PRC100 ETA 7750 valjoux
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  1. #1
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    PRC100 ETA 7750 valjoux

    I bought this watch new couple days ago and it is running approximately +15 sec a day. Please can someone tell me is something wrong whit the movement or is this whit in the tolerances for this movement? Please help!!!!!!!!!!!!!

  2. #2
    Member Docrwm's Avatar
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    Re: PRC100 ETA 7750 valjoux

    Quote Originally Posted by djordjepejakovic82 View Post
    I bought this watch new couple days ago and it is running approximately +15 sec a day. Please can someone tell me is something wrong whit the movement or is this whit in the tolerances for this movement? Please help!!!!!!!!!!!!!
    That's on the high side but is within specs for a base 7750 movement.
    -Robert
    Buy what you like, keep what you love, don't spend too much.
    As long as you follow those simple rules - you shouldn't listen to anyone about your watches.


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    Re: PRC100 ETA 7750 valjoux

    Please should I take the watch to the store where I bought it to regulate it or to leave it bee? I need an advice.

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  5. #4
    Member Docrwm's Avatar
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    Re: PRC100 ETA 7750 valjoux

    If it's a full service store with a watchmaker then certainly you can ask. If its just a jewelry store with no genuinely knowledgeable people then I'd leave it be.
    -Robert
    Buy what you like, keep what you love, don't spend too much.
    As long as you follow those simple rules - you shouldn't listen to anyone about your watches.


  6. #5
    Member Likestheshiny's Avatar
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    Re: PRC100 ETA 7750 valjoux

    If 15sec/day distresses you, perhaps quartz watches are more your thing. It can almost certainly be tweaked to run more accurately, but there's nothing wrong with it the way it is. That's within specs.
    CADstraps likes this.

  7. #6
    Member Nokie's Avatar
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    Re: PRC100 ETA 7750 valjoux

    If it's a full service store with a watchmaker then certainly you can ask. If its just a jewelry store with no genuinely knowledgeable people then I'd leave it be.
    Good advice
    "Either he's dead or my watch has stopped"
    Groucho Marx

    "The only reason for time is so that everything does not happen at once..."
    Albert Einstein

  8. #7
    Member Camguy's Avatar
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    Re: PRC100 ETA 7750 valjoux

    Let it settle in for a month or so before deciding. New watches sometimes need a break-in period to get the oils distributed, etc. If it's still running fast in a month, a few minutes on a timing machine and a quick regulation will take care of it.
    Der Amf and simen.torstensen like this.

  9. #8
    Member brrrdn's Avatar
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    Re: PRC100 ETA 7750 valjoux

    +15 a day is ok, however -15 a day makes me angry.

  10. #9
    Member MrCCartel's Avatar
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    Re: PRC100 ETA 7750 valjoux

    if it was mine I would Def. either regulate it myself (which I've done) or have a watch maker do it. all of my autos are within -0 thru +3 seconds a day.
    simen.torstensen likes this.

    Frederique Constant Classics Manufacture – FC710 In-House Movement
    Victorinox Infantry Vintage Chronograph - ETA Valjoux 7750
    Hamilton Khaki Field Pioneer, Team Earth - ETA 2824-2

    Tissot Lady Heart (WIFEs) - ETA 2824
    Citizen Nighthawk Ecodrive (Go-Bag Watch)

  11. #10
    Member CADstraps's Avatar
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    Re: PRC100 ETA 7750 valjoux

    Nothing wrong with that run rate. Maybe a little on the high side, but you'd have to be OCD or a WIS to care too much about 15 seconds.

    Depending on where you bought it, the seller may not have any responsabilities. You can pay to have it regulated (don't do it yourself), but that would come out of your pocket and oput you in the 7 (ish) seconds of deviation neighbourhood, so ask yourself what that kind of accuracy is really worth.

    Just remember - you didn't buy it because of it's accuracy. If your life demanded accuracy of better than 15 seconds/day, a mechanical watch would not have been on your radar. I have mechnicals that range from about $200 to over $10k, and none of them are perfectly accurate (I'd wager that I even have one or 2 with bigger variations than 15 seconds), and yet somehow the sun still comes up every day.
    Influence is like the wind...

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