> SOLAR CHARGING FUNCTION > Charging the battery

Charging the battery

How to charge the battery

Expose the dial to light to charge the watch.

Charging-1 AQ

To ensure optimal performance of the watch, make sure that the watch is kept sufficiently charged at all times.

Charging-2 AQ

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 0°C to +50°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 Guide to charging times as a guide.

Guide to charging times

Charge the watch using the times below as a guide.

Energy level display function

BATT 0
(All off)

BATT 1

BATT 2 - BATT 3

BATT 4 - BATT 6

BATT 7 - BATT 10

Charge time for one day’s use

Outside on a sunny day

Approx. 10 hours

Approx. 2 minutes

Approx. 8 hours

 

Approx. 4 hours

 

 

Approx. 2 hours

 

 

 

Window sill on a sunny day

Approx. 95 hours

Approx. 20 minutes

Approx. 80 hours

 

Approx. 40 hours

 

 

Approx. 15 hours

 

 

 

Window sill on a cloudy day

Approx. 310 hours

Approx. 60 minutes

Approx. 255 hours

 

Approx. 135 hours

 

 

Approx. 50 hours

 

 

 

Inside under a fluorescent light

Approx. 220 hours

 

 

 

Approx. 4 hours

In the digital display, “BATT” is shown as “bATT”.

If the time is not restored even after sufficient charging, conduct the procedures in “How to set the time and date” and “How to set the standard hand position”.
How to set the time and date
How to set the standard hand position

Energy levels

Two-second hand movement

When the energy level is low, the seconds hand will move every two seconds, which is called “two-second hand movement”.
If energy is completely depleted after that, the watch stops.

If “two-second hand movement” occurs, sufficiently charge the battery. How to charge the battery

During two-second hand movement, the light will not function and the alarm tone/operation confirmation sound will stop.

Energy level

The energy level can be checked by holding down Button Button B unless the digital display is showing the stopwatch.

K205_Battery level-1

If the energy level falls to “BATT 6” or below, try to charge the battery.

 

Energy level display function

Restrictions on operations and functions

What should you do?

Num1

BATT 10 - BATT 7

None.

Use the watch normally.

Num2

BATT 6 - BATT 4

Try to charge the battery. How to charge the battery

Num3

BATT 3 - BATT 2

Sufficiently charge the battery until it reaches Num1. How to charge the battery
After charging the battery, use the watch normally.

Num4

BATT 1

The light will not turn on.
The alarm tone/operation confirmation sound will stop.

Num5

BATT 0
(All off)

Sufficiently charge the battery until it reaches Num1. How to charge the battery

All function settings will be reset and the standard hand position data will also be lost.
After restoring the watch from BATT 0, follow the procedures in How to set the time and date and How to set the standard hand position.

If irregular movement occurs, reset the system. How to reset the system

Power saving/sleep function

If the dial is not exposed to light and the buttons are not operated for a certain period of time, the power save function activates.

Power save mode

If the dial is not exposed to light and the buttons are not operated for more than two hours, power save mode will be enabled.
When the watch is in power save mode, the “PS” symbol will flash.

K205_Power save mode

Sleep mode

If the dial is not exposed to light and the buttons are not operated for about three days, sleep mode will be enabled.
When the watch is in sleep mode, the “SL” symbol will flash.

During sleep mode, the stopwatch count will be reset and the alarm tone will be turned off.

K205_Sleep mode

Turning off the power save/sleep function

Performing one of the following operations will turn off the power save/sleep function:

Expose the watch to light

Operate any button

Pull out or push in the crown