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１．About this product
Handling cautions ........................... 84
About the Radio Act ........................ 89
........................... 91
Ⓡ
Features .......................................... 93
What you can do with this technology ... ... 96
Marks and indicators ..................... 99
２．Before use
Before mountain climbing ............ 100
How to charge .............................. 101
(1）How to charge ... .................. 101
（2）Standard charging time ...... 102
■ Power reserve .................. 103
■ Power save and sleep function ... 105
３．Watch functions
Pairing .......................................... 107
82
Handling cautions
1
To indicate the risks of serious consequences such as severe injuries unless the
following safety regulations are strictly observed.
・Immediately stop wearing the watch in following cases.
○ If the watch body or band becomes edged by corrosion etc.
○ If the pins protrude from the band
※ Immediately consult the retailer from whom the watch was purchased or SEIKO CUSTOMER SERVICE CENTER.
・Keep the watch and accessories out of the reach of babies and children.
C are should be taken to prevent a baby or a child accidentally swallowing the accessories.
I f a baby or a child swallows the battery or accessories, immediately consult a doctor, as
it will be harmful to the health of the baby or child.
・Do not remove the secondary battery from the watch.
※ About the secondary battery → Power source page 151
R eplacement of the secondary battery requires professional knowledge and skill. Please ask
the retailer from whom the watch was purchased for replacement of the secondary battery.
I nstallation of an ordinary silver oxide battery can generate heat that can cause bursting and ignition.
・ T he measuring function of this watch has not been designed to be used as a
special measuring instrument. Never use this watch for the following purposes.
○ Risky action and important situational judgment
※ U se a dedicated measuring instrument compatible with formal and offi cial standards for important measurements.
84
Contents
（1）How to perform pairing ...... 108
（2）How to cancel pairing ......... 109
communication ......... 110
Ⓡ
（2）How to set the time and calendar ... 113
（3）How to adjust the contrast ... 115
（4）How to set lighting time...... 116
（6） H ow to test the alarm sound and how to engage/disengage the hourly
time signal and confi rmation sound for button operations ... 118
（7）How to set in-fl ight mode ... 118
How to use the stopwatch mode ...... 119
（2）How to use the stopwatch ... 120
How to use the alarm mode ......... 121
（1）Buttons and functions ...... 121
（2）How to use the alarm ......... 122
WARNING
4．Sensor functions
（1）Buttons and functions ...... 125
（3）How to correct altitude ...... 126
（5）How to measure altitude again · ··127
（1）Buttons and functions ·············135
（2）Explanation of display · ··············136
（3） H ow to re-measure atmospheric
pressure and temperature ······137
How to use the compass mode ········138
CAUTIONS
To indicate the risks of light injuries or material damages unless the following safety
regulations are strictly observed.
・Avoid wearing or storing the watch in the following places.
○ P laces where volatile agents (cosmetics such as polish remover, bug repellent,
thinners etc.) are vaporizing
○ Places where the temperature drops below 5 ℃ or rises above 35 ℃ for a long time
○ Places of high humidity
○ Places aff ected by strong magnetism or static electricity
○ Dusty places
○ Places aff ected by strong vibrations
・If you observe any allergic symptoms or skin irritation
Stop wearing the watch immediately and consult a specialist such as a dermatologist or an allergist.
・Other cautions
○ R eplacement of the metal band requires professional knowledge and skill. Please ask
the retailer from whom the watch was purchased for replacement of the metal band,
as there is a risk of hand or fi nger injury and fear of losing parts.
○ Do not disassemble or tamper with the watch.
○ K eep the watch out of the reach of babies and children. Extra care should be taken to avoid
risks of any injury or allergic rash or itching that may be caused when they touch the watch.
○ W hen disposing of used batteries, follow the instructions of your local authorities.
○ I f your watch is of the fob or pendant type, the strap or chain attached to the watch
may damage your clothes, or injure the hand, neck, or other parts of your body.
（1）Buttons and functions ·············138
（2）How to measure direction · ······139
（4）Explanation of display · ··············140
(magnetic correction) · ··················142
5．To preserve the quality of your watch
Daily care .................................... 145
Water resistance ........................ 146
Performance and type .................. 148
Band ............................................. 149
Power source .............................. 151
After-sale service ........................ 153
6．Troubleshooting
Troubleshooting ........................... 156
How to reset the system ............ 160
7．Specifi cations
Specifi cations .............................. 161
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