Operation Guide 5257
E-39
Stopwatch
Measuring unit: 1/100 second
Measuring capacity: 59'59.99''
Measuring modes: Elapsed time, split time, two finishes
Alarm:
5 daily alarms (4 one-time alarms: 1 snooze alarm); Hourly Time Signal
Illumination:
LED (light-emitting diode); selectable illumination duration
(approximately 1 second or 3 seconds)
Battery:
One lithium battery (Type: CR1220)
Approximately 3 years on type CR1220 (assuming alarm operation 20 seconds per
day and one illumination operation 1.5 seconds per day)
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Specifications
Accuracy at normal temperature:
±
30 seconds a month
Digital Timekeeping:
Hour, minutes, seconds, p.m. (PM), month, day, day of the week
Time format: 12-hour and 24-hour
Calendar system: Full Auto-calendar pre-programmed from the year 2000 to 2039
Other: 3 screen formats (Day of the Week, Month – Day, Hour: Minutes); Home City
code (can be assigned one of 31 city codes); Daylight Saving Time (summer
time)/Standard Time
Analog Timekeeping:
Hour, minutes (hand moves every 20 seconds)
World Time:
27 cities (29 time zones)
Other: Daylight Saving Time/Standard Time
Countdown Timer
Measuring unit: 1 second
Countdown range: 60 minutes
Countdown start time setting range: 1 to 60 minutes (1-minute increments)
Other: Auto-repeat timing; Progress beeper
E-37
World Time
•
All World Time Mode times are calculated from the current Home City time in the
Timekeeping Mode using UTC time differential values.
•
The UTC differential is a value that indicates the time difference between a
reference point in Greenwich, England and the time zone where a city is located.
•
The letters “UTC” is the abbreviation for “Universal Time Coordinated”, which is the
world-wide scientific standard of timekeeping. It is based upon carefully maintained
atomic (cesium) clocks that keep time accurately to within microseconds. Leap
seconds are added or subtracted as necessary to keep UTC in sync with the Earth’s
rotation.
Illumination Precautions
•
The illumination provided by the light may be hard to see when viewed under direct
sunlight.
•
Illumination automatically turns off whenever an alarm sounds.
•
Frequent use of illumination runs down the battery.
E-36
Timekeeping
•
Resetting the seconds to
00
while the current count is in the range of 30 to 59
causes the minutes to be increased by 1. In the range of 00 to 29, the seconds are
reset to
00
without changing the minutes.
•
With the 12-hour format, the
PM
indicator appears on the display for times in the
range of noon to 11:59 p.m. and no indicator appears for times in the range of
midnight to 11:59 a.m.
•
With the 24-hour format, times are displayed in the range of 0:00 to 23:59, without
any indicator.
•
The year can be set in the range of 2000 to 2039.
•
The watch’s built-in full automatic calendar makes allowances for different month
lengths and leap years. Once you set the date, there should be no reason to change
it except after you have the watch’s batteries replaced.
E-35
Auto Return Feature
If you leave a screen with flashing digits on the display for two or three minutes
without performing any operation, the watch automatically exits the setting screen.
Scrolling
The
B
and
D
buttons are used in various modes and setting screens 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.
Initial Screens
When you enter the World Time or Alarm Mode, the data you were viewing when you
last exited the mode appears first.
E-34
Reference
This section contains more detailed and technical information about watch operation.
It also contains important precautions and notes about the various features and
functions of this watch.
Graphic Area
The following describes the information indicated by the graphic area in each mode.
Graphic area
Mode
Timekeeping
World Time
Countdown Timer
Stopwatch
Alarm
Hand Setting
Graphic Area
Timekeeping Mode minutes
World Time Mode minutes
Countdown time seconds
Stopwatch time 1/10 seconds
No indication
No indication
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To specify the illumination duration
1. In the Timekeeping Mode, hold down
A
until the
seconds start to flash, which indicates the setting
screen.
2. Press
C
nine times so the illumination duration setting
screen is on the display.
3. While the illumination duration setting is flashing, press
D
to toggle the setting between one second ( ) and
three seconds ( ).
4. Press
A
to exit the setting screen.
E-32
Illumination
An LED (light-emitting diode) illuminate the display for
easy reading in the dark.
•
See “Illumination Precautions” on page E-37 for more
important information.
To turn on illumination
In any mode (except when a setting screen is on the
display), press
B
to turn on illumination.
•
You can use the procedure below to select either one
second or three seconds as the illumination duration.
When you press
B
, the illumination will remain on for
about one second or three seconds, depending on the
current illumination duration setting.
E-31
To turn the Hourly Time Signal on and off
1. In the Alarm Mode, use
D
to select the Hourly Time
Signal (
SIG
).
2. Press
A
to toggle it on (
ON
displayed) and off
(
OF
displayed).
•
The Hourly Time Signal on indicator is shown on the
display on the Alarm Mode Hourly Time Signal screen,
and in all other modes while the Hourly Time Signal is
turned on.
Hourly time signal
on indicator
On/Off status
E-30
To turn an alarm on and off
1. In the Alarm Mode, use
D
to select an alarm.
2. Press
A
to toggle it on (
ON
displayed) and off
(
OF
displayed).
•
Turning on a one-time alarm (
AL1
through
AL4
)
displays the alarm on indicator on its Alarm Mode
screen.
•
Turning on the snooze alarm (
SNZ
) displays the alarm
on indicator and snooze alarm indicator on the Alarm
Mode snooze alarm screen, and in all other modes.
•
In all modes (except for the Alarm Mode), the alarm on
indicator is shown for any alarm that is currently turned
on.
•
The alarm on indicator flashes while the alarm is
sounding.
•
The snooze alarm indicator flashes during the 5-minute
intervals between alarms.
Snooze alarm indicator
Alarm on indicator
On/Off status