Welcome to the small circle of individuals
who, if we are to be absolutely precise, demand slightly
more of a watch than absolute precision. Appreci ation
of a watch is more than mere appreciation of the correct time. It is enthusiasm for an ingenious idea. For the
interplay between precision 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 devoting rather more of
our time to watches that must not only run with absolute precision but which also, with every passing second,
exert a fascination with the great achievements of master
craftsmanship: a fascination with new inventions of a
technical, material or formal nature, even if they are concealed in minute details that are perhaps not even visible. You are now the owner of a beautiful new example
of this IWC tradition. We would like to congratulate you
on your choice and send you our best wishes for the time
you will spend with your watch, which perhaps cannot
be described with any greater accuracy than it is here.
IWC MANAGEMENT
PORTOFINO HAND-WOUND MOON PHASE
— 6 —
THE TECHNICAL REFINEMENTS OF
THE PORTOFINO HAND-WOUND
MOON PHASE
Your IWC watch shows you the time in hours, minutes
and seconds, together with the date, the moon phase
and the power reserve. Thanks to the fibre-optic image
guide, the date is extremely easy to read. The mechanical movement has a power reserve of approximately
8 days (192 hours) when fully wound. Your Portofino
Hand-Wound Moon Phase is protected by an archededge sapphire glass of hardness grade 9 on Mohs’ scale.
Your watch is water-resistant 3 bar. To ensure that this
extraordinary watch continues to perform faultlessly in
the future, it is essential to observe a few important operating instructions.
PORTOFINO HAND-WOUND MOON PHASE
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5
2
1
6
3
1 Hour hand
2 Minute hand
3 Small seconds hand
4 Date display
4
7
Moon phase display 5
Power reserve display 6
Crown 7
PORTOFINO HAND-WOUND MOON PHASE
— 8 —
FUNCTIONS OF THE CROWN
012
0 — Normal position
1 — Date and moon phase setting
2 — Time setting
NORMAL POSITION
With the crown in the normal position (0), you can wind
the watch by turning the crown clockwise. Always wind
the watch fully, to the point at which you feel a distinct
resistance in the crown. Your watch has a power reserve
of approximately 8 days (192 hours).
DATE AND MOON PHASE SETTING
If a month has fewer than 31 days, you will need to set
the date manually to the first day of the following month.
Pull out the crown to position 1. You can now set the
date by turning the crown to the left, and the moon phase
PORTOFINO HAND-WOUND MOON PHASE
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display by turning it to the right (direct advance). You
should not use the rapid-advance function between
8 p.m. and 2 a.m. because the movement automatically advances the date and the moon phase display during this period and the change mechanism
could be damaged.
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 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. To start the seconds hand,
push in the crown to position 0. When setting the time,
please be aware of the date change, which always
takes place at 12 midnight. If this change has already
taken place at 12 noon, you must move the hands forwards by 12 hours.
PORTOFINO HAND-WOUND MOON PHASE
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SETTING YOUR WATCH CORRECTLY
To set your watch correctly, proceed as follows:
– Always wind the watch fully, to the point at which you
feel a distinct resistance in the crown.
– Pull out the crown to position 1.
– Check the Internet to find out the date of the last full
moon. Set the date display to that date by turning the
crown to the left.
– Turn the crown to the right to advance the moon
phase display until the full moon can be seen in the
dial opening at “12 o’clock”.
– Now make as many corrections, both to the right and
to the left, as correspond to the difference in the num-
ber of days between yesterday’s date and the date
of the last full moon. The watch should now display
yesterday’s date and yesterday’s moon phase.
– Pull out the crown to position 2. This will stop the
movement. To set the time accur ately to the second,
it is best to stop the movement as the seconds hand
passes 60.
– Turn the hands forwards until the date display and
the moon phase display change to today’s date. The
hands will now be positioned between 12 midnight
and 1 a.m.
– Now turn the hands forwards beyond the approxi-
mate time. Then move them backwards to the correct
PORTOFINO HAND-WOUND MOON PHASE
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time. If you are setting the watch in the afternoon, you
must turn the hands past 12 (noon) again.
– Push the crown back to position 0 to start the move-
ment.
POWER RESERVE DISPLAY
The power reserve display is divided into 8 days with
continuous display. The marking in the area of the last 2
days tells you that the power reserve is about to expire.
You should then wind the watch, since the precision can
be reduced in this area.
INFORMATION ABOUT MAGNETIC
FIELDS
As a result of the ever greater prevalence in recent years
of very strong magnets made from rare-earth alloys (e.g.
neodymium-iron-boron) – these are found in objects such
as loudspeakers, jewellery and fasteners on mobilephone cases and handbags – mech anical 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
PORTOFINO HAND-WOUND MOON PHASE
— 12 —
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 protection against magnetic fields and far exceed the
requirements of DIN standard 8309. Nevertheless, it is
still possible for the watch movement to be magnetized in
the close proximity of very strong magnets. 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 timepiece, please contact an authorized IWC Official Agent to have your watch checked for magnetism.
PORTOFINO HAND-WOUND MOON PHASE
— 13 —
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 pro cedures that are frequently used. Water-resistance shown
in metres provides no indication as to actual use of the
watch in the presence of moisture and wetness as well
as 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 Official 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
expos ure to unusually harsh conditions. If the tests are
not carried out as stipulated, or if the watch is opened
by unauthorized persons, IWC will accept no warranty
or liability claims.
Recommendation: Your authorized IWC Official Agent
must carry out a water-resistance test whenever your
IWC watch is opened and serviced.
PORTOFINO HAND-WOUND MOON PHASE
— 14 —
NOTE
If your watch has a strap made of leather, textile or rubber
with a leather or textile inlay, make sure that the highquality strap does not come into contact with water, oily
substances, solvents, cleaning agents or cosmetic products. This way you can prevent discoloration and premature ageing of the material.
SERVICING YOUR PORTOFINO
HAND-WOUND MOON PHASE
Although the parts in this watch are all manufactured from
top-quality materials, 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 regularly removed. For this reason, we recommend that you have your watch serviced approximately
every 5 years. Please contact an authorized IWC Official
Agent or send your watch directly to the IWC Customer
Service Department in Schaffhausen.
PORTOFINO HAND-WOUND MOON PHASE
— 15 —
CASE MATERIALS
CASE MATERIAL SCRATCH-RESISTANCEBREAKING STRENGTHWEIGHT
STAINLESS STEEL
BRONZE
RED GOLD/
WHIT E GOLD
PLATINUM
TITANIUM
TITANIUM ALUMINIDE
CE RAM IC
(ZIRCONIUM OXIDE)
CARBON
low
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low
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low
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low
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low
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low
● ● ●● ●
low
● ● ● ● ●
low
● ● ● ● ●
highlow
highlow
highlow
highlow
highlow
highlow
highlow
highlow
● ● ●●●
● ● ●●●
● ● ●●●
● ● ●●●
● ● ●● ●
● ● ●● ●
● ● ● ● ●
● ● ● ● ●
highlow
highlow
highlow
highlow
highlow
highlow
highlow
highlow
Further information at
www.iwc.com/case-materials
● ● ● ● ●
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● ● ● ● ●
● ● ● ● ●
● ● ● ● ●
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high
high
high
high
high
high
high
high
Effective from November 2016.
Technical specifications subject to change.