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Operation Guide 5176

E-40

 Before the city code starts to fl ash, the message 

SET Hold

 will appear on the 

display. Keep 

A

 depressed until 

SET Hold

 disappears and the city code 

starts to fl ash.

2. Keep pressing 

C

 until 

TEMP

 (temperature), 

ALTI

 (altitude), or 

BARO

 (barometric 

pressure) appears in the left corner of the screen.

 See step 3 under “To change the current time and date settings” (page E-18) for 

information about how to scroll through setting screens.

3. Perform the operations below to specify the units you want.

To specify this unit: Press this key: To toggle between these settings:

Temperature

D

°C

 (Celsius) and 

°F

 (Fahrenheit)

Altitude

D

m

 (meters) and 

ft

 (feet)

Barometric Pressure

D

hPa

 (hectopascals) and 

inHg

 (inches of mercury)

4. After the settings are the way you want, press 

A

 to exit the setting screen.

E-41

Precautions Concerning Simultaneous Measurement of Altitude and Temperature

Though you can perform altitude and temperature measurements at the same time, 
you should remember that each of these measurements requires different conditions 
for best results. With temperature measurement, it is best to remove the watch from 
your wrist in order to eliminate the effects of body heat. In the case of altitude 
measurement, on the other hand, it is better to leave the watch on your wrist, because 
doing so keeps the watch at a constant temperature, which contributes to more 
accurate altitude measurements.

 To give altitude measurement priority, leave the watch on your wrist or in any other 

location where the temperature of the watch is kept constant.

 To give temperature measurement priority, remove the watch from your wrist and 

allow it to hang freely from your bag or in another location where it is not exposed 
to direct sunlight. Note that removing the watch from your wrist can affect pressure 
sensor readings momentarily.

E-42

Checking the Current Time in a Different Time Zone

You can use the World Time Mode to view the current 
time in one of 31 time zones (48 cities) around the globe. 
The city that is currently selected in the World Time Mode 
is called the “World Time City”.

To enter the World Time Mode

Use

C

 to select the World Time Mode (

WT

) as shown on 

page E-10.

WT

 will appear on the display for about one second. 

Next, the display will change to show the city code of 
the currently selected World Time City.

To view the time in another time zone

In the World Time Mode, use 

D

 (East) to scroll through 

city codes.

Currently selected 
World Time City

Current time in the 
currently selected
World Time City

Current Timekeeping 
Mode time

Currently selected 
World Time City

Current time in the 
currently selected
World Time City

Current Timekeeping 
Mode time

E-43

To specify standard time or daylight saving time (DST) for a city

1. In the World Time Mode, use 

D

 (East) to display the 

city code (time zone) whose Standard Time/Daylight 
Saving Time setting you want to change.

2. Hold down 

A

 until 

DST Hold

 appears on the display 

and then disappears. Release 

A

 after 

DST Hold

disappears.

 This toggles the city code you selected in step 1 

between Daylight Saving Time (

DST

 indicator 

displayed) and standard time (

DST

 indicator not 

displayed).

 You cannot use the World Time Mode to change the current standard time/

daylight saving time (DST) setting of the Home City.

 Note that you cannot switch between standard time/daylight saving time (DST) 

while 

UTC

 is selected as the World Time City.

 Note that the standard time/daylight saving time (DST) setting affects only the 

currently selected time zone. Other time zones are not affected.

DST indicator

DST indicator

E-44

Using the Stopwatch

The stopwatch measures elapsed time, split times, and two fi nishes.

To enter the Stopwatch Mode

Use

C

 to select the Stopwatch Mode (

STW

) as shown on 

page E-10.

STW

 will appear on the display for about one second. 

Next, the display will change to show the stopwatch 
hours.

To perform an elapsed time operation

D

D

D

D

A

Start

Stop

(Restart)

(Stop)

Reset

To pause at a split time

D

A

A

D

A

Start

Split

(

SPL

 displayed)

Split release

Stop

Reset

1/100 second

Seconds

Minutes

Current time

Hours

1/100 second

Seconds

Minutes

Current time

Hours

E-45

To measure two fi nishes

D

A

D

A

A

Start

Split

First runner 
fi nishes.
Display time of 
fi rst runner

Stop

Second runner 
fi nishes.

Split release

Display time of 
second runner

Reset

Note

 The Stopwatch Mode can indicate elapsed time up to 23 hours, 59 minutes, 59.99 

seconds.

 Once started, stopwatch timing continues until you press 

A

 to stop it, even if you 

exit the Stopwatch Mode to another mode and even if timing reaches the stopwatch 
limit defi ned above.

 Exiting the Stopwatch Mode while a split time is frozen on the display clears the 

split time and returns to elapsed time measurement.

E-46

Using the Countdown Timer

The countdown timer can be confi gured to start at a preset time, and sound an alarm 
when the end of the countdown is reached.

To enter the Countdown Timer Mode

Use

C

 to select the Countdown Timer Mode (

TMR

) as 

shown on page E-10.

TMR

 will appear on the display for about one second. 

Next, the display will change to show the countdown 
time hours.

To specify the countdown start time

1. Enter the Countdown Timer Mode.

 If a countdown is in progress (indicated by the 

seconds counting down), press 

D

 to stop it and 

then press 

A

 to reset to the current countdown 

start time.

 If a countdown is paused, press 

A

 to reset to the 

current countdown start time.

Current time

Countdown time 
(Hour, minutes, 
seconds)

Current time

Countdown time 
(Hour, minutes, 
seconds)

E-47

2. Hold down 

A

 until the hour setting of the current countdown start time starts to 

fl ash. This is the setting screen.

 Before the hour setting starts to fl ash, the message 

SET Hold

 will appear on the 

display. Keep 

A

 depressed until 

SET Hold

 disappears and the hour setting 

starts to fl ash.

3. Press 

C

 to move the fl ashing between the hour and minute settings.

4. Use 

D

 (+) and 

B

 (–) to change the fl ashing item.

 To set the starting value of the countdown time to 24 hours, set 

0H 00’00

.

5. Press 

A

 to exit the setting screen.

E-48

To perform a countdown timer operation

D

D

D

D

A

Start

Stop

(Restart)

(Stop)

Reset

 Before starting a countdown timer operation, check to make sure that a countdown 

operation is not already in progress (indicated by the seconds counting down). If it 
is, press 

D

 to stop it and then 

A

 to reset to the countdown start time.

 An alarm sounds for fi ve seconds when the end of the countdown is reached. This 

alarm will sound in all modes. The countdown time is reset to its starting value 
automatically when the alarm sounds.

To stop the alarm

Press any button.

E-49

Using the Alarm

You can set fi ve independent daily alarms. When a daily 
alarm is turned on, an alarm tone will sound for about 10 
seconds each day when the time in the Timekeeping 
Mode reaches the preset alarm time. This is true even if 
the watch is not in the Timekeeping Mode.
You can also turn on an Hourly Time Signal, which will 
cause the watch to beep twice every hour on the hour.

To enter the Alarm Mode

Use

C

to select the Alarm Mode (

ALM

) as shown on 

page E-10.

ALM

 will appear on the display for about one second. 

Next, the display will change to show an alarm number 
(

AL1

 through 

AL5

) or the 

SIG

 indicator. The alarm 

number indicates an alarm screen. 

SIG

 is shown when 

the Hourly Time Signal screen is on the display.

 When you enter the Alarm Mode, the data you were 

viewing when you last exited the mode appears fi rst.

Current time

Alarm
number or 
SIG

Alarm time 
(Hour : Minutes)

Current time

Alarm
number or 
SIG

Alarm time 
(Hour : Minutes)

Summary of Contents for SGW400H-1B

Page 1: ...he current time and date settings E 22 Hand Home Position Correction E 22 To adjust home positions E 6 E 23 Barometer Thermometer E 23 To enter and exit the Barometer Thermometer Mode E 28 To calibrat...

Page 2: ...ress C to display the DST setting screen 4 Press D to toggle between Daylight Saving Time On and Standard Time OFF Note that you cannot switch between standard time and daylight saving time DST while...

Page 3: ...display unit for the measured temperature value See To specify temperature barometric pressure and altitude units page E 39 Barometric Pressure Differential Pointer This pointer indicates the relativ...

Page 4: ...l SET Hold disappears 2 Press D or B to change the current reference altitude value by 5 meters or 20 feet Specify a reference altitude value based on accurate altitude information about your current...

Page 5: ...d two nishes To enter the Stopwatch Mode Use C to select the Stopwatch Mode STW as shown on page E 10 STW will appear on the display for about one second Next the display will change to show the stopw...

Page 6: ...sounds any time you press one of the watch s buttons You can turn the button operation tone on or off as desired Even if you turn off the button operation tone the alarm Hourly Time Signal and Countd...

Page 7: ...rential 2 15 m m altitude differential 2 50 ft ft pressure differential 2 2 hPa hPa pressure differential 2 0 059 inHg inHg 6000 to 10000 m 19680 to 32800 ft altitude differential 2 25 m m altitude di...

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