IWC Schaffhausen BIG PILOT'S HERITAGE 55 Mode D'emploi page 23

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I N F O R M A T I O N A B O U T M A G N E T I C F I E L D S
As a result of the ever greater prevalence in recent years of very strong
magnets made from rare-earth alloys (for example neodymium-
iron-boron) – these are found in objects such as loudspeakers,
jewellery and fasteners on mobile-phone cases and handbags –
mechanical watches are increasingly likely to come into contact with
such magnets and be magnetized. This can lead to the watch rate
being permanently affected, a problem that can only be resolved
by a process of demagnetization carried out by a specialist.
We recommend that you keep your watch away from such magnets.
Watches with a soft-iron inner case provide a higher level of protec-
tion against magnetic fields and far exceed the requirements of DIN
standard 8309. Nevertheless, it is still possible for the watch move-
ment to be magnetized in the close proximity of very strong mag-
nets. We therefore recommend that watches with a soft-iron inner
case also be kept away from direct contact with strong magnets.
Should there be a sudden change in the precision of your time-
piece, please contact an authorized IWC Official Agent to have
your watch checked for magnetism.
B I G P I L O T ' S H E R I T A G E W A T C H 5 5