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Thread: tachymeter on watches

  1. #1
    Senior Member denniskee's Avatar
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    Default tachymeter on watches

    hi guys,

    i cant figure this out.

    i understand / know the rotating bezel on typically diver's watches is like some outdated technology of "stopwatch".

    but how do u use / read the tachymeter thats on the bezel?
    photography makes one sees things from all angles.

  2. #2

    Default Re: tachymeter on watches

    How to Use Tachymeter Function on Watch Bezel - Usage Instruction and Definition
    http://www.mydigitallife.info/2006/1...nd-definition/

    http://en.wikipedia.org/wiki/Tacheometer
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    Default Re: tachymeter on watches

    Quote Originally Posted by denniskee View Post
    hi guys,

    i cant figure this out.

    i understand / know the rotating bezel on typically diver's watches is like some outdated technology of "stopwatch".

    but how do u use / read the tachymeter thats on the bezel?
    those are only ornaments for ppl like us... i mean... u will look beyond the 2 longer hands when u see your watch? btw, which is is 'tachymeter'??? got this thing ar?
    Logging Off. "You have 2,631 messages stored, of a total 400 allowed." don't PM me.

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    Senior Member denniskee's Avatar
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    Default Re: tachymeter on watches

    oh!! so i must know the distant traveled inoder to use the function?
    photography makes one sees things from all angles.

  5. #5

    Default Re: tachymeter on watches

    Quote Originally Posted by denniskee View Post
    oh!! so i must know the distant traveled inoder to use the function?
    Yup. It would help a racer determine lap times.
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    Default Re: tachymeter on watches

    Quote Originally Posted by denniskee View Post
    oh!! so i must know the distant traveled inoder to use the function?
    From what I vaguely remember..

    In times past before speedometers and GPS, to determine the speed of a sailing ship, drop a float/buoy from a point along the railing and mark the time taken for the float/buoy to reach another point along the ship.. (of course you attach a line to recover the float for reuse..)

    Since you can measure the length between the 2 points (and if you always use the same length as reference), you can calc the speed of the vessel.. With the markings on the tachy, you can create a chart with which you only require the elapsed time to find the 'knots'..

    Just my say..
    Canon 30D 100-400mm L IS|Tamron 17-35mm/f2.8-4,28-75mm/f2.8|Cosina Voigtlander Bessa-R 35mm/f2.5C

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