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    Re: Photo sextant sights
    From: Thomas Kleemann
    Date: 2008 Aug 06, 18:05 +0200

    Peter Fogg schrieb:
    >
    > Aha, but if mine (at its current most pessimistic indicated rate) gains
    > a second every two weeks that's 13 seconds a half year!
    
    I'm quite new to celnav, so I never used it for that purpose.
    It's rate is so small that I do not even bother setting it.
    
    > Its supposed to
    > be some kind of 'water resistant', too.  To 100m, it says.
    
    I had some insight into that WR-testing.
    Don't try the 100m in reality.
    The test is executed in dry conditions, 10atm for 30 seconds.
    Even a dive into the pool can break the seal and let water in,
    because it peaks the pressure dynamically.
    
    WR 50 means you can take a shower with it on, WR 100 is ok for swimming.
    Watches for divers are rated at least WR 200m.
    
    > I imagine yours was kind of expensive
    
    Not really, I could afford it being a student at the University :-)
    
    
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