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iwc PORTUGIESER PERPETUAL CALENDAR TOURBILLON Operating Instructions Manual page 23

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I N F O R M AT I O N A B O U T
M AG 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 rare­earth alloys (e.g. neo­
dymium­iron­boron) – these are found
in objects such as loudspeakers,
mobile phones and fasteners on jewel­
lery as well as handbags – mechanical
watches are increasingly likely to come
into contact with such magnets and
become magnetized. This can lead
to the watch rate being perman ently
affected, a problem that can only be
resolved by a process of demagnet­
ization carried out by a specialist. We
recommend that you keep your watch
away from such magnets.
P O R T U G I E S E R P E R P E T U A L C A L E N D A R T O U R B I L L O N

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