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TAGS:make b'patish  winding
Halacha - kinetic watch
Submitted by ilan flax  Answered by Rav Peretz Moncharsh
Answer: While a mechanical self-winding watch may be worn on Shabbos or Yom Tov as long as it has not stopped running, even though the spring will be tightened. However the same does not apply to a "kinetic" watch where the movement of the wrist generates electricity that recharges the watch's battery and may not be worn at all on Shabbos or Yom Tov.
posted:2009-08-30 13:26:29

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