Patek Philippe CALIBER 240 PS IRM C LU User manual

CALIBER 240 PS IRM C LU
nautilus

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INDEX

CALIBER 240 PS IRM C LU
nautilus

caliber 240 ps irM c lu
nautilus

b a c k
f r o n t

CALIBER 240 PS IRM C LU
nautilus
ENGLISH

11
PATEK PHILIPPE
NAUTILUS
STRONG DESIGN AND RELIABILITY
The Nautilus collection was introduced in 1976.
Patek Philippe was looking for a strong design and
an inimitable personality. An inspiration for its
design soon emerged: The universal shape of a
porthole found on virtually all maritime vessels.
The original model was the Ref. 3700/1 in steel.
Since then, the Nautilus has established itself as a
classic, elegant sports watch and the original refer-
ence is one of the most sought-after timepieces at
auctions. The new Nautilus collection showcases
the flattering redesign of Patek Philippe’s casually
elegant classic. It has gained style through subtle
and carefully calculated changes while preserving
its original spirit.
anew chapter
Having enjoyed unprecedented success for a full
thirty years, it was high time in 2006 to imbue
the collection with the spirit of the new millen-
nium. The lateral hinges were gently rounded and
now follow the contours of the bezel in perfection,
broadening the case by one millimeter. Legibility
was further optimized with slightly enlarged hour
markers and hands.
Apart from displaying the hours and minutes, it has
a subsidiary seconds dial at 4 o’clock, a power-
reserve indicator between 10 and 11 o’clock, and
an analog date at 7 o’clock with an integrated

12
moon-phase display. It has a three-part case with
a sapphire-crystal back, a screw-down crown, and
two correction push pieces in the side of the case
for correcting the date and the moon phase. These
correctors limit the water resistance of the watch
to 60 meters. This complicated Nautilus is pow-
ered by the famous self-winding Patek Philippe
caliber 240 PS IRM C LU movement.

13
INSTRUCTIONS
winding crown
The winding crown is used to wind the watch
(position 2) and to set the time (position 3).
winding
Your watch incorporates a self-winding movement.
The movements of your wrist set a centrifugal mass
in motion; this tensions the mainspring which
stores the energy. When you take off your fully
wound watch, it will continue to run for at least
38 hours. When it has stopped after depleting the
power reserve, it can be rewound by hand (about
10 clockwise turns of the crown). Please wind the
watch before you put it on. This way, you can avoid
lateral pressure on the winding stem which in the
course of the years could damage the stem tube.
Position 2:
Winding
Position 3:
Setting
the time
21 3
Power-reserve
indicator
Hour
Date
Minutes
Moon-phase
correction
Date correction
Seconds
Moon phase

14
setting the time
Your watch is equipped with a screw-down crown.
Before you set the time, unscrew the crown com-
pletely (position 2). Then gently pull the crown all
the way out to position 3. Turn it in either direc-
tion to set the time.
When you turn the hands clockwise beyond mid-
night, the calendar displays will advance as well.
We advise against turning the hands counterclock-
wise across midnight because this would desyn-
chronize the calendar displays; however, it would
not damage the calendar mechanism.
If your watch has stopped running, we recommend
that you first move the hands clockwise until the
date advances by one day (at midnight). Then set
the correct time. If it is past noon, move the hands
forward beyond 12 o’clock again. Once you have
set the time, push the crown all the way in and
screw it tight again (position 1).
Caution: Please set the time before you put the watch on.
This prevents lateral pressure on the winding stem. Please
use your fingernails to pull the crown out and turn it gently
between two fingertips.
Never pull out the crown in a humid environment or under-
water: the water resistance of your watch is assured only
when the crown is pushed home and screwed down.
date correction
Repeatedly press the correction push piece in the
side of the case at 8 o’clock until the correct date
is displayed. If you need to change the date, we
recommend that you do so between 1 a.m. and
9 p.m. This gives you the assurance that the date
will advance at midnight rather than around noon.
Every year, the date must be corrected five times –
at the end of each month that has fewer than 31 days.

15
Caution: The correctors should be actuated only with the
correction stylus delivered with the watch. The use of any
other tool could damage your timepiece.
setting/correcting the moon phase
The moon-phase display can be advanced in steps
of 24 hours by pressing the correction push piece
at 4 o’clock all the way in.
Begin by advancing the lunar disc until the full
moon is displayed in the aperture. Now, determine
the date of the last full moon using the “Full Moon
and Leap Year Calendar” brochure or an almanac.
To correctly set the moon phase, press the cor-
rector all the way in as many times as days have
elapsed since the last full moon.
The exact moon phase for a given date can also be
found at www.patek.com. Click on:›Collection
›Movements-Complications ›The moonphase
indicator.

16 TAKING CARE
OF YOUR WATCH
certificate of origin
Your watch is delivered with a certificate of origin
that indicates the movement and case numbers.
The certificate is valid only if it is dated, signed by
an Authorized Patek Philippe Retailer, and com-
pleted with your name. It guarantees the authen-
ticity of your watch and validates your warranty
privileges for a period of two years after the date
of sale. The unique movement and case numbers
of each watch are transcribed into the workshop
journals. With this information, you may have
yourself entered in the Patek Philippe Register of
Owners and will obtain the International Patek Philippe
Magazine free of charge.
patek philippe seal
As an all-encompassing hallmark of
quality, the Patek Philippe Seal applies
to the entire watch, including the
movement, case, dial, hands, pushers,
strap, and clasp as well as to all other
facets that contribute to the precision and aesthetic
perfection of the timepiece. It covers the technical,
functional, and aesthetic factors, but also rate accu-
racy, dependability, and customer service quality.
Additionally, it reflects the maker’s know-how and
all other assets needed for the development, pro-
duction, and long-term maintenance of an extraor-
dinary timekeeping instrument.

17
quality control
The movements and completely assembled watches
are subject to a series of technical tests and visual
inspections to verify their rate accuracy, winding
speed, power reserve, reliability, water resistance,
and overall appearance. After it was assembled,
your self-winding watch will already have run for
several weeks before leaving the workshops; it
fully complies with the stringent criteria of the
Patek Philippe Seal.
rate accuracy
The rate accuracy of Patek Philippe watches is
verified in several phases of manufacturing, both
with uncased and fully cased movements. The final
test is performed with a wrist motion simulator
and the results must conform to the following
Patek Philippe precision benchmarks:
The rate accuracy of calibers with a diameter of 20 mm or
larger must range within –3and +2 seconds per 24 hours.
The precision of a watch is determined by how
accurately it keeps the time. A watch that is fast
or slow is considered precise if the amount by
which it is fast or slow remains constant. Such
a deviation can be easily corrected. The last test
of accuracy takes place on your wrist. Your tem-
perament or the nature of your physical activities
can cause slight irregularities. Fluctuations in posi-
tion, temperature, or air pressure, the presence of
magnetic fields (as produced by most electronic
devices, metal detectors, household appliances,
etc.) as well as vibrations and other factors may
also affect its accuracy.

18 If you notice that your watch exhibits such
irregularities, please do not hesitate to take it
to an Authorized Patek Philippe Retailer or an
Authorized Service Center where no effort will
be spared to assure that it is adjusted to meet your
expectations.
water resistance
Your watch is fitted with different types of seals
and a screw-down crown to protect the move-
ment against the ingress of dust and moisture
and to prevent damage if it is immersed in the
water. Nonetheless, we recommend that you pre-
vent direct contact with water if your watch has
a leather strap.
It is advisable to have a water-resistance test car-
ried out every year on your watch. This is a simple
procedure that takes only a few minutes at a prop-
erly equipped point of sale.
service
We recommend that you have your watch ser-
viced every three to five years. For this purpose,
we suggest that you bring or send your watch
to an Authorized Patek Philippe Retailer or an
Authorized Service Center. This gives you the
assurance that your watch will be entrusted to
hands of a qualified Patek Philippe watchmaker in
Geneva or at an Authorized Service Center.
The watchmaker will completely disassemble the
movement and then clean and inspect all parts
and lubricate them in the reassembly process.
All functions of the watch will also be tested in
detail and the escapement regulated if necessary.
Finally, its rate accuracy will be monitored and
precision adjusted for a further period of two
weeks. The entire process may take several weeks

19
because each watch must undergo a complete
series of tests to fulfill the strict quality criteria
of Patek Philippe.
If you have any questions regarding the maintenance of your
watch or need the address of the Authorized Patek Philippe
Service Center nearest you, contact our International Customer
Service department in Geneva, or visit www. patek.com.

20
SPECIFICATIONS OF THE MOVEMENT
SELF-WINDING MECHANICAL MOVEMENT
CALIBER 240 PS IRM C LU
DIaMEtEr 31 mm
HEIGHt 3.98 mm
nUMbEr of PartS 265
nUMbEr of JEWELS 29
POWER RESERVE Min. 38 hours - max. 48 hours
WINDING ROTOR Off-center minirotor in 22K gold,
unidirectional winding
BALANCE Gyromax®
frEQUEncY 21,600 semi-oscillations/hour (3 Hz)
BALANCE SPRING Spiromax®
HALLMARK Patek Philippe Seal
displays
HOUR, MINUTES
SUbSIDIarY DIaLS
– Seconds between 4 and 5 o’clock
– Date between 7 and 8 o’clock
– Moon phase between 7 and 8 o’clock
– Power-reserve indicator between 10 and 11 o’clock
correction push pieces
MOON-PHASE CORRECTION AT 4 O’CLOCK
DATE CORRECTION AT 8 O’CLOCK