iwc 5023 User manual

REF. 5023
PORTUGUESE PERPETUAL CALENDAR
REF. 5023
OPERATING INSTRUCTIONS
ИНСТРУКЦИЯ ПО ЭКСПЛУАТАЦИИ

Operating instructions
English
Ин трукция по эк плуатации
Русский
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Welcome to the small circle of individuals who, if we are to be ab-
solutely recise, demand slightly more of a watch than absolute recision.
A reciation of a watch is more than mere a reciation of the correct time.
It is enthusiasm for an ingenious idea. For the inter lay between recision
and imagination. Between time and timelessness. Between boundaries and
infinity. Between laws to which the entire world is subject, and taste, which
cannot be dictated to anyone. That is why, since 1868, we have been devot-
ing rather more of our time to watches that must not only run with absolute
recision but which also, with every assing second, exert a fascination with
the great achievements of master craftsmanshi : a fascination with new in-
ventions of a technical, material or formal nature, even if they are concealed
in minute details that are erha s not even visible. You are now the owner of
a beautiful new exam le of this IWC tradition. We would like to congratulate
you on your choice and send you our best wishes for the time you will s end
with your watch, which erha s cannot be described with any greater accur-
acy than it is here.
IWC Management
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The technical re inements o the
Portuguese Perpetual Calendar
Your IWC watch shows you the time in hours, minutes and seconds, the
moon phase, the day, the date, the month and the year in four digits, as well
as the remaining power reserve. The mechanical movement with automatic
winding has 62 jewels (synthetic rubies) and a power reserve of approxi-
mately 7 days (168 hours) when fully wound. Your Portuguese Perpetual
Calendar is protected by a convex sapphire glass of hardness grade 9 on
Mohs’ scale. Your watch is water-resistant 3 bar. The engraved rotor with its
18-carat gold medallion winds the watch in both directions of rotation via the
Pellaton winding mechanism. In addition to the uniqueness of its functions,
it is the display’s legibility and the ease with which it can be used that distin-
guishes this watch from all other complicated timepieces. To ensure that
this extraordinary watch continues to perform faultlessly in the future, it is
essential to observe a few important operating instructions.

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Key to the Portuguese Perpetual Calendar
1Hour hand
2Minute hand
3Seconds hand
4Date display
5Day display
06Month display
07Year display
080Moon phase display
090Power reserve display
100Crown
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Functions o the crown
0Normal position
1Quick-setting the calendar
2Time setting
Normal position
With the crown in the normal position (0), you can also wind the automatic
movement by hand. A few revolutions of the crown are enough to start the
movement. However, it is better to wind the watch by turning the crown
through approximately 20 revolutions as this will ensure maximum accuracy.
The crown must always be in position 0 when you are wearing your watch.
Quick-setting the calendar
Pull out the crown to position 1. In this position, you can use the rapid-advance
function to move the calendar forwards one step at a time by turning the crown
slowly to the left. The calendar must not be adjusted between 8 p.m. and
2 a.m.
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Please note:
You must not move the calendar beyond the correct date. The complicated
movement is mechanically programmed and cannot be moved back in time
without making a professional adjustment to the movement. However, if you
do move the date forwards beyond the correct date, you have two options:
you can either pull out the crown to position 2 to stop the movement until the
calendar setting matches the correct date once again. This makes sense if the
date has been set only a few days ahead. r, you must take your watch to your
watchmaker, who will be able to adjust the movement to reset the calendar.
This is recommended in the event of larger maladjustments.
Time setting
Pull out the crown to position 2. This will stop the movement. To set the time
accurately to the second, it is best to stop the movement as the seconds
hand passes 60. Now move the minute hand a few minute strokes beyond
the time to be set. Then position the minute hand by moving it gently back-
wards until it is exactly above the correct minute stroke. This ensures that the
minute hand begins to move immediately when you restart the movement. To
start the seconds hand, push in the crown to position 0. Moving the hands
forwards past midnight causes the calendar to switch to the following day.
When advancing the calendar, you can follow and observe the automatic
switching sequence.
Important:
• Under no circumstances must the hands be turned back between 8 p.m.
and 2 a.m. as this will result in maladjustment of the calendar.
• The hands must never be turned anticlockwise beyond 2 a.m.
• The crown must be pushed back into the normal position before wearing
the watch to avoid unintentional adjustment of the calendar.
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Setting your watch correctly
To set your watch correctly, proceed as follows:
• Wind the movement (approximately 20 revolutions of the crown).
• Pull out the crown to position 2 and turn the hands forwards to approxi-
mately 4.40 a.m. This ensures that the calendar mechanism is not in the
middle of the automatic switching phase and that you can also see the
calendar displays easily.
• Push the crown to position 0 and pull it back to position 1.
• Slowly turn the crown to the left. The calendar now advances in steps. Set
the display to yesterday’s date, keeping an eye on the month and the year.
• Pull out the crown to position 2. This will stop the movement. To set the
time accurately to the second, it is best to stop the movement as the sec-
onds hand passes 60.
• Turn the hands forwards until the date display changes to today’s date.
The hands will now be positioned between 12 midnight and 1 a.m.
• Now turn the hands forwards to the current time. If you are setting the
watch in the afternoon, you must turn the hands past 12 (noon) again. Now
move the minute hand a few minute strokes beyond the time to be set.
Then position the minute hand by moving it gently backwards until it is
exactly above the correct minute stroke. This ensures that the minute
hand begins to move immediately when you restart the movement.
• Push the crown back to position 0 to start the movement.
The entire calendar is now automatically set correctly. There is no need for you
to know the current phase of the moon or whether you are in a leap year. You
do not even need to set the day of the week. This simplified setting is very con-
venient, particularly if you have not worn your IWC watch for a few days.

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Power reserve display
The power reserve display is divided into 7 days with continuous display. The
winding mechanism winds the watch continuously while you are wearing it,
and you can follow the process on the power reserve indicator. The marking in
the area of the last day tells you that the power reserve is about to expire. You
should then wind the watch by hand, if necessary, since the precision can be
reduced in this area.
Moon phase display
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Full moon Waning moon New moon Waxing moon
The moon phase display is automatically set by the calendar so that it is
always correct. The transmission ratio is so precise that the display deviates
by only a single day after 577 years.

Setting when crossing time zones:
• When crossing time zones in an easterly direction, you should simply set
the time forwards to the new local time.
• When crossing time zones in a westerly direction, you can set the hands of
your watch back to the actual time of day. When doing this, however, you
must not move back into the calendar’s automatic switching phase, i.e.
beyond 2 a.m. If this situation occurs when you are travelling west, you
should set the local time of your destination before 8 p.m. You must not
turn the hands back between 8 p.m. and 2 a.m.
Crossing time zones and the International Date Line with the
Portuguese Perpetual Calendar

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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 forwards to
the new local time, and the date change will take place automatically.
• When crossing the International Date Line in an easterly direction (you
enter the previous day, regardless of the time of day), you must likewise set
your watch forwards to the new local time. However, your watch will now in-
dicate 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 8 p.m. will prevent the calendar from advancing at midnight.
• 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.

Water-resistance
The water-resistance of IWC watches is stated in bar and not in metres.
Metres, which are often used elsewhere in the watch industry to indicate
water-resistance, cannot be equated with dive depth because of the test
procedures that are frequently used. Water-resistance shown in metres pro-
vides no indication as to actual use of the watch in the presence of moisture
and wetness, and in or under water. Recommendations for use in connection
with the water-resistance of your watch can be found on the Internet at
www.iwc.com/water-resistance. Your authorized IWC fficial Agent will also
be pleased to provide you with information.
To ensure that your watch continues to function perfectly, you should have it
checked by an IWC service centre at least once a year. Your watch should also
be tested after exposure to unusually harsh conditions. If the tests are not car-
ried out as stipulated, or if the watch is opened by unauthorized persons, IWC
will accept no warranty or liability claims.
Recommendation: Your authorized IWC fficial Agent must carry out a
water-resistance test whenever your IWC watch is opened and serviced.

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Servicing your Portuguese Perpetual Calendar
Although the parts in this watch are all manufactured from top-quality ma-
terials, a number of components are subject to natural wear and tear. It is
particularly important to ensure that the points at which wear occurs are
always well lubricated and that oil contaminated by metal abrasion is regu-
larly removed. For this reason, we recommend that you have your watch
serviced approximately every ive years. Please contact an authorized
IWC fficial Agent or send your watch directly to the IWC Customer Service
Department in Schaffhausen.
Effective from February 2010.
Technical specifications subject to change.

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