About Energy; Energy Depletion Forewarning Function; Power Save Function; World Time Function - Seiko 1B25 Instructions Manual

About Energy
■ Energy Depletion Forewarning Function
The energy depletion forewarning function is activated when the
energy stored in the watch runs low. In such a case, the second hand
moves at two-second intervals. If the watch continues to be in the
state of two-second interval movement, the watch switches to fi ve-
second interval movement, followed by a completely stopped state.
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If the energy depletion forewarning function is activated, charge the
watch suffi ciently.
How to Charge the Watch · ·························· P.116
Standard Charging Time · ····························· P.117
※ N either the buttons nor the crown can be operated while the second hand moves at two-second or
fi ve-second intervals (this is not a malfunction).
※ While the second hand moves at fi ve-second intervals, the hour hand and date stop operating.
※ W hile the second hand moves at two-second and fi ve-second intervals, the watch is unable to
receive radio signals automatically. After the watch is charged suffi ciently and the second hand
returns to normal one-second interval movement, conduct the manual reception of radio signals to
set the watch to the correct time. (Automatic Reception and Manual Reception → P.105)
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How to use the world time function
■ World time function
・ B y selecting a time zone (among 25 time zones around the world) or by setting a time diff erence, the watch can display the
local time in the selected area around the world.
・ I n the time zone setting mode,
the second hand indicates the
selected time zone.
・ I n the time difference setting
mode, the second hand indicates
the time diff erence.
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･ I f the time zone or time diff erence is set to a region in Japan (2 stations), China, the U.S.A. or
Germany, the watch displays the precise time and date by receiving radio signals after automatic
reception or manual reception, provided that the watch is within the radio signal reception range.
※ The watch is unable to receive radio signals outside the reception range.
→ Radio Signal Reception Range Indication P.106
→ How to select the time zone P.122
→ How to set the time diff erence P.124
※ Each indication may diff er depending on the model (design) of the watch.
→ Time zone display and time diff erence table P.126
120
Time zone indication 時差表示
■ Power Save Function
This watch is equipped with a power save function which can suppress energy consumption
when it is left without receiving an adequate light source for a certain length of time.
※ There are two types of power save mode.
Power Save 1
When the watch is exposed to a state without receiving
Condition
an adequate light source for 72 hours or longer.
T h e s e c o n d h a n d
stops pointing at the
15-second position,
a n d t h e h o u r a n d
Situation minute hands, and
date also stop.
The watch conducts
a u t o m a t i c r a d i o
signal receiving.
How to handle When the watch is exposed to an adequate light source for fi ve seconds or longer,
the situation it displays the current time again after the second hand is rapidly advanced.
Power Save 2
※ W hile the watch is being charged, the second hand moves at Five-second Intervals.
D uring the Five-second Interval Movement, neither the buttons nor the crown can be operated.
※ I f the Power Save 2 mode is prolonged, the stored power amount drops and the internal current time information stored will be lost.
W hen the watch returns to its normal movement of one-second interval after suffi ciently charging the battery, set the current time by
receiving a radio signal. (Automatic Reception and Manual Reception → P.105)
Example: How to display the local time in Honolulu (How to select the
time zone of HNL (Honolulu) or how to set the time diff erence to "-9".)
When the time zone is selected, the date is automatically adjusted in
conjunction with the hour hand.
<Before time zone setting>
Local time in Japan: 6th.,10 oʼclock 8 minutes and 42 seconds
Local time in Honolulu: 5th.,15 oʼclock 8 minutes and 42 seconds
Power Save 2
When the watch is in an insufficient
charging state for a long time.
T h e s e c o n d h a n d
stops pointing at the
4
45-second position,
a n d t h e h o u r a n d
minute hands, and
date also stop.
The watch does not
conduct automatic
radio signal receiving.
After suffi ciently charging the battery, set
the watch for the current time, if necessary.
119
<After time zone setting>
5
5
121