Citizen 901 Manual page 16

<Temperature>
• The watch may stop or the function of the watch may be impaired in extremely high or low
temperature. Do not use the watch in places where the temperature is outside the operating
temperature range as stated in the specifications.
<Magnetism>
• Exposure to strong magnetic fields will cause the movement components to become magnetized,
and the accuracy of the watch may be greatly deteriorated. Do NOT subject the watch to strongly-
magnetized health equipment (magnetic necklaces, health stomach bands etc.), magnetic latch
refrigerator doors, handbag claps, mobile phone speakers, or magnetic cooking devices.
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