This section provides an overview of the watch and introduces convenient ways it can be used.

Watch Features

Phone Linking

The watch supports connection and communication with a Bluetooth capable phone.

World Time

Display the current time in any one of 38 time zones* around the globe.

Alarm

An alarm sounds whenever a time specified by you is reached.

Stopwatch

The stopwatch measures elapsed time in units of 1/100 second for the first hour, and in one-second units thereafter, for up to 24 hours.

Timer

Countdown from a start time specified by you. An alarm sounds when the countdown reaches zero.

Step Count

The step counter counts your steps as you walk or run. After you specify a daily target, a graphic display shows approximately how much of the target you have achieved and how much more you need to do.

General Guide

1. Hour hand

2. Minute hand

3. LCD

A button

Holding down this button for at least two seconds in any mode displays the setting screen.

B button

Pressing this button in the Timekeeping Mode cycles between displays.
Pressing this button while any setting screen is displayed changes the setting.

C button

Each press cycles between watch modes.
In any mode, hold down this button for at least one second to return to the Timekeeping Mode.

D button

Pressing this button while any setting screen is displayed changes the setting.

L button

Press to turn on illumination.

Watch Face and Display Indicators

1. Displayed while there is a Bluetooth connection between the watch and a phone.

2. Shows how much of your step target you have attained.

3. Displayed during p.m. times while 12-hour timekeeping is being used.

4. Displayed while Full Auto Light is enabled.

5. Indicate whether or not the step count is being incremented.

6. Shows the current charge level.

7. Displayed while an alarm is turned on.

8. Displayed while the hourly time signal is enabled.

9. Flashes when your step count remains low for a certain period.

10. Displayed while the step count is displayed.

11. Flashes while the watch’s hands are shifted for easier reading.

12. Displayed while the watch is indicating summer time.

Navigating Between Modes

Each press of (C) cycles between watch modes.

In any mode, hold down (C) for at least one second to return to the Timekeeping Mode.

Connecting with a Phone

Hold down (C) for at least three seconds to connect with a phone.

To disconnect, press any button.

Cycling Between Timekeeping Mode Digital Display Contents

Each press of (B) in the Timekeeping Mode cycles the display information as shown below.

App Info Screen

The app info screen shows information received when the watch connects with a phone to adjust its current time setting. This screen shows CASIO WATCHES update and other information.

When CASIO WATCHES information is received while the watch is in the Timekeeping Mode, the watch automatically switches to the app info screen.

The app info screen automatically returns to the normal timekeeping screen at midnight.

Shifting Hands to Read the Digital Display

Hand shift moves the hands out of the way for easy viewing of display information.

1. While holding down (L), press (C).

This shifts the analog hands to allow easy viewing of display information.



2. To return the hands to their normal timekeeping positions, hold down (L) as you press (C) again, or press (C) to change to another mode.

Charging

This watch runs on power supplied from a rechargeable (secondary) battery that is charged by a solar panel. The solar panel is integrated into the face of the watch, and power is generated whenever the face is exposed to light.

Charging the Watch

When you are not wearing the watch, put it in a location where it is exposed to bright light.

While you are wearing the watch, make sure that its face (solar panel) is not blocked from light by the sleeve of your clothing. Power generation efficiency is reduced even when the face of the watch is blocked only partially.

Important!

Some light sources and environments can cause the watch to become extremely hot during charging, which creates the risk of burn injury and damage to internal watch components.
Avoid charging the watch under conditions like the ones described below, where the temperatures may exceed 60 °C (140 °F).

On the dashboard of a vehicle parked in the sun

Near incandescent lamps, camera lights, halogen lamps, or other sources of heat

In locations exposed to direct sunlight for long periods and other hot locations

Checking the Charge Level

A display indicator shows the watch’s current charge level.

1. Good (high charge)

2. Good (medium charge)

3. Low Battery

Low Battery

A low battery causes [L] and [LOW] to flash and disables the functions below.

Step Count

Step count display

Illumination

Sounds (alarm, etc.)

Connection with a phone

If the charge level drops even further, [CHG] will flash and the hour and minute hands will stop at 12 o’clock. If this happens, all functions are disabled.

Dead Battery

The digital display goes blank if the battery goes dead. Memory data is lost, and watch settings are returned to their initial factory defaults.

Important!

Should the battery go low or go dead, expose the face (solar panel) to light as soon as possible.

Exposing the watch to light while its battery is dead causes [CHG] to start flashing. Expose the watch to light to charge it until the Timekeeping Mode screen re-appears.

Note

When [H], [M], and [L] are flashing, it means that all functions other than timekeeping are unavailable due to temporary battery depletion.

[H], [M], and [L] are flashing on the display.

Charging Time Guidelines

The table below shows guidelines for approximate charging times.

Charging Times Required for 1 Day of Operation

Light Level (Lux)	Approximate Charging Time
50,000	11 minutes
10,000	39 minutes
5,000	62 minutes
500	8 hours

Charge Recovery Times

Sunny day, outdoors (50,000 lux)

Dead battery Medium charge	3 hours
Medium charge High charge	24 hours
High charge Full charge	7 hours

Sunny day, near a window (10,000 lux)

Dead battery Medium charge	9 hours
Medium charge High charge	92 hours
High charge Full charge	25 hours

Overcast day, near a window (5,000 lux)

Dead battery Medium charge	13 hours
Medium charge High charge	150 hours
High charge Full charge	40 hours

Indoor fluorescent lighting (500 lux)

Dead battery Medium charge	164 hours
Medium charge High charge	-
High charge Full charge	-

Note

Actual charging time depends on the charging environment, watch settings, and other factors.

Power Saving Function

Leaving the watch in a dark location for about one hour between the hours of 10 p.m. and 5:50 a.m. causes the display to go blank and then the watch enters Level 1 power saving. If the watch is left in this condition for six or seven days, it enters Level 2 power saving.

Power Saving Level 1:

Digital display goes blank to save power. The watch can connect with a phone at this level.

Power Saving Level 2:

All hands stop and the digital display goes blank to save power. All functions are disabled.

Recovering from Power Saving Operation

Use one of the operations below to exit power saving.

Press any button.

Move the watch to a bright location.

Trigger Full Auto Light by angling the watch towards your face.

Note

You can enable or disable Power Saving.

Configuring Power Saving Function Settings

Note that the watch also may enter power saving if its face is blocked from light by your sleeve while you are wearing it.

Viewing the Face in the Dark

The watch has an LED light that you can turn on for reading in the dark.

Turning On Illumination

Press (L) to illuminate the face and digital display.

Illumination turns off automatically if an alarm starts to sound.

Illumination does not turn on while Bluetooth communication or a high-speed hand movement operation is in progress.

The light may flicker when it turns on or off.

To illuminate the face when Auto Light is enabled

If Full Auto Light is enabled, face illumination turns on automatically whenever the watch is positioned at an angle of 40 degrees or more.

Important!

Auto Light may not operate properly when the watch is at a horizontal angle of 15 degrees or greater from horizontal as shown in the illustration below.

Electro-static charge or magnetism can interfere with proper Full Auto Light operation. If this happens, try lowering your arm and then angle it towards your face again.

When moving the watch you may note a slight rattling sound. This is the sound of Full Auto Light switch operation and does not indicate malfunction.

Configuring the Full Auto Light Setting

1. Enter the Timekeeping Mode.

Navigating Between Modes

2. Hold down (L) for at least three seconds to toggle Full Auto Light between enabled and disabled.

[LT] is displayed while Full Auto Light is enabled.

Specifying the Illumination Duration

You can select either 1.5 seconds or three seconds as the illumination duration.

1. Enter the Timekeeping Mode.

Navigating Between Modes

2. Hold down (A) for at least two seconds.

This causes the current step reminder setting ([ON] or [OFF]) to flash on the display.



3. Press (C) 13 times to display [LT].



4. Press (D) to select an illumination duration.

[LT1]: 1.5-second light

[LT3]: 3-second light



5. Press (A) to exit the setting screen.

Useful Features

Pairing the watch with your phone makes a number of the watch’s features easier to use.

Auto time correction

Selection of More Than 300 World Time cities

In addition, a number of other watch settings can be configured using your phone.

To transfer data to a watch and to configure settings, you first need to pair the watch with your phone.

Your phone needs to have the “CASIO WATCHES” phone app installed to pair with the watch.