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Immediately after the watch is swung to charge the rechargeable battery, the second hand may not
properly indicate the power reserve. Please check again after 10 to 15 minutes have elapsed.
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Precaution on see-through case-back models:
If your watch has a glass case back, do not expose the case back to strong light such as direct
sunlight or an incandescent light at close range, as this may temporarily increase the power
consumption of the watch circuit, thus reducing the power reserve in the rechargeable battery. This
condition, however, will be corrected when the case back is turned away from the light.
TIME/CALENDAR SETTING
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For Cal. 5M82, do not set the calendar between 9:00 p.m. and 1:00 a.m. For Cal. 5M84 & 5M83, do
not set the calendar between 9:00 p.m. and 3:00 a.m. Otherwise, it may not change properly. If it is
necessary to set the calendar during that time period, first change the time to any time outside it, set
the calendar and then reset the correct time.
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To set the exact time, pull out the crown all the way when the second hand is at the 12 o'clock posi-
tion and push it back in to the normal position in accordance with a time signal.
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When setting the hour hand, check that AM/PM is correctly set. The watch is so designed that the
calendar changes once in 24 hours.
Turn the hands past the 12 o'clock marker to determine whether the watch is set for the A.M. or P.M.
period. If the calendar changes, the time is set for the A.M. period. If the calendar does not change,
the time is set for the P.M. period.
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When setting the minute hand, advance it 4 to 5 minutes ahead of the desired time and then turn it
back to the exact minute.
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When setting the time, make sure that the second hand is moving at one-second intervals.
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It is necessary to adjust the date at the end of February and 30-day months. In this case, pull out the
crown to the first click and turn it until the desired date appears.
NOTES FOR USING THE WATCH
HOW TO CHARGE AND START THE WATCH
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To charge the rechargeable battery efficiently, swing the watch from side to side, making an arc of
about 20 cm.
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No additional benefit is obtained by swinging the watch more quickly or with greater vigor.
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When the watch is swung, the oscillating weight in the generating system rotates to drive the
mechanism. As it rotates, it gives out a sound, which is not a malfunction.
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When the watch has been left untouched for more than one year after it completely stopped, the
second hand may not start moving at normal one-second intervals even if the watch is swung the
number of times indicated in “NUMBER OF SWINGS AND POWER RESERVE”. In this case, swing
the watch further until the second hand starts moving at one-second intervals.
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The watch is equipped with a system to prevent overcharge. Even if it is further swung after being
fully charged, no malfunction will result.
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The watch is equipped with an instant-start function, and it may start operating after it is swung
several times. For details, see “INSTANT-START FUNCTION”.
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It is not necessary to charge the watch fully, as it is charged automatically while it is worn on your wrist.
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Wear the watch daily for at least 10 hours.
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Even if the watch is worn on your arm, it will not be charged while your arm is not in motion.
POWER RESERVE INDICATOR
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The power reserve indicator provides only a general guideline of the duration within which the watch
keeps operating without needing to be charged.
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You can immediately press the button again to recheck the power reserve one more time. To do so a
third time, however, wait until the second hand resumes normal movement before pressing the
button again.
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When the second hand moves at two-second intervals, the power reserve is very low and the
indicator does not function.
NOTES ON OVERHAUL
The watch is a precision device. If the parts run short of oil or get worn out, the
watch may stop its operation or lose time. We recommend you have the watch over-
hauled periodically to keep it running accurately.