Seiko ASTRON User Manual
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Seiko ASTRON User Manual

7x52 gps solar watch
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See also: Complete User's Manual , Basic Owner's Manual
READ FIRST
CONTENTS
Complete User Guide
7X52 GPS SOLAR WATCH

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Summary of Contents for Seiko ASTRON

  • Page 1 READ FIRST CONTENTS Complete User Guide 7X52 GPS SOLAR WATCH...
  • Page 2 SEIKO WORLDWIDE SERVICE NETWORK. The service may also be available on a chargeable basis at other retailers, however, some retailers may not undertake the service.

  • Page 3: Read First

    READ FIRST ASTRON 7X52 GPS SOLAR HANDLING CAUTIONS CAUTIONS WARNING To indicate the risks of serious consequences such as severe injuries To indicate the risks of light injuries or material damages unless the unless the following safety regulations are strictly observed.
  • Page 4 Immediately been conducted on the water-resistant watch with the consult the retailer from whom the watch was purchased or SEIKO BAR (barometric pressure) display. For diving, use special WORLDWIDE SERVICE NETWORK.
  • Page 5 READ FIRST ASTRON 7X52 GPS SOLAR Features This is a GPS* solar watch.  GPS is an abbreviation for Global Positioning System. This watch has the following features.  For details, see P. 27 This watch can be set to the precise local time This watch operates by solar charging.
  • Page 6 READ FIRST ASTRON 7X52 GPS SOLAR The following functions are included When the region or time zone where the watch is used is To set only the time changed The watch displays the precise time of the time zone that is set by operation of “manual time adjustment.”...

  • Page 7: Table Of Contents

    CONTENTS ASTRON 7X52 GPS SOLAR CONTENTS 1. READ FIRST …………………………………………………………………… 5. DETAILED INFORMATION …………………………………………………… 27 Mechanism by which the GPS watch sets time and date …………… 27 2. CONTENTS ……………………………………………………………………… Time zone …………………………………………………………………… 28 3. BEFORE USE …………………………………………………………………… GPS signal reception ……………………………………………………… 29 Names of the parts …………………………………………………………...

  • Page 8: Before Use

    BEFORE USE ASTRON 7X52 GPS SOLAR Names of the parts Main-Dial Button B Hour hand Minute hand Second hand Date Button A Crown (Screw lock type) Indicator hand  P . 34  P . 8  Keep the crown locked while you are wearing the watch.

  • Page 9: Indicator Hand Display And Reception Result Display

    BEFORE USE ASTRON 7X52 GPS SOLAR Indicator hand display and reception result display Display of charging status Display of receiving process Receiving 1 (time 4+ (time zone Receiving leap Hand Level position F (full) E (low) process adjustment) adjustment) second data...

  • Page 10: Time Zone Display And List Of Time Zones Around The World

    BEFORE USE ASTRON 7X52 GPS SOLAR Time zone display and list of time zones around the world The following lists show the relationship between displays of the bezel and dial ring and time difference from the UTC. Please refer to the second hand positions below to set the time zone or to check the time zone setting.

  • Page 11: Check The Charging Status

    BEFORE USE ASTRON 7X52 GPS SOLAR Check the charging status The indicator hand position shows whether this watch is able or unable to receive GPS signals. In addition, for the low charging state, the movement of the second hand shows the energy depletion state in further detail.

  • Page 12: About Charging

    BEFORE USE ASTRON 7X52 GPS SOLAR About charging How to charge the watch Standard Charging Time Expose the dial to light to charge the watch. For an approximate time required to charge the watch, refer to the table below. GPS signal reception consumes a lot of energy. Keep in mind to charge the watch by expose to light so that the indicator hand points to the “level...

  • Page 13: Basic Operation (How To Set The Time/How To Receive Gps Signals, Etc.)

    BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.) ASTRON 7X52 GPS SOLAR Basic operation flow 1. Check the place where GPS 2. Set the time zone and set the time and date signals can be easily received <...

  • Page 14: Place Where Gps Signals Can Be Easily Received/Cannot Be Received

    BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.) ASTRON 7X52 GPS SOLAR Place where GPS signals can be easily received/Place where GPS signals cannot be received There are places where GPS signals can be easily received and places where GPS signals cannot be received.

  • Page 15: Time Zone Adjustment

    BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.) ASTRON 7X52 GPS SOLAR When the region or time zone where the watch is used is changed (Time Zone Adjustment) Time zone adjustment The time zone where you are is localized to adjust the watch to the precise current time by receiving GPS signals.
  • Page 16 BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.) ASTRON 7X52 GPS SOLAR How to adjust the time zone Go to a place where Continue to press Button B (6 seconds), When the second hand points GPS signals can be...

  • Page 17: Check The Time Zone Setting

    BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.) ASTRON 7X52 GPS SOLAR Check the time zone setting. The currently set time zone is displayed for 5 seconds. Press Button C once and Check the time zone setting (within 5...
  • Page 18 BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.) ASTRON 7X52 GPS SOLAR Check Daylight Saving Time (DST) setting Daylight Saving Time (DST) Daylight Saving Time (DST) setting is displayed for 5 seconds. Depending on the area, Daylight Saving Time (DST) is individually set.

  • Page 19: Set Daylight Saving Time (Dst)

    BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.) ASTRON 7X52 GPS SOLAR Set Daylight Saving Time (DST)  Daylight Saving Time (DST) is not automatically changed. Turn ON Daylight Saving Time (DST)  ON/OFF of the DST is not automatically changed over even with operation of time zone adjustment/manual time zone setting.

  • Page 20: In-Flight Mode ( ) (When Boarding)

    BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.) ASTRON 7X52 GPS SOLAR When boarding (in-flight mode ( )) In-flight mode ( ) Set to the in-flight mode ( ). Set to the in-flight mode ( ) Start operation of 2 within 5 seconds after operation of 1.

  • Page 21: Manual Time Zone Setting (To Set The Watch To The Local Time Of The Destination In An Airplane, Etc. )

    BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.) ASTRON 7X52 GPS SOLAR To set the watch to the local time of the destination in an airplane, etc. (Manual time zone setting) Manual time zone setting In places where the time zone cannot be adjusted, the time zone can be set manually.

  • Page 22: Manual Time Adjustment (To Set Only The Time)

    BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.) ASTRON 7X52 GPS SOLAR To set only the time (manual time adjustment) Manual time adjustment The watch can be set to the precise current time of the currently set time zone.

  • Page 23: To Manually Adjust The Time

    BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.) ASTRON 7X52 GPS SOLAR How to manually adjust the time Go to a place where Continue to press Button B (3 seconds), When the second hand points Direct the watch face...

  • Page 24: Automatic Time Adjustment

    BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.) ASTRON 7X52 GPS SOLAR Automatic time adjustment This watch can be set to the precise current time by automatically receiving GPS signals by exposure to bright light outdoors under an open sky to adjust the time.

  • Page 25: Reception Result Display (Check That Reception Was Successful)

    BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.) ASTRON 7X52 GPS SOLAR Check that reception was successful (reception result display) The type of reception and reception result (success or failure) of the last GPS signal reception is displayed for 5 seconds.

  • Page 26: Dual Time Display

    BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.) ASTRON 7X52 GPS SOLAR Dual time display Respective times of two regions can be displayed by the dial and sub-dial. Example: Honolulu time and Japan time are respectively displayed by the dial and sub-dial.

  • Page 27: How To Set The Sub-Dial

    BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.) ASTRON 7X52 GPS SOLAR How to set the sub-dial • The sub-dial displays the time in a Pull out the crown to Press Button B or Button C 24-hour system.

  • Page 28: Detailed Information

    DETAILED INFORMATION ASTRON 7X52 GPS SOLAR Mechanism by which the GPS watch sets time and date What GPS is Mechanism by which this watch sets the time and date GPS stands for Global Positioning System, a satellite positioning system for determining the current position on the earth.

  • Page 29: Time Zone

    DETAILED INFORMATION ASTRON 7X52 GPS SOLAR Time zone Time zone Based on Coordinated Universal Time (UTC), the standard time commonly used is adopted by countries and regions around the world. The standard time is determined by each country or region, and the region where the same standard time is adopted is referred to as the time zone, and presently, the time zone is divided into 39 zones.

  • Page 30: Gps Signal Reception

    DETAILED INFORMATION ASTRON 7X52 GPS SOLAR GPS signal reception GPS signal reception includes three types. Features for each type are as follows. GPS signal reception Q & A Reception Leap second data Q: When the watch is moved to a different time zone, does the...

  • Page 31: Leap Second (Automatic Leap Second Reception Function)

    DETAILED INFORMATION ASTRON 7X52 GPS SOLAR Leap second (Automatic leap second reception function) Leap second Reception of leap second data The leap second is to The indicator hand displays as shown at the right when GPS signals are received (time...

  • Page 32: In Case Of An Unusual Movement Of The Second Hand

    IN CASE OF AN UNUSUAL MOVEMENT OF THE SECOND HAND ASTRON 7X52 GPS SOLAR Second hand movement and watch state (energy depletion forewarning function) Movement of the second hand shows the state of the watch (working functions). 2-second interval movement/5-second interval movement are brought about When the energy stored in the watch runs low, the energy depletion forewarning function will work.
  • Page 33 IN CASE OF AN UNUSUAL MOVEMENT OF THE SECOND HAND ASTRON 7X52 GPS SOLAR The second hand stops at the 15-second position/45- The second hand stops at the 0-second or second position (Power save function) 5-second position (automatic time adjustment) When the watch is not exposed to light for a long time, the power save function will work.

  • Page 34: To Preserve The Quality Of Your Watch

    TO PRESERVE THE QUALITY OF YOUR WATCH ASTRON 7X52 GPS SOLAR Daily care Performance and caliber / case number The case back shows the performance and ● The watch requires good daily care caliber / case number of your watch •...

  • Page 35: Screw-Lock Type Crown

    TO PRESERVE THE QUALITY OF YOUR WATCH ASTRON 7X52 GPS SOLAR Screw-lock type crown The screw-lock type crown features a mechanism that can securely lock the crown when they are not being operated in order to prevent any operational errors and to improve its water resistant property.

  • Page 36: Water Resistance

    TO PRESERVE THE QUALITY OF YOUR WATCH ASTRON 7X52 GPS SOLAR Water resistance Refer to the table below for the description of each degree of water resistant performance of your watch before using. Indication on the case back Water resistant performance...

  • Page 37: Magnetic Resistance (Magnetic Influence)

    TO PRESERVE THE QUALITY OF YOUR WATCH ASTRON 7X52 GPS SOLAR Magnetic resistance (Magnetic influence) Examples of common magnetic products that may affect watches This watch may be affected by nearby magnetism and temporarily gain or lose time or stop operating.

  • Page 38: Band

    TO PRESERVE THE QUALITY OF YOUR WATCH ASTRON 7X52 GPS SOLAR Band The band touches the skin directly and becomes dirty with sweat or dust. Therefore, lack of care may accelerate deterioration of the band or cause skin irritation or stain on the sleeve edge. The watch requires a lot of attention for long usage.

  • Page 39: How To Use An Adjustable Three-Fold Clasp

    TO PRESERVE THE QUALITY OF YOUR WATCH ASTRON 7X52 GPS SOLAR How to use an adjustable three-fold clasp ● How to adjust the length of the leather band Some bands are provided with an adjustable three-fold clasp. With pressing buttons on both...

  • Page 40: Lumibrite

    TO PRESERVE THE QUALITY OF YOUR WATCH ASTRON 7X52 GPS SOLAR Lumibrite If your watch has Lumibrite Lumibrite is a luminous paint that is completely harmless to human beings and natural environment, containing no noxious materials such as radioactive substance. Lumibrite is a newly-developed luminous paint that absorbs the light energy of the sunlight and lighting apparatus in a short time and stores it to emit light in the dark.

  • Page 41: Power Source

    TO PRESERVE THE QUALITY OF YOUR WATCH ASTRON 7X52 GPS SOLAR Power Source The battery used in this watch is a special secondary battery,  Overcharge prevention function which is different from ordinary batteries. Unlike an ordinary silver When the secondary battery is fully charged, the overcharge...

  • Page 42: After-Sale Service

    (overhaul). For replacement of parts, • SEIKO makes it a policy to typically keep a stock of replacement please specify “SEIKO GENUINE PARTS. ” When asking for inspection parts for this watch for 7 years.

  • Page 43: Troubleshooting

    TROUBLESHOOTING ASTRON 7X52 GPS SOLAR When the watch is unable to receive GPS signals ● The second hand stops at the 45-second position before the reception is Points to be checked completed (The watch enters the power save 2 state) When the watch does not start receiving or is unable to receive GPS •...
  • Page 44 TROUBLESHOOTING ASTRON 7X52 GPS SOLAR How to manually set the time • When using the watch again under a condition in which the watch is able to receive GPS signals, receive GPS signals to set the time. • When adjusting the time, the date will be accordingly adjusted.
  • Page 45 TROUBLESHOOTING ASTRON 7X52 GPS SOLAR How to manually set the date When the date is not automatically changed under a condition in which the watch is unable to receive GPS signals (when changing from months with 30 Pull out the crown to the...

  • Page 46: When The Time/Date Or Indicator Hand Position Is Misaligned

    TROUBLESHOOTING ASTRON 7X52 GPS SOLAR When the time/date or indicator hand position is misaligned The preliminary position is misaligned due to the following reasons. Points to be checked ● Reception was successful (the reception result is displayed as “Y”), but time has gained or lost.
  • Page 47 TROUBLESHOOTING ASTRON 7X52 GPS SOLAR Preliminary position of Adjust the preliminary position of the date, indicator hand, and hour/minute hands this watch Continue to press Button B and C Continue to press Button A (2 seconds) Press Button B or C to...
  • Page 48 TROUBLESHOOTING ASTRON 7X52 GPS SOLAR Continue to press Button A (2 seconds) Press Button B or C to adjust the Press Button B once and then When operation is completed, and release it when the second hand indicator hand as shown in the figure...

  • Page 49: In Case Of An Abnormal Movement (Resetting The Built-In Ic)

    TROUBLESHOOTING ASTRON 7X52 GPS SOLAR In case of an abnormal movement (resetting the built-in IC) In the case that the watch Reset the system (2 ~ 4) moves abnormally or that Continue to press Button A and C the watch does not move at...
  • Page 50 TROUBLESHOOTING ASTRON 7X52 GPS SOLAR Set the date to “1” (1st) (5, 6) Set the indicator hand to “E” (7 ~ 9)  If the date is stopped continuously for 1 minute or longer, the watch automatically returns to the time display mode. When the watch has returned to the time display mode, restart operation.
  • Page 51 TROUBLESHOOTING ASTRON 7X52 GPS SOLAR Set the time (0) When operation is After operation of 1 to 9 is Press Button B or C to adjust the Set the time by completed, press Button A completed, make sure to set the...

  • Page 52: Troubleshooting

    TROUBLESHOOTING ASTRON 7X52 GPS SOLAR Troubleshooting Reference At trouble Possible causes Solutions pages The second hand moves Charge the watch sufficiently until the second hand The energy depletion forewarning function is activated. (P . at 2-second intervals. moves at 1-second intervals and the indicator hand...
  • Page 53 TROUBLESHOOTING ASTRON 7X52 GPS SOLAR Reference At trouble Possible causes Solutions pages The charging status has been Charge the watch sufficiently until the charging status is level position P . 11 Reception is not started displayed as “E (low). ”...
  • Page 54 TROUBLESHOOTING ASTRON 7X52 GPS SOLAR Reference At trouble Possible causes Solutions pages 1 The automatic hand position alignment function is activated to automatically adjust the The position of the second position. Please use the watch as it is. The automatic hand position alignment function is hand showing “reception...
  • Page 55 TROUBLESHOOTING ASTRON 7X52 GPS SOLAR Reference At trouble Possible causes Solutions pages The stopped watch The time required for charging the watch depends entirely on the amount of exposed light the The amount of exposed light is too weak. P . 11 was exposed to an watch receives.
  • Page 56 TROUBLESHOOTING ASTRON 7X52 GPS SOLAR Reference At trouble Possible causes Solutions pages The automatic leap second reception function has been activated. It takes up to 18 minutes to complete the leap second reception. P . 30 (The second hand is stopped between Use the watch with reference to the “Place where GPS signals can be easily received P .

  • Page 57: Function List/Specifications

    FUNCTION LIST/SPECIFICATIONS ASTRON 7X52 GPS SOLAR Index Functions to adjust the time GPS signal reception  P. 29 Solar Charging Function ………………… A solar cell underneath the dial converts any form  P . 11 of light into electrical energy to power the watch and the power is stored in a secondary battery.

  • Page 58: Specifications

    9. IC (Integrated Circuit) …………… Oscillator, frequency divider and driving circuit C-MOS- IC, 4 pieces  The specifications are subject to change without prior notice for product improvement. Declaration of Conformity Copyright ©2012 by SEIKO WATCH CORPORATION...

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