Chronograph question
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  1. #1
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    Chronograph question

    Is there any downside to letting the Chronograph run 24/7? Anyone knows if chronos are built so that they can run 24/7, effect on the base time, or anyone have experience with letting theirs run 24/7? Thank you for information.

  2. #2
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    Re: Chronograph question

    It's a question of premature wear of the movement versus keeping the oils in the chronograph gear train evenly distributed (assuming you're talking about mechanical chronographs). Generally, there isn't a whole lot of point to keeping the chronograph running all the time, apart from if you like a sweeping (central) second hand. The chronograph hands would stop anyway once it reaches it's maximum timing capability, meaning you would have to restart it every 30 minutes/hour/day/et cetera.

    If you're referring to quartz, the battery will not last as long (twice as many hands are moving), although some quartz chronographs have a sweeping second hand anyway.
    Last edited by Marcus_Leonardo; June 25th, 2013 at 05:44.

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    Re: Chronograph question

    Yes I was referring to mechanical chronos and wanting the chrono to run 24/7 for the sweeping 2nd hand as well as using it as a 2nd time zone for chronos that contain both the hour and minutes. I was not aware that the mechanical chrono will stop at maximum timing. There goes my idea of using that as a 2nd time zone indicator. Thanks for info

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  5. #4
    Member akasnowmaaan's Avatar
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    Re: Chronograph question

    Every mechanical chrono I've seen warns against doing that.
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    Re: Chronograph question

    They're not mechanical, but the Seiko Alarm Chronograph series has a smooth sweeping second hand, and can be set for use as a GMT watch. Perhaps you might like to look into them.

  7. #6
    Member mpalmer's Avatar
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    Re: Chronograph question

    This is not recommended. But if it is what trips your trigger, why not? Just service it when it needs serviced, or reset the time if it taps the power reserve.
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    Re: Chronograph question

    I have often let mine run continuously while travelling to use as a 2nd time zone.
    It didn't stop when it reached the 12 hour mark however (7750)
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  9. #8
    Member Brisman's Avatar
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    Re: Chronograph question

    Quote Originally Posted by Marcus_Leonardo View Post
    It's a question of premature wear of the movement versus keeping the oils in the chronograph gear train evenly distributed (assuming you're talking about mechanical chronographs). Generally, there isn't a whole lot of point to keeping the chronograph running all the time, apart from if you like a sweeping (central) second hand. The chronograph hands would stop anyway once it reaches it's maximum timing capability, meaning you would have to restart it every 30 minutes/hour/day/et cetera.

    If you're referring to quartz, the battery will not last as long (twice as many hands are moving), although some quartz chronographs have a sweeping second hand anyway.
    Mechanical Chronos don't stop at a maximum, they just keep on going.

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    Re: Chronograph question

    I think most chrono gear teeth have straight edges rather than involute shape in order to engage easily - thus, these teeth are more prone to wear.

  11. #10
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    Re: Chronograph question

    Chronos are not designed to run 24/7 so the result will be more rapid wear on the guts of the watch. I have read that you can run them full time but have to be prepared for the increased servicing costs that will inevitably result.

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