Citizen JM8XXX Instruction Manual Download Page 5

5) Fuel consumption (litres) calculations

Example:

How many litres

of fuel does the car need
to travel 5 hours if it uses 
7 litres per hour?

Calculations:

Align 70 on

the outer scale with the
speed index (

) mark on

the inner scale. The position on the inner scale at 5:00
will now be lined up with 35 (litres) on the outer scale.

6) Travel (time) calculations

Example:

If a car has 40

litres of fuel and burns it at
a rate of 8 litres per hour,
how many hours will the
car be able to travel?

Calculations:

Align 80 on

the outer scale with the
speed index (

) mark on the inner scale. The

position on the outer scale at 40 will now be lined
up with 5:00 (5 hours) on the inner scale.

7) Kilometre/mile conversions

• Use this feature to

convert between
kilometres and miles.

Example:

One mile equals

how many kilometres?

Calculations:

Align STAT

(

) (mile) on the inner

scale with the 10 on the outer scale. At this position
the km mark (

) will point to 1.6 on the outer scale.

PRECAUTIONS
1. Resistance to water

Check the following chart to determine the water
resistant properties of this watch.

2. Avoid temperature extremes

Avoid leaving your watch in direct sunlight or in
extremely warm locations for long periods of time.
• This will cause malfunctioning and shorten the life

of the battery. Do not leave your watch for long
periods of time in extremely cold places.

• This may cause your watch to gain or lose time.
• Place your watch on your wrist to restore its original

accuracy should it begin to gain or lose time.

Water resistance

3. Avoid strong shock

This watch will withstand the bumps and jars
normally incurred while playing and during sports
activities. Avoid dropping your watch on the ground
or otherwise imparting severe shock to it.

4. Avoid strong magnetic fields

Keep your watch out of the immediate vicinity of
strong magnets. Generally, your watch is not
affected by magnetic fields from such household
appliances as television sets and stereo equipment.

5. Avoid harmful chemicals, solvents and gases

Avoid wearing your watch in the presence of strong
chemicals, solvents and gases. If your watch comes
in contact with materials such as gasoline, benzine,
paint, discolouration, deterioration or damage to the
case, band and other components may occur.

6. Keep your watch clean

It may become difficult to pull out the crown due to
dirt and dust getting caught between the crown and
the watch case when the watch is worn for long
periods of time. To help prevent this happening, turn
the crown freely back and forth occasionally while it
is in the normal set position. Wipe off any water and
moisture that adheres to the case, glass and band
with a soft, clean cloth. Any dirt left on the case or
band may cause skin rash.
A watchband will easily become soiled with dust and
perspiration because it is in direct contact with the
skin. Even a stainless or gold plated band may
begin to corrode if it has not been cleaned for a
long period of time. Mesh bands, because the
meshes are very fine, will lose their particular
“flexibility” if they are left soiled for a long time.
Metal watchbands are usually washed with a brush
in mild, soapy water and well wiped with a soft,
absorbent cloth to make sure all water is removed.
Pay attention to prevent any water from getting
inside your watch when the band is washed.

7. Periodic inspection

Getting your watch checked once every year or two
is recommended to ensure long use and trouble-
free operation.

8. Be sure to keep the batteries out of reach of
infants and small children. Should accidental
ingestion occur, consult a doctor at once.

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