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Operation Guide 5155
Illumination Precautions
The electro-luminescent panel that provides illumination loses power after very long
use.
Illumination may be hard to see when viewed under direct sunlight.
The watch may emit an audible sound whenever the display is illuminated. This
is due to vibration of the EL panel used for illumination, and does not indicate
malfunction.
Illumination automatically turns off whenever an alarm sounds.
Frequent use of illumination runs down the battery.
E-20
Watch Function Battery: One silver oxide battery (Type: SR-920W)
Approximately 3 years (assuming alarm operation 20 sec./
day)
Light Battery: One lithium battery (Type: CR1616)
Approximately 3 years (assuming light operation 5 sec./day)
*
The manufacturer recommends that the watch function battery and light battery
always be replaced at the same time.
E-22
Specifi cations
±
Accuracy at normal temperature:
30 seconds a month
Timekeeping: Hour, minutes, seconds, p.m. (P)
Time system: Switchable between 12-hour and 24-hour formats
Calendar: Month, day, day of week
Calendar system: Auto-calendar set at 28 days for February
Alarm: Daily Alarm; Hourly Time Signal
Dual Time: Hour, minutes, seconds, p.m. (P)
Time system: Switchable between 12-hour and 24-hour formats
Stopwatch
Measuring unit: 1/100 second
Measuring capacity: 59 minutes 59.99 seconds
Measuring mode: Elapsed time
Other: 2 analog hands: hour, minutes (hand moves every 20 seconds)
E-21
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