M00008402
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ISO 764:2002 Horology - Magnetic resistant watches
standard by International Organization for Standardization, 07/01/2002
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Availability date: 2021-11-25
ISO 764 specifies the minimum requirements and test methods for magnetic resistant watches.
It is based on the simulation of an accidental exposure of a watch to a direct current magnetic field of 4 800 A/m.
Annex A deals with watches designated as magnetic resistant with an additional indication of intensity of a magnetic field exceeding 4 800 A/m.