15
96-11
Printed in Japan
TECHNICAL GUIDE
Cal. V14JA
•
Remarks on measuring the time accuracy
•
Before measuring the time accuracy, be sure to install
the solar cell unit.
•
If it is necessary to measure the accuracy while the
solar cell unit is not installed and a stable
measurement cannot be obtained, place the watch on
the microphone of the quartz tester and leave it
untouched for more than 2 minutes.
Then, measure the accuracy again.
Microphone of the
quartz tester
Illumina-
tion
(lux)
Light source
Environment
Time required
for full charge
Time required
for 1-second
intervals *
Time required
to maintain
one-day usage
500
700
1,000
3,000
5,000
10,000
10,000
100,000
60-watt incandescent
light
Fluorescent light
30-watt fluorescent
light
30-watt fluorescent
light
30-watt fluorescent
light
30-watt fluorescent
light
Sun
Sun
Distance of 60 cm
Office, overhead
Distance of 70 cm
Distance of 20 cm
Distance of 12 cm
Distance of 3 cm
Cloudy weather
Fair weather
250 hours
175 hours
120 hours
40 hours
22 hours
10 hours
10 hours
3 hours
15 hours
11 hours
6 hours
2 hours
80 minutes
30 minutes
30 minutes
8 minutes
60 minutes
50 minutes
30 minutes
10 minutes
6 minutes
3 minutes
3 minutes
1 minute
[Caution for charging]
•
To prevent damage to the watch caused by heat from a light source, make sure that the watch
temperature does not exceed 50
°
C while charging the watch.
•
The above table provides only a general guideline, and the actual charging time may differ from model
to model.
* The values in this column represent the charging times required until the second hand moves
constantly at 1-second intervals after the watch starts operating with the second hand moving at 2-
second intervals. Even if the watch is not charged for the time specified in the column, the second hand
may temporarily move at 1-second intervals. But, it will soon resume moving at 2-second intervals, and
therefore, charge the watch for more than the specified period.
•
Guideline of charging time
