2161/2251/2261-1
Module No. 2161/2251/2261
GENERAL GUIDE
• Press C to change from mode to mode. Each mode is explained in detail on the following pages.
• After you perform an operation in any mode, pressing C returns to the Timekeeping Mode.
• Press D in any mode to illuminate the display.
The operational procedures for Modules 2251, 2261 and 2161 are identical. All of the illustrations in this manual show Module 2161.
Timekeeping Mode
Alarm Mode
Countdown Alarm Mode
Stopwatch Mode
[Modules 2251, 2261]
[Module 2161]
ALARM MODE
TIMEKEEPING MODE
To set the time and date
1. Press A while in the Timekeeping Mode. The seconds
digits flash on the display because they are selected.
2. Press C to change the selection in the following se-
quence.
You can set an alarm with hour, minutes, month, and day.
When the alarm is on, the alarm sounds for 20 seconds at
the preset time. When the Hourly Time Signal is on, the
watch beeps every hour on the hour.
Alarm on indicator
Month - Day
Day of week
Hourly time
Mode
indicator
signal on
indicator
Alarm Types
Seconds
Day
Hour
Minutes
Year
The types of alarm you get depends on the information
you set.
Month
• To set a daily alarm
Set the hour and minutes for the alarm time. Set “–” for
the month and “– –” for the day (see step 3 under “To
set the alarm time”). This type of setting causes the alarm
to sound every day at the time you set.
Hour
Minutes
PM indicator
Seconds
Hour Minutes
Month - Day
• To set a date alarm
Set the month, day, hour and minutes for the alarm time.
This type of setting causes the alarm to sound at the
specific time, on the specific date you set.
3. While the seconds digits are selected (flashing), press B to reset the seconds to
“00”. If you press B while the seconds count is in the range of 30 to 59, the sec-
onds are reset to “00” and 1 is added to the minutes. If the seconds count is in the
range of 00 to 29, the minutes count is unchanged.
4. While any other digits (besides seconds) are selected (flashing), press B to in-
crease the number. Holding down B changes the number at high speed.
• To switch between the 12-hour and 24-hour formats, press D while some dig-
its are flashing.
5. After you set the time and date, press A to return to the Timekeeping Mode.
• The day of the week is automatically set in accordance with the date.
• The date can be set within the range of January 1, 1995 to December 31, 2039.
• If you do not operate any button for a few minutes while a selection is flashing, the
flashing stops and the watch goes back to the Timekeeping Mode automatically.
• To set a 1-month alarm
Set the month, hour and minutes for the alarm time. Set “– –” for the day (see step
3 under “To set the alarm time”). This type of setting causes the alarm to sound
every day at the time you set, only during the month you set.
• To set a monthly alarm
Set the day, hour and minutes for the alarm time. Set “–” for the month (see step 3
under “To set the alarm time”). This type of setting causes the alarm to sound
every month at the time you set, on the day you set.
To set the alarm time
1. Press A while in the Alarm Mode until the hour digits start to flash on the display.
The hour digits flash because they are selected.
• At this time the alarm is automatically switched on.
About the backlight
2. Press C to change the selection in the following sequence.
When you switch the backlight function on, the backlight of the watch flashes when-
ever alarm, countdown alarm or hourly time signal is sounding.
• Pressing D at any time illuminates the display for about two seconds, regardless of
the backlight’s on/off setting.
• The backlight of this watch employs an electro-luminescent (EL) light, which loses
its illuminating power after very long term use.
Hour
Day
Minutes
Month
3. Press B to increase the selected digits. Holding down B changes the number at
high speed.
• Frequent use of the backlight shortens the battery life.
• The format (12-hour and 24-hour) of the alarm time matches the format you select
To switch the backlight function on and off
for normal timekeeping.
In the Timekeeping Mode, hold down B for one or two seconds to switch the back-
light function on and off. When you switch the backlight function on, an indicator
appears on the display as shown.
• When setting the alarm time using the 12-hour format, take care to set the time
correctly as morning or afternoon.
4. After you set the alarm time, press A to return to the Alarm Mode.
• If you do not operate any button for a few minutes while a selection is flashing, the
flashing stops and the watch goes back to the Alarm Mode automatically.
Alarm on indicator
To stop the alarm
Press any button to stop the alarm after it starts to sound.
Hourly time signal
on indicator
Backlight function
on indicator
To switch an alarm and Hourly Time Signal on and off
Press B while in the Alarm Mode to change the status of an alarm (see “Alarm Types”)
and Hourly Time Signal in the following sequence.
• The backlight function indicator remains on the display in all modes until you switch
the backlight function off.
• The above operation controls operation of the backlight function only. It does not
affect operation of audible tones and signals.
Both off
Alarm only
Hourly Time Signal only
Both on
• The watch will emit an audible sound whenever the display is illuminated. This is
caused by a transistor that vibrates when the EL panel lights up. It does not indicate
malfunction of the watch.
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