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A Watch with Assorted Measurements

Is one permitted to wear a watch on Shabbat that displays many measured quantities, such as barometric pressure, temperature, vertical speed, etc. Such a watch appears here at this link. Is wearing a watch like this on Shabbat a problem?



   As far as I can see, all of these actions are not considered measurements in terms of Shabbat, because the person does not take any active part in the measurement. He or she simply reads a dial that appears in front of him and does not actually measure anything.
   This is quite similar to looking at a clock (although not exactly the same), which has never been considered as "measuring" time on Shabbat. See my article in Volume 3 of "Techumin" on the subject of meteorological measurements on Shabbat.


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