Seiko D-1, V181, V145, V182 manual Examples of common magnetic products that may affect watches

Magnetic resistance（affect of magnetic field）

Affected by nearby magnetism,

a quartz watch may temporarily gain or lose time or stop operating.

※This defective condition caused by magnetism will be corrected soon after the watch is removed from the magnetic source. Reset the time once again before using the watch.

Indication on the case back	Condition of use
No indication	Keep the watch more than 10 cm away from
	magnetic products.
	Keep the watch more than 5 cm away from
	magnetic products. (JIS level-1 standard)

Examples of common magnetic products that may affect watches

Cellular phone (speaker)	Magnetic health belt
Bag (with magnet buckle)	Magnetic necklace
AC-powered shaver	Magnetic health mat
Portable radio (speaker)	Magnetic health pillow
Magnetic cooking device	etc

Keep the watch more than 1 cm away from

magnetic products. (JIS level-2 standard)

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The reason why analogue quartz watch is affected by magnetism.

It is because the built-in motor of the watch, which harnesses magnetic power and external strong magnetism, affect each other to stop the motor or suppresses the turn of the motor.

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