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Operation Guide 3257

E-40

Backlight Precautions

The illumination provided by the backlight may be hard to see when viewed under
direct sunlight.

The backlight automatically turns off whenever an alarm sounds.

Frequent use of the backlight shortens the battery life.

Auto light switch precautions

Wearing the watch on the inside of your wrist and movement or vibration of your arm
can cause the auto light switch to activate and illuminate the display. To avoid
running down the battery, turn off the auto light switch whenever engaging in
activities that might cause frequent illumination of the display.

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The backlight may not light if the face of the watch is
more than 15 degrees above or below parallel. Make
sure that the back of your hand is parallel to the ground.

The backlight turns off in about one second, even if you
keep the watch pointed towards your face.

Static electricity or magnetic force can interfere with
proper operation of the auto light switch. If the backlight
does not light, try moving the watch back to the starting
position (parallel with the ground) and then tilt it back
toward you again. If this does not work, drop your arm
all the way down so it hangs at your side, and then bring
it back up again.

Under certain conditions, the backlight may not light until
about one second after you turn the face of the watch
towards you. This does not necessarily indicate
malfunction of the backlight.

More than 15 degrees
too high

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Specifications

Accuracy at normal temperature:

± 30 seconds a month

Timekeeping:

Hour, minutes, seconds, p.m. (P), year, 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

Stopwatch:

Time and distance measurements

Measuring unit: 1/100 seconds (lower part of the display for first 60 minutes, center

part of the display for first 10 hours) or 1 second (lower part of the
display for after 60 minutes, center part of the display for after 10
hours); 0.1 mile or km

Measuring capacity: 99:59'59"; 99.9 miles or km; 999.9 miles or km (total distance

covered)

Measuring modes: Elapsed time, lap/split times
Memory capacity: 61 records (used by lap/split time records and log title screens);

total distance covered

Basic data input: Stride length
Other: Pacer signal; Lap/split number (from 01 to 99); Best lap time screen

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Countdown Timer:

Measuring unit: 1 second
Input range: 1 minute to 100 hours (1-minute increments and 1-hour increments)
Other: Auto-repeat timing

Alarms:

5 daily alarms (Four one-time alarms; one snooze/one-time alarm); Hourly

Time Signal

Dual Time:

Hour, minutes, seconds, p.m. (P)

Other:

Backlight (light-emitting diode); Auto Light Switch

Battery:

One lithium battery (Type: CR2025)

Approximately 10 years on type CR2025 (assuming alarm operation 10 sec./day,
one backlight operation 1.5 sec./day, and stopwatch operation with pacer signal
(pacer value: 120) 30 sec./week)

Summary of Contents for 3257

Page 1: ...inutes Seconds Year Day of week Month Day PM indicator E 7 Button Operation Press D to reset to Use D and C to change the setting Press D to toggle between 12 hour and 24 hour timekeeping Use D and C to change the setting 4 Press A to exit the setting screen The 12 hour 24 hour timekeeping format you select in the Timekeeping Mode is applied in all modes The day of the week is automatically displa...

Page 2: ...ecify either centimeters XM or inches Yn as the stride length unit The unit you specify for the stride length unit also determines the unit of measurement used for the distance value in the Stopwatch Mode and Recall Mode as shown below E 14 Setting Range 40 to 190 cm 16 to 76 in Setting Increment 5 cm 2 in Distance Unit Kilometers km Miles mi The following examples illustrate how you can calculate...

Page 3: ...rt time is displayed on the Countdown Timer Mode screen hold down D for about two seconds to toggle auto repeat on displayed and off not displayed When auto repeat is turned on the alarm sounds and countdown starts again whenever the countdown reaches zero You can stop the countdown by pressing C and manually reset to the countdown start time by pressing D Auto repeat timing repeats up to seven ti...

Page 4: ...larm Mode the screen you were viewing when you last exited the mode appears first Data and Setting Scrolling The C 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 E 36 Timekeeping Resetting the seconds to 00 while the current count is in the ra...

Page 5: ...e watch towards you This does not necessarily indicate malfunction of the backlight More than 15 degrees too high E 42 Specifications Accuracy at normal temperature 30 seconds a month Timekeeping Hour minutes seconds p m P year 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 Stopwatch Time and distance measureme...

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