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    Re: Timekeeping and sight time records
    From: Jared Sherman
    Date: 2005 Mar 17, 14:39 -0500

    Vic-
     Acutally, the term "chronometer" no longer refers to a reliable time
    source. AFAIK: Technically, if a watch passes an actual timekeeping test a
    chronometer certificate can be awarded to that individual watch--certifying
    that it can keep time to better than 2 minutes per day. That was good, for a
    Rolex in 1957. It was obsoleted in the 60's by the Accutron (a mechanical
    watch with an electronic heartbeat) which was never given certification but
    was guaranteed to better than two minutes a day simply as a sales point.
    (One minute was typical, and easily reached.) And then the quartz watches in
    the 70's made one minute a month easily possible--if you had a better quartz
    watch that offered any provision for adjusting the rate. The cheaper ones
    didn't and don't.
    
    Now that sub-minute accuracy is easily achieved....Perhaps we need to
    petition the Swiss (ahem) for a new standard with a new name? Chronometers
    are *so* fifties.
    
    
    

       
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