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IWC Schaffhausen PORTUGIESER PERPETUAL CALENDAR TOURBILLON EDITION “150 YEARS” Instrucciones De Manejo página 17

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  • MEXICANO, página 37
— 3 0 —
not turn the hands back between 10 p.m. and 2 a.m. This
is because the calendar does not move backwards by one
day when the hands are turned back beyond midnight, but
remains on the same day. If you go past the end of the calen­
dar's switching phase (i.e. beyond 2 a.m.) when turning the
hands back, you run the risk of the calendar advancing by one
day for a second time and thus indicating one day too many.
Setting when crossing the International Date Line:
– When crossing the International Date Line in a westerly
direction (you enter the next day, regardless of the time of
day), simply turn the time forward to the new local time, and
the date change will take place automatically.
– When crossing the International Date Line in an easterly
dir ection (you enter the previous day, regardless of the time
of day), you must likewise set your watch forward to the new
local time. However, your watch will now indicate the wrong
date (one day too many). This incorrect date indication can be
corrected by resetting the hands twice, by 12 hours on each
occasion:
– Setting the watch back by 12 hours during the afternoon
between 2 p.m. and 10 p.m. will prevent the calendar from
advancing at midnight.
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
— 3 1 —
– Setting the watch back another 12 hours the following
morning between 2 a.m. and 11 a.m. will synchronize the
date display with the local date.
Warning:
The watch must not be adjusted backwards between 10 p.m.
and 2 a.m., as this would result in a desynchronization that can
only be rectified by a watchmaker.
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. neodymium­
iron­boron) – these are found in objects such as loudspeakers,
mobile phones and fasteners on jewellery 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 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.
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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