6139-6005 accuracy

    I agree great gift take care of it and wear it. I must disagree a good watch guy can +/- 3 per 24hrs out of that movement +/- 10 is not good tuning don't settle for that David.
    Richi B

  6. #6
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    Re: Seiko 6139-6005 accuracy

    So Which is it +/- 10 or +/- 3?? Of course I want the best accuracy possible what is acceptable to a watch guy? I don't want to get in a pissing contest with him. Thanks for all the advice.
    David

  7. #7
    Member lysanderxiii's Avatar
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    Re: Seiko 6139-6005 accuracy

    +/- 10 seconds a day out of a vintage Seiko is pretty darn good. +/- 3 is shooting for the moon.

  8. #8
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    Re: Seiko 6139-6005 accuracy

    So +/- 10 per 24 hrs is good?? So that means the time will have to reset every 5-6 days to be correct. Bummer. Thanks
    David

  9. #9
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    Re: Seiko 6139-6005 accuracy

    +/- 10 is average for most automatics so thats good. I wouldn't expect much better. its still a respectable number for a older watch.

  10. #10
    Member georges zaslavsky's Avatar
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    Re: Seiko 6139-6005 accuracy

    Quote Originally Posted by yamahaki View Post
    +/- 10 is average for most automatics so thats good. I wouldn't expect much better. its still a respectable number for a older watch.
    i would expect a better accuracy especially if the watch has been serviced.
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