Changing in Quartz accuracy when you wear/don't wear the watch

Thread: Changing in Quartz accuracy when you wear/don't wear the watch

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  1. #1

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    Changing in Quartz accuracy when you wear/don't wear the watch

    Hi guys,

    Have any of you observed a changing in a Quartz watch accuracy when this watch is worn or let unworn?

    I observed a few watches and have the impression that a Quartz movement becomes fast when unworn and it is a bit slow when worn every day. I am talking about a difference of a few seconds /month.

    Is it just my impression (or maybe other factors) or it is possible to have such a difference?

    Thanks,

    Johnaeus

  2. #2
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    Re: Changing in Quartz accuracy when you wear/don't wear the watch

    it depends on the watch's alignment with the earth's magnetic
    field and an imaginary axis called the "Thorval" that spans from
    Greenwich to a planet orbiting the Franulguise nebula :)
    My Watches .. click here!

    incoming .. Seiko DX, Seiko LM, two almost identical Seiko Bullhead chronos

  3. #3
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    Re: Changing in Quartz accuracy when you wear/don't wear the watch

    Quote Originally Posted by croolis View Post
    it depends on the watch's alignment with the earth's magnetic
    field and an imaginary axis called the "Thorval" that spans from
    Greenwich to a planet orbiting the Franulguise nebula :)
    's a good answer.

    Haven’t seen such when-not-worn inaccuracies happening w/my Citizen Eco-Drives; just keep ‘em under a light source regularly and they pretty much stay accurate (according to certain official timekeeping sources as well). It’s when I don’t let ‘em get light is when they start to slow down, even speed up (two-second interval thingee) sometimes.

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  5. #4
    Member BruceS's Avatar
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    Re: Changing in Quartz accuracy when you wear/don't wear the watch

    I've suspected the same a few times. Might be down to temperature changes if not thermo compensated? If you're wearing it, it'll be warmer. I'm just guessing.
    Wear what you like.

  6. #5

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    Re: Changing in Quartz accuracy when you wear/don't wear the watch

    According to the information in the HEQ(High End Quartz) forum, it does appear that wearing a non HEQ quartz constantly does affect performance, and vice versa.

    Whereas an HEQ watch(thermo compensation) isn't affected by how much the watch is worn, because it compensates for the temperature change.

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    Re: Changing in Quartz accuracy when you wear/don't wear the watch

    Quote Originally Posted by Johnaeus View Post
    Hi guys,

    Have any of you observed a changing in a Quartz watch accuracy when this watch is worn or let unworn?

    I observed a few watches and have the impression that a Quartz movement becomes fast when unworn and it is a bit slow when worn every day. I am talking about a difference of a few seconds /month.

    Is it just my impression (or maybe other factors) or it is possible to have such a difference?

    Thanks,

    Johnaeus

    I have imagined that I saw such a change but to quantify it I think one would have to conduct a proper experiment over several weeks and with the particular watch, because I'm sure different watches behave differently. And I suspect that, if there is such a change, its extent would probably vary with the temperature in which the unworn watch is stored.
    Since Mr Seiko and Mr Citizen both say that their thermocompensated watches' accuracy specs depend on their being worn daily (Citizen says 12 hours a day and Seiko says 8 hours), it seems reasonable that not being worn would produce a measurable deterioration. But how much, I'm sure would vary with circumstances.

  8. #7

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    Re: Changing in Quartz accuracy when you wear/don't wear the watch

    Mranwhile I red also on the Tissot site a reference to a change in accuracy based on different temperatures. But the watch that I am analysing is 3 sec fast in 2 weeks (not worn) and it is supposed to be +1 sec / per month (at least from other owners experience). I'm really curious how it will change after being worn.

    I did not wear it yet because, if not happy with the acuracy, I can still change it if not worn.

    Johnaeus.

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