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  1. #1
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    "Wristwatches with 1.5 Seconds time error per24 Hours"

    http://www.diytrade.com/china/pd/109...r24_Hours.html

    I've always dreamed about having a watch that doesn't work correctly

  2. #2
    JUB Addict Audio Tech's Avatar
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    Re: "Wristwatches with 1.5 Seconds time error per24 Hours"

    Actually that's pretty good for a mass produced watch. Yes, quartz crystals are not 100% accurate. They drift slightly with temperature. The most accurate clocks are temperature compensated or have an ovenized crystal running at a constant temperature.

    I actually have an atomic time standard that's accurate to one second in 1000 years. I use it to calibrate other clocks and test equipment.

    BTW, it says LESS than one second in 24 hours. A lot of watches SEEM accurate because they speed up and slow down depending on temperature, so they tend to "average out".

    OK, that was my science lesson for the month!

  3. #3
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    star-warrior's Avatar
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    Re: "Wristwatches with 1.5 Seconds time error per24 Hours"

    That's one minute per 40 days. One hour every 6 and a half months or so.

    None of the clocks in our house has exactly the same time on them.


  4. #4
    Last Chance Jubber justsimon's Avatar
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    Re: "Wristwatches with 1.5 Seconds time error per24 Hours"

    Most (good) watches gain or lose a second or more per day. Rolexes generally run at +/- 4-5 seconds/day. Bulova's precisionist (called the world's most accurate watch, though I'm sure it's not) is a quartz and therefore more accurate than a mechanical watch. Bulova claims a 10 second per year accuracy (results have varied).

    My point is that while accuracy is an important factor in a timepiece, some variation should be expected. Losing less than 10 minutes in a year is negligible. That said, the watch in the link is a piece of crap.

  5. #5
    JUB Addict teadrinker's Avatar
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    Re: "Wristwatches with 1.5 Seconds time error per24 Hours"

    Why are people so finicky about precise time? Unless you're running a very precise experiment, plus or minus a few seconds (in fact plus or minus a few minutes) isn't really going to make that much difference. I love wearing a watch, but near enough is good enough for me. If I want more exact time, I get it from my phone which is linked to an ntp server.

    -T.

    "Thank God for tea! What would the world do without tea? how did it exist? I am glad I was not born before tea." (Sydney Smith)

  6. #6
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    Re: "Wristwatches with 1.5 Seconds time error per24 Hours"

    I'm torn between the 1.5 seconds-watch and this S-Shock:
    http://www.dhgate.com/anike-a1055-me...e4f553625.html

    It says it a Nike, which a like.






    Sorry for the dumb word play, it's just what they wrote.

  7. #7
    JockBoy87
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    Re: "Wristwatches with 1.5 Seconds time error per24 Hours"

    Good gracious, you're hands might only cross 21 times a day

  8. #8
    Rambunctiously Pugnacious JayHawk's Avatar
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    Re: "Wristwatches with 1.5 Seconds time error per24 Hours"

    I dunno paws it said it was ANIKE which is probably a good way to get you to buy a knockoff.

    I have five watches. I stopped wearing a watch about seven years ago.

    Best quality of life decision I have ever made.
    Everyone can be great, because everyone can serve.
    ~ Martin Luther King, Jr.


  9. #9

    Re: "Wristwatches with 1.5 Seconds time error per24 Hours"

    The clock in my truck drifts off about 20 minutes fast over about 6 months. I find it aggravating.

    As to my watch? It probably does drift, but as it's the main time piece I look at, I just assume it's right and run my life according to it.
    http://www.justusboys.com/forum/signaturepics/sigpic216959_1.gif

  10. #10
    Sex God youfiad's Avatar
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    Re: "Wristwatches with 1.5 Seconds time error per24 Hours"

    Could this 1.5 seconds possibly be due to special relativity?

  11. #11

    Re: "Wristwatches with 1.5 Seconds time error per24 Hours"

    Quote Originally Posted by youfiad View Post
    Could this 1.5 seconds possibly be due to special relativity?
    "Special Relativity" only applies for those on Jerry Springer, and some of those incest segments and lasts longer then 1.5 seconds.
    http://www.justusboys.com/forum/signaturepics/sigpic216959_1.gif

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