ISO 764规定了磁性手表的最低要求和试验方法。 它基于手表意外暴露于4800 a/m直流磁场的模拟。 附件A涉及被指定为具有磁性的手表，其额外显示的磁场强度超过4800 A/m。

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.