■ How to stop the alarm
• The alarm sounds for 20 seconds at the set alarm time.
• For stopping the sounding alarm, press button A or B.
* While the stopwatch hands are moving, the alarm sounds differently than the normal alarm sound. This is not a
malfunction.
* When the alarm is sounding, if button A or B is pressed, the alarm stops sounding, but the stopwatch cannot be
operated. After the alarm sound stops, the stopwatch can be operated.
■ How to disengage the set alarm time
• If you want to disengage the set alarm time, reset the alarm time to the same time as the main time.
→ P.35
■ Alarm sound test
• To test the alarm sound, pull out the crown to the first click, and then long press button A (for about 4 seconds).
The alarm sounds while the button A is kept pressed.
* When you finish the sound test, push the crown back in to the normal position. For models with screw down crown,
please be sure to lock the crown after operating it. → P.15
EN
36
4
HOW TO USE THE ALARM
Charging the battery
■ How to charge the battery
Expose the dial to light to charge the watch.
To ensure optimal performance of the watch, make
sure that the watch is kept sufficiently charged at all
times.
Under the following situations, the energy of the
watch is likely to be depleted, resulting in stoppage
of the watch:
• The watch is concealed under a sleeve.
•
The watch is used or stored under conditions where
it cannot be exposed to light for a long time.
* Be careful to make sure that the watch does not get hot when it is charging. (The operating temperature range is
-10°C to +60°C.)
* When you first start using the watch or starting it after it stopped due to a lack of charge, charge the watch sufficiently
using the table on P.38 as a guide.
EN
37
5
SOLAR CHARGING FUNCTION
■ Guide to charging times
Charge the watch using the times below as a guide.
Illuminance
lx (LUX)
Light source
Condition
(Example)
Time required
for fully
charging the
watch
Time required
for charging the
watch to start
moving at one-
second intervals
Time required
for charging the
watch to last for
1 day
700 Fluorescent
light
General offices
-
60 hours
2.5 hours
3,000 Fluorescent
light
30 W 20 cm
110 hours
13 hours
33 minutes
10,000 Fluorescent
light
30 W 5 cm
30 hours
3.5 hours
9 minutes
10,000
Sunlight
Cloudy day
30 hours
3.5 hours
9 minutes
100,000
Sunlight
Sunny day (Under the
direct sunlight on a
summer day)
5 hours
36 minutes
2 minutes
The figures of “Time required for charging the watch to start moving at one-second intervals” are estimations
of time required to charge the stopped watch by exposing it to light until it moves at steady one-second
intervals. Even if the watch is partially charged for a shorter period, the watch will resume one-second
interval movement. However, it may shortly return to two-second interval movement. Use the charging time
in this column as a rough guide for sufficient charging time.
* The required charging time slightly varies depending on the model of the watch.
EN
38
5
SOLAR CHARGING FUNCTION
About energy
When the energy stored in the watch is running down, the seconds hand starts moving at two-
second intervals.
If the energy runs out, the watch will stop.
If the seconds hand starts moving at two-second intervals, fully charge the watch.
How to charge the battery → P.37
Guide to charging times → P.38
• Stopwatch cannot be operated while the seconds hand is moving at two-second intervals (this is not a
malfunction).
• If the seconds hand starts moving at two-second intervals while the stopwatch is counting, the stopwatch
hands return to 0 minute 0 second to reset the measurement.
• Alarm time setting cannot be carried out while the seconds hand is moving at two-second intervals.
• If the set alarm time is reached while the seconds hand is moving at two-second intervals, the alarm
does not sound (the set alarm time will be disengaged).
EN
39
5
SOLAR CHARGING FUNCTION
