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 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. 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.

Guide to charging times

Charge the watch using the times below as a guide.

Energy level display function	BATT 0 (All off)	Charge time for one day’s use
Outside on a sunny day	Approx. 9 hours	Approx. 6 minutes
	Approx. 6 hours
	Approx. 3 hours
	Approx. 2 hours
Window sill on a sunny day	Approx. 90 hours	Approx. 20 minutes
	Approx. 60 hours
	Approx. 30 hours
	Approx. 15 hours
Window sill on a cloudy day	Approx. 280 hours	Approx. 70 minutes
	Approx. 200 hours
	Approx. 100 hours
	Approx. 50 hours
Inside under a fluorescent light	Approx. 200 hours	Approx. 4.5 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, the alarm tone/operation confirmation sound will stop, and diving log recording cannot be started.

Energy level

The energy level can be checked by holding down Button Button B unless the digital display is showing the stopwatch, diving log, or is in diving mode.

When the energy level display is between BATT 3 and BATT 2, the charge required symbol Batt charge will light up. When this symbol lights up, the watch functionality is not restricted, but the user should keep in mind to charge the watch.

When BATT 1 is reached, the watch will enter two-second hand movement and the charge required symbol Batt charge will flash. In this state, the light will not function, the alarm tone/operation confirmation sound will stop, and diving log recording cannot be started.

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

Energy level display function	Display	Restrictions on operations and functions	What should you do?
BATT 10 - BATT 7	Normal digital display Normal hand movement	None.	Use the watch normally.
BATT 6 - BATT 4	Normal digital display Normal hand movement		Try to charge the battery. How to charge the battery
BATT 3 - BATT 2	Charge required symbol lights up Normal hand movement		Sufficiently charge the battery until it reaches . How to charge the battery After charging the battery, use the watch normally.
BATT 1	Charge required symbol flashes Seconds hand moving at two-second hand movement	The light will not turn on. The alarm tone/operation confirmation sound will stop. Diving log recording will not start.
BATT 0	Digital display turns off completely All hands stop at 12 o’clock position	Sufficiently charge the battery until it reaches . 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.

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.

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