Casio 4739, MO0907-EA l ll, Power Supply, Daylight Saving Time (DST), Analog Timekeeping, OFF, 12H, 24H, LIS, LON, MAD, PAR, ROM, BER, STO, ATH, MOW, HKG, BJS, TPE, SEL, TYO, HNL

Operation Guide 4739

To set the current digital time and date manually

City code

1. In the Timekeeping Mode, hold down Auntil the city

code starts to flash, which indicates the setting screen.

ll

l ll

2. Press Cto move the flashing in the sequence shown

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below to select other settings.

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City Code

DST

12/24-Hour

Seconds

Hour

Format

Power

Day

Month

Year

Minutes

Saving

3.When the setting you want to change is flashing, use D to change it as described below.

Screen:	To do this:	Do this:
	Change the city code	Press D(east).
	Cycle between Daylight Saving Time	Press D.
	(ON), Standard Time (OFF), and
	Auto DST (AUTO)
	Toggle between 12-hour (12H) and	Press D.
	24-hour (24H) timekeeping
	Reset the seconds to 00	Press D.
	Change the hour or minutes	Press D(+).
	Change the year
	Change the month or day
	Toggle Power Saving on (PSON)	Press D.
	and off (PSOF)

•See “City Code Table” for a complete list of available city codes.

•Auto DST (AUTO) can be selected only while LIS, LON, MAD, PAR, ROM, BER, STO, ATH, MOW, HKG, BJS, TPE, SEL, TYO, HNL, ANC, YVR, LAX, YEA, DEN, MEX, YWG, CHI, MIA, YTO, NYC, YHZ, or YYT is selected as the Home City code. For more information, see “Daylight Saving Time (DST)” below.

•For information about settings other than the time and date, see the following. Power Saving: Power Saving Function

4.Press Ato exit the setting screen.

Daylight Saving Time (DST)

Daylight Saving Time (summer time) advances the time setting by one hour from Standard Time. Remember that not all countries or even local areas use Daylight Saving Time.

The time calibration signals transmitted from Mainflingen (Germany), Anthorn (England), or Fort Collins (the United States) include both Standard Time and DST data. When the Auto DST setting is turned on, the watch switches between Standard Time and DST (summer time) automatically in accordance with the signals.

•The time calibration signals transmitted from Fukushima and Fukuoka/Saga (Japan) do not include summer time data.

•The default DST setting is Auto DST (AUTO) whenever you select LIS, LON, MAD, PAR, ROM, BER, STO, ATH, MOW, HKG, BJS, TPE, SEL, TYO, HNL, ANC, YVR, LAX, YEA, DEN, MEX, YWG, CHI, MIA, YTO, NYC, YHZ, or YYT as your Home City code.

•If you experience problems receiving the time calibration signal in your area, it is probably best to switch between Standard Time and Daylight Saving Time (summer time) manually.

To change the Daylight Saving Time (summer time) setting

1.In the Timekeeping Mode, hold down Auntil the city code starts to flash, which indicates the setting screen.

2.Press Conce and the DST setting screen appears.

3.Use D to cycle through the DST settings in the sequence shown below.

Auto DST (AUTO) DST off (OFF) DST on (ON)

4. When the setting you want is selected, press Ato exit the setting screen.

•The DST indicator appears on the display to indicate that Daylight Saving Time is turned on.

Analog Timekeeping

The analog time of this watch is synchronized with the digital time. The analog time setting is adjusted automatically whenever you change the digital time.

Note

•The hands for the analog timepiece move to adjust to a new setting whenever any of the following occurs.

When you change the digital time setting manually

When the digital time setting is changed by time calibration signal reception When you change the Home City code and/or DST setting

•If the analog time does not match the digital time for any reason, use the procedure described under “To adjust the analog time” to match the analog setting to the digital setting.

•Whenever you need to adjust both the digital and the analog time settings manually, make sure you adjust the digital setting first.

•Depending on how much the hands have to move in order to adjust to the digital

time, it may take some time before they stop moving.

To adjust the analog time

				1. In the Timekeeping Mode, press C six times to enter
				the Hand Setting Mode.
				2. Hold down Auntil the current digital time starts to
ll				flash, which indicates the setting screen.
				3. Use Dand Bto adjust the analog setting as
l	l			described below.
		l
l		l
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l	l		l
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When you want to do this:					Perform this button operation:
Move the hand setting					• Press D.
forward 20 seconds
Move the hand setting a short					• Hold down D.
way forward at high speed					• Release D when the hands reach the setting
					you want.
Move the hand setting a					• While holding down Dto move the hands at
long way forward at high					high speed, press Bto lock the high-speed
speed					hand movement.
					• To stop the hand movement, press any
					button.
					• Hand movement stops automatically if the hour
					hand makes one full (12-hour) revolution.

4. Press Ato exit the setting screen.

•The minute hand will be adjusted slightly to match the seconds when you exit the setting screen.

•To return to the Timekeeping Mode, press C.

Power Supply

This watch is equipped with a solar cell and a special rechargeable battery (secondary battery) that is charged by the electrical power produced by the solar cell. The illustration shown below shows how you should position the watch for charging.

Example: Orient the watch so its face	Solar cell
is pointing at a light source.
• The illustration shows how to position
a watch with a resin band.
• Note that charging efficiency drops
when any part of the solar cell is
blocked by clothing, etc.
• You should try to keep the watch
outside of your sleeve as much as
possible. Charging is reduced
significantly if the face is only partially
covered.

Important!

•Storing the watch for long periods in an area where there is no light or wearing it in such a way that it is blocked from exposure to light can cause rechargeable battery power to run down. Make sure that the watch is normally exposed to bright light whenever possible.

•This watch uses a special rechargeable battery to store power produced by the solar cell, so regular battery replacement is not required. However, after very long use, the rechargeable battery may lose its ability to achieve a full charge. If you experience problems getting the special rechargeable battery to charge fully, contact your dealer or CASIO distributor about having it replaced.

•Never try to remove or replace the watch’s special battery yourself. Use of the wrong type of battery can damage the watch.

•The current time and all other settings return to their initial factory defaults whenever battery power drops to Level 5 and when you have the battery replaced.

•Turn on the watch’s Power Saving function and keep it in an area normally exposed to bright light when storing it for long periods. This helps to keep the rechargeable battery from going dead.

To check the current battery level

In the Timekeeping Mode, press Cto display the battery level indicator.

Battery level indicator

•The battery level indicator shows you the current power level of the rechargeable battery.

Level	Battery Level Indicator				Function Status
1					All functions enabled.
2					All functions enabled.
	ll		l		Alarm, hourly time signal, illumination and
3	llll
	l		l		time calibration signal reception disabled.
	l	l
	(Charge Soon Alert)
		llll
	ll			l
		l		l
4			ll		All functions disabled.
	(Charge Soon Alert)
5					All functions, including timekeeping,
					disabled and initialized.

•The flashing Low indicator (L) at Level 3 and the flashing charge indicator (C) at Level 4 tell you that battery power is very low, and that exposure to bright light for charging is required as soon as possible.

•At Level 5, all functions are disabled and settings return to their initial factory defaults. Functions are enabled once again after the rechargeable battery is charged, but you need to set the time and date, after the battery reaches Level 4 (indicated by the flashing charge indicator (C)) from Level 5. You will not be able to configure any of the other settings until the battery reaches Level 3 (no charge

indicator) after dropping to Level 5.

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