Seiko ASTRON Basic Owner's Manual

2
BEFOREUSE
34
English
2
BEFOREUSE
35
English
Namesoftheparts
※ Keepthecrownlockedwhile
youarewearingthewatch.
Crown
（Screwlocktype）
ButtonB
Sub-dial
Indicatorhand
Main-Dial
Date
Second
hand
ButtonC
ButtonA
Indicatorhanddisplayandreceptionresultdisplay
※ Position of eachdisplaymay
differdependingonthemodel
(design).
 Checkthereceptionresult →P.47
 Manualtimeadjustment →P.4 4 〜 4 5
 Timezoneadjustment →P.39〜40
 Automatictimeadjustment →P.46
 Receiveleapseconddata  →P.48
Checkthechargingstatus.→P.36
Howtochargethewatch→P.37
 CheckDaylightSavingTime(DST) →P.41
 SetDaylightSavingTime(DST)→ P.41
Hand
position
F(full)
Levelposition 
(middle)
E(low)
Display
Hand
position
ON OFF
Display
Hand
position
In-flight
mode（ ）
status
Resetin-flight
mode（ ）
Display
In-flightmode（ ）→P.42
※ Itisdisplayedonly
whilethein-flight
modeisset.
Displayofchargingstatus
 Displayofin-flightmode ( )
 DisplayofDaylightSavingTime(DST)
Receiving
process
1(time
adjustment)
4+(timezone
adjustment)
Receivingleap
seconddata
Display
Y… Reception
successful

(12-secposition)
N… Reception
failed

(18-secposition)
【Checkingthe
receptionresult】
→
P.47
Displayof
receptionresult
Displayofreceivingprocess
Hour
hand
Minute
hand
Continuedonthefollowingpage
Continuedonthefollowingpage

Seiko ASTRON Specifications

Frequency

frequency of crystal oscillator	32, 768 Hz
loss/gain (monthly rate)	±15 seconds

Operating Environment

operational temperature range	−10°C to +60°C
normal temperature range	5°C to 35°C

Power

power source	Secondary battery, 1 piece
duration of operation (fully charged)	Approximately 6 months
duration of operation (power save activated)	Approximately 2 years