Casio 3172 Mode Reference Guide, Conﬁguring Home City Settings, Timekeeping, TYO, OFF, DST, Mode, Mode, Mode, AUTO, AUTO, Note, SET Hold, SET Hold, Countdown, Scrolling

Operation Guide 3172

Radio-controlled Atomic Timekeeping Precautions

•Strong electrostatic charge can result in the wrong time setting.

•Even if a receive operation is successful, certain conditions can cause the time setting to be off by up to one second.

•The watch is designed to update the date and day of the week automatically for the period January 1, 2000 to December 31, 2099. Updating of the date by signal reception will no longer be performed starting from January 1, 2100.

•If you are in an area where signal reception is not possible, the watch keeps time with the precision noted in “Speciﬁcations”.

•The receive operation is disabled under any of the following conditions.

–While power is at Level 3 (L) or lower

–While the watch is in the power recovery mode

–While a sensor operation is being performed

–When the watch is in the function sleep state (“Power Saving”)

–While a countdown timer operation is in progress

•A receive operation is cancelled if an alarm sounds while it is being performed.

•The Home City setting reverts to the initial default of TYO (Tokyo) whenever the battery power level drops to Level 5 or when you have the rechargeable battery replaced. If this happens, change the Home City to the setting you want.

Mode Reference Guide

Your watch has 11 “modes”. The mode you should select depends on what you want to do.

	To do this:	Enter this mode:
	• View the current date in the Home City
	• Conﬁgure Home City and daylight saving time (DST) settings	Timekeeping Mode
	• Conﬁgure time and date settings manually
	View the sunrise and sunset times for a speciﬁc date	Sunrise/Sunset Mode
	• Determine your current bearing or the direction from your current
	location to a destination as a direction indicator and angle value	Digital Compass Mode
	• Determine your current location using the watch and a map
	• View the barometric pressure and temperature at your current location	Barometer/Thermometer Mode
	• View a graph of barometric pressure readings	Barometer/Thermometer Mode
	• View a graph of barometric pressure readings
	• View the altitude at your current location
	• Determine the altitude differential between two locations (reference	Altimeter Mode
	point and current location)	Altimeter Mode
	point and current location)
	• Record an altitude reading with the measurement time and date
	Recall records created in the Altimeter Mode	Data Recall Mode
	View the current time in one of 48 cities (31 time zones) around the globe	World Time Mode
	Use the stopwatch to measure elapsed time	Stopwatch Mode
	Use the countdown timer	Countdown Timer Mode
	Set an alarm time	Alarm Mode
	• Perform a time calibration receive operation	Receive Mode
	• Check whether the last receive operation was successful	Receive Mode
	• Check whether the last receive operation was successful

Selecting a Mode

•The illustration below shows which buttons you need to press to navigate between modes.

•For about one second after you enter a mode by pressing D, a pointer will appear on the display pointing the applicable mode name on the watch's bezel.

•In any mode, press L to illuminate the display.

Timekeeping Mode

World Time	Data Recall	Sunrise/Sunset
Mode	Mode	Mode

Stopwatch Mode	Countdown	Alarm Mode	Receive Mode
	Timer Mode

•You can use buttons A, B, and C to enter a sensor mode directly from the Timekeeping Mode or from another sensor mode. To enter a sensor mode from the Sunrise/Sunset Mode, Data Recall, World Time, Stopwatch, Countdown Timer, Alarm, or Receive Mode, ﬁrst enter the Timekeeping Mode and then press the applicable button.

Sensor Modes

Digital Compass Mode	Barometer/	Altimeter Mode
Digital Compass Mode	Thermometer Mode	Altimeter Mode

General Functions (All Modes)

The functions and operations described in this section can be used in all of the modes.

Auto Return Features

Conﬁguring Home City Settings

There are two Home City settings: actually selecting the Home City and selecting either standard time or daylight saving time (DST).

•The watch returns to the Timekeeping Mode automatically if you do not perform any button operation for two or three minutes in the Sunrise/Sunset, Data Recall, Alarm, Receive, or Digital Compass Mode.

•If you leave a screen with ﬂashing digits on the display for two or three minutes without performing any operation, the watch exits the setting screen automatically.

Initial Screens

When you enter the World Time, Alarm, or Digital Compass Mode, the data you were viewing when you last exited the mode appears ﬁrst.

Scrolling

The A and C buttons are used on the setting screen to scroll through data on the display. In most cases, holding down these buttons during a scroll operation scrolls through the data at high speed.

Timekeeping

Use the Timekeeping Mode to set and view the current time and date.

•Pressing E while in the Timekeeping Mode will cycle through the Timekeeping Mode display formats as shown below.

Day of the Week Screen			Year Screen	Barometric Pressure
PM	Day of	Month		Graph Screen
PM	Day of	Month		Barometric
indicator	week	Day	Year	Barometric
			Year	pressure graph

PM	City	Month
indicator	code	Day

Hour : Minutes Seconds DST indicator

To conﬁgure Home City settings

1.In the Timekeeping Mode, hold down E until the currently selected city code starts to ﬂash. This is the city code setting screen.

•Before the city code starts to ﬂash, the message SET Hold will appear on the display. Keep E depressed until SET Hold disappears and the city code starts to ﬂash.

•The watch will exit the setting mode automatically if you do not perform any operation for about two or three minutes.

•For details about city codes, see the “City Code Table”.

2.Press A (East) and C (West) to select the city code you want to use as your Home City.

•Keep pressing A or C until the city code you want to select as your Home City appears on the display.

3.Press D to display the DST setting screen.

4.Use A to cycle through the DST settings in the sequence shown below.

Auto DST (AUTO)

DST off (OFF)

DST on (On)

Hour : Minutes Seconds

•The Auto DST (AUTO) setting will be available only when a city code that supports time calibration signal reception is selected as the Home City. While Auto DST is selected the DST setting will be changed automatically in accordance with time calibration signal data.

•Note that you cannot switch between standard time and daylight saving time (DST) while UTC is selected as your Home City.

5.After all the settings are the way you want, press E twice to return to the Timekeeping Mode.

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

Note

•After you specify a city code, the watch will use UTC* offsets in the World Time Mode to calculate the current time for other time zones based on the current time in your Home City.

* Coordinated Universal Time, the world-wide scientiﬁc standard of timekeeping. The reference point for UTC is Greenwich, England.

•Selecting some city codes automatically makes it possible for the watch to receive the time calibration signal for the corresponding area. See “Radio Controlled Atomic Timekeeping” for details.