CONCORD Caliber 288 Instruction Manual

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CALIBER 288 CALIBER 288

www.concord.ch

AUTOMATIC PERPETUAL

CALEndAR CHROnOGRAPH

INSTRUCTION MANUAL

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CALIBER 288

table of languages

English 4 - 24

26 - 49

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CALIBER 288 CALIBER 288

YOU HAvE jUsT ACqUIREd

A UnIqUE TIMEPIECE…

The Perpetual Calendar Chronograph that you have just acquired
is a masterpiece of precision micro-mechanics. It is the result of the
passionate work of master watchmaker and, for this reason, is reserved
for enthusiasts of crafted watchmaking. We congratulate you for being
one of them.

Read these few pages carefully, they include precious information about
the use and service for your Perpetual Calendar Chronograph. We hope
you will derive as much pleasure from your new watch as we did from
its manufacture.

A bRIEf HIsTORY Of

A GREAT COMPLICATIOn

The perpetual date mechanism was first introduced in the early 18th
century. The mechanical reflection of the year as it passes; it takes into
account the variable number of days of the months in ordinary and leap
years. A watch with perpetual calendar therefore avoids its owner having
to correct the date manually… until 2100, a non-leap year. Up until the
Middle Ages, the calendar referred to the moon. But the lunar year
was shorter by ten days that the earth’s rotation around the sun. There
were unending discrepancies. In 1582, Pope Gregory XIII instituted the
“Gregorian” calendar and deleted, that same year, ten whole days: the
day after 4 October was therefore the 15th. Further, to eliminate any
additional risk of discrepancy, he extended August by one day, taken
from February and decided that in centenary years (1600, 1700, etc.),
those that are divisible by 400 would be leap years. Since then, highly
complex mechanisms have been created, but up until this day, none
has been able to extend the perpetual nature of their mechanism
beyond the non-leap year centenary years. As the next is 2100, even
watches with a perpetual calendar will have to be adjusted to delete 29
February. Despite this “defect”, the perpetual calendar is still one of the
watchmaker’s finest achievements.

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CALIBER 288 CALIBER 288

CARE And MAInTEnAnCE

Your Concord timepiece requires periodic maintenance to ensure
optimal performance.

Never open the watch yourself. Have your watch repaired promptly if the
crystal becomes loose, chipped or cracked, or if there is damage to the
case or crown. If your watch needs repair or adjustment, take or mail it
directly to a Concord Authorized Service Center or refer to our website

www.concord.ch

NOTE: Concord assumes re

sponsibility only for service performed at its
Authorized Service Centers. Please refer to our website www.concord.ch
for the list of Authorized Service Centers.

We recommend you rinse your watch and its metal bracelet or rubber
strap carefully with clear water and clean them with a soft brush. Such
steps, if carried out regularly, will help preserve the watch and prevent
it from getting clogged with dust and sweat, especially after a swim in
a pool or in the sea or after practicing a sport which involves exposure
to dust and sand.

All Concord watches have shock-resistant movements, individually
tested to meet international standards.

The exposure of a timepiece to strong magnetic fields will affect its
time-keeping, and may cause it to stop. Following such exposure, a
mechanical timepiece may require demagnetization before it will run
again.

The water-resistance of your Concord wristwatch has been tested in
conditions corresponding to submersion in water at the depth that is
engraved on the case back.

If the temperature changes suddenly, a slight condensation may appear
under the crystal of your watch. This mist will disappear by itself and
will not affect the functioning of the watch. If the condensation persists,
please see your official Concord dealer.

IMPORTANT: Do not adjust the position of the crown to change the time,
date or to operate any other functions when the watch is immersed in
water or water could seep into the case and damage the movement.

CAUTION: Concord will NOT be responsible for any damage originating
from improper handling of the watch.