Automatic winding vs. manual wind, watch behaves completely different!
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  1. #1
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    Automatic winding vs. manual wind, watch behaves completely different!

    My SeaGull M308S Always gained some time when I wound it manually every evening and let it rest...

    Now that I am wearing it and let it winding automatically it is perfect accurate to the second!!!

    Is this a normal thing to happen?

    Thanks,
    Bruno in Belgium

  2. #2
    Member Bucks's Avatar
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    Re: Automatic winding vs. manual wind, watch behaves completely different!

    I never manually wind my M308S. It has great power reserve, and as I've said before, once I regulate it and stick to the same wearing regime, it is never more than 20 seconds from true time, ever. One of my most accurate mechanical watches.

  3. #3
    Member Theo Sudarja's Avatar
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    Re: Automatic winding vs. manual wind, watch behaves completely different!

    I have a Chinese automatic watch, the movement speed is very unreliable. It can greatly vary. It can be very fast when fully wound, it can very-very slow when low on power reserve.

    The quirk is, in everyday wear the automatic movement wound just enough power reserve, resulting incredible 4 sec faster a day. That's a COSC standard.

    One day I have this watch sit on the shelf for two days. And let the watch run on very low power reserve. It begun losing 1-2 hours.

    And there's a time when I fully wound my watch every time before sleep. It begun running faster 1-2 minutes in a night.

  4. #4
    Member Theo Sudarja's Avatar
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    Re: Automatic winding vs. manual wind, watch behaves completely different!

    I don't think that is normal. My Seiko doesn't behave like that.

  5. #5
    Mod. Russian, China Mech. Chascomm's Avatar
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    Re: Automatic winding vs. manual wind, watch behaves completely different!

    Quote Originally Posted by BrunoGeuth View Post
    My SeaGull M308S Always gained some time when I wound it manually every evening and let it rest...
    Why do you wind it every evening?
    Quote Originally Posted by Theo Sudarja View Post
    I have a Chinese automatic watch...
    What kind?
    Chascomm
    Moderator, Russian Watches & Chinese Mechanical Watches Forums
    (no, I am not going to list all my watches here)

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    Re: Automatic winding vs. manual wind, watch behaves completely different!

    Quote Originally Posted by Theo Sudarja View Post

    One day I have this watch sit on the shelf for two days. And let the watch run on very low power reserve. It begun losing 1-2 hours.

    And there's a time when I fully wound my watch every time before sleep. It begun running faster 1-2 minutes in a night.
    sr dude, it's normal for all mechanical watch when the power reserve nearly empty
    even quartz watch will run slowly when battery nearly empty
    no-watch can run accuracy at 2-3 last hours before stop
    SORRY FOR MY BAD ENGLISH

  7. #7
    Member Theo Sudarja's Avatar
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    Re: Automatic winding vs. manual wind, watch behaves completely different!

    Quote Originally Posted by Chascomm View Post
    Why do you wind it every evening?
    What kind?
    It was new and I just want to try all the watch features. The features including the hand wound.

    I also writing a review here in this forum. So I might try particular feature in a span of time, and having a good understanding.

    Now I done my review, I don't do hand winding anymore.
    Chascomm likes this.

  8. #8
    Member Theo Sudarja's Avatar
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    Re: Automatic winding vs. manual wind, watch behaves completely different!

    This kind of watch. And I believe you @chascomm had visited and leave a comment on my thread below.

    Review SEKARO Diver with Day Date Month 24hr Complication

    Last edited by Theo Sudarja; 1 Week Ago at 18:43.
    Chascomm likes this.

  9. #9
    Member Theo Sudarja's Avatar
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    Re: Automatic winding vs. manual wind, watch behaves completely different!

    Quote Originally Posted by B24-1 View Post
    sr dude, it's normal for all mechanical watch when the power reserve nearly empty
    even quartz watch will run slowly when battery nearly empty
    no-watch can run accuracy at 2-3 last hours before stop
    Ah.. Yes.. That sounds logical.

    And how about full wound? Do you found your watch run faster?

  10. #10
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    Re: Automatic winding vs. manual wind, watch behaves completely different!

    Quote Originally Posted by Theo Sudarja View Post
    Ah.. Yes.. That sounds logical.

    And how about full wound? Do you found your watch run faster?
    Your sekaro use a seagull st16 movement, which only has 36 hours power reserve (factory's specification) and 42h reality (i can even run over 42h but very slowly). So dont supprise about 2 days without winding watch not run accuracy, because its power run out
    By the way, watch with full-wound will run faster when it half-empty in same conditions, sure. You can check it with a timegrapher
    Ps:my english is too bad, its hard to write a long comment, so dont mind if i have any mistake, thank you
    SORRY FOR MY BAD ENGLISH

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