User guide

ManualsBrandsSeiko ManualsGadgetsCal. V137

ASTRON 7X52 GPS SOLAR

FUNCTION LIST/SPECIFICATIONS

CONTENTS

SPECIFICATIONS

Function for reception

Other functions

In-flight mode ( ) …………………………

 P. 19

Function to prevent the GPS signal reception

function from working. Set this mode when

boarding an airplane, etc.

Satellites acquisition status display function

…

 P. 15

Displays by the second hand the number of GPS

satellites from which GPS signals are received

during GPS signal reception.

Reception result display function ………

 P. 24

Displays the latest reception result (success/

failure).

Time zone setting check function ………

 P. 16

Displays the currently set time zone

1. Basic function ……………………… Main-dial; three hands (hour/minute/second hands),

date display, indicator hand, sub-dial; two hands (hour/

minute hands)

2. Frequency of crystal oscillator … 32,768 Hz (Hz = Hertz ... Cycles per second)

3. Loss/gain (monthly rate) ………… Loss / gain ±15 seconds on a monthly rate (Except the

case when the watch is used without an automatic time

setting by receiving GPS signal and when it is worn on

the wrist within a normal temperature range between

5°C and 35°C ).

4. Operational temperature range … Between −10°C and +60°C

5. Driving system …………………… Step motor (hour/minute/second hands of main-dial,

date, indicator hand, hour/minute hands of sub-dial)

6. Power source ……………………… Secondary battery, 1 piece

7. Duration of operation …………… Approximately 6 months (Fully charged, and the Power

Save is not activated).

 If the Power Save is activated after it is fully charged,

the watch

continues to run for approximately 2 years at maximum.

8. GPS signal reception function … Time zone adjustment, manual time adjustment,

automatic time adjustment

9. IC (Integrated Circuit) …………… Oscillator, frequency divider and driving circuit C-MOS-

IC, 4 pieces

Dual time display …………………………

 P. 25

Displays at the sub-dial located on the 6:00

position (in 24-hour display) the time of a region

different from the time of the dial.

Automatic hand position alignment function

…

 P. 52

Automatically corrects misalignment when the

hands are misaligned due to external factors such

as magnetic influence.

Automatic leap second reception function

…

 P. 30

Automatically receives leap second data when

leap second data reception is necessary.

 The specifications are subject to change without prior notice for product improvement.

Declaration of Conformity