Auto or Manual Winding

Thread: Auto or Manual Winding

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  1. #1
    Member ipswitch's Avatar
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    Auto or Manual Winding

    Guys, theres this question i've been longing to ask.
    Which is more accurate? Auto winding or Manual Winding?
    whats the longest power reserve for auto winding or manual winding?

    Thanks all

  2. #2
    LUW
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    Re: Auto or Manual Winding

    I don't think auto or manual winding will affect the accuracy of a watch, only it's state of wind.
    Cheers!
    Luciano

  3. #3
    stuffler,mike
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    Re: Auto or Manual Winding

    We had that issue already here on WUS, no much difference.

    Don´t know the longest power reserve but 8 days is quite long, isn´t it. The Eberhard & Co 8 Jours is a nice example.

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  5. #4
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    Re: Auto or Manual Winding

    Thanks LUW, thanks mike. i thought manul winding is more accurate because we dont have to worried about spring, just see the power reserve indicator(meaning if its low, than wind it) :)

  6. #5
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    Re: Auto or Manual Winding

    Quote Originally Posted by ipswitch View Post
    i thought manul winding is more accurate because we dont have to worried about spring, just see the power reserve indicator(meaning if its low, than wind it) :)
    An automatic has the potential to be more accurate because it can keep the mainspring consistently wound. A watch keeps better time if the mainspring is in the upper half of it's wind state. When the spring starts to wind down, it loses power and doesn't have the same amount of torque to drive the gears, which in turn don't push the balance & hairsrping assembly to it's full oscillation.

  7. #6
    Member ipswitch's Avatar
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    Re: Auto or Manual Winding

    Quote Originally Posted by ulackfocus View Post
    An automatic has the potential to be more accurate because it can keep the mainspring consistently wound. A watch keeps better time if the mainspring is in the upper half of it's wind state. When the spring starts to wind down, it loses power and doesn't have the same amount of torque to drive the gears, which in turn don't push the balance & hairsrping assembly to it's full oscillation.
    Now that helps a lot

  8. #7
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    Re: Auto or Manual Winding

    How about auto winding, i know that valjoux can withstand to 46 hour power reserve, could there be any longer than that besides chronograph

  9. #8
    stuffler,mike
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    Re: Auto or Manual Winding

    Quote Originally Posted by ipswitch View Post
    How about auto winding, i know that valjoux can withstand to 46 hour power reserve, could there be any longer than that besides chronograph
    Yes.

  10. #9
    Member TimeSeeker's Avatar
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    Re: Auto or Manual Winding

    8 days.

  11. #10
    Haf
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    Re: Auto or Manual Winding

    8 days is nothing compared to the 31 days power reserve of the A Lange & Sohne Lange 31

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