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    Re: Longines A-7 Avigation Hack Watch
    From: Geoffrey Kolbe
    Date: 2017 Sep 21, 02:37 -0700

    "One would never take the chronometer on deck, ever.  But the observation must be timed anyway.  How?  The hack watch."

    Such watches are usually called a "deck watch". I would be interested to know where the term 'hack' comes from...?

    Geoffrey Kolbe

       
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