Seiko Astron 5X53 Complete User Manual
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Seiko Astron 5X53 Complete User Manual

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CONTENTS
Complete User Guide
5X53 GPS Solar Watch (Dual Time)

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Summary of Contents for Seiko Astron 5X53

  • Page 1 ▶ READ FIRST ▶ CONTENTS Complete User Guide 5X53 GPS Solar Watch (Dual Time)
  • Page 2 SEIKO CUSTOMER SERVICE CENTER. 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

    ○ If the pins protrude from the band. ○ Places where the temperature drops below ○ Places affected by strong vibrations * Immediately consult the retailer from whom the watch was purchased or SEIKO CUSTOMER 5°C or rises above 35°C for a long time (41°F SERVICE CENTER.
  • Page 4 Immediately consult the retailer from whom the watch was been conducted on the water resistant watch with the BAR (barometric pressure) purchased or SEIKO CUSTOMER SERVICE CENTER. display. For diving, use watches specifically designed for diving. Do not leave moisture, sweat and dirt on the watch for b CAUTION a long time.

  • Page 5: Features

    READ FIRST ASTRON 5X53 GPS SOLAR Features This is a GPS solar watch. * Unlike navigation equipment, this GPS solar watch is not designed to constantly receive GPS signals from GPS satellites without any operation. This watch receives GPS signals only in the time zone adjustment mode, automatic or manual time adjustment mode.

  • Page 6: Mechanism By Which The Gps Solar Watch Sets Time And Date

    READ FIRST ASTRON 5X53 GPS SOLAR Mechanism by which the GPS solar watch sets time and date GPS satellite Mechanism by which this watch sets the time and date This is a satellite operated by the United States Department of...

  • Page 7: Time Zone

    READ FIRST ASTRON 5X53 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. Standard time is determined by nations and regions, with “time zone” used to refer to the whole of a region that uses the same standard time. At present, the globe is divided into 39 time zones (as of March, 2018).

  • Page 8: The Following Functions Are Included

    READ FIRST ASTRON 5X53 GPS SOLAR The following functions are included When the region or time zone where the watch is used is changed To set only the time Adjust the time zone. The watch displays the precise time of the time zone that is set by operation of “manual time adjustment.”...

  • Page 9: How To Check When The Time Zone Information Was Configured For Your Watch

    READ FIRST ASTRON 5X53 GPS SOLAR How to check when the time zone information was configured for your watch By referring to caliber-case number shown on the case back, you will be able to determine when The case back shows the caliber-case number of the time zone data was configured.

  • Page 10: Table Of Contents

    CONTENTS ASTRON 5X53 GPS SOLAR CONTENTS 1.　READ FIRST 5.　IN CASE OF AN UNUSUAL MOVEMENT OF THE SECONDS HAND ........................2 ..33 Handling cautions ......................2 Seconds hand movement and watch state (energy depletion forewarning function) ..33 Features ......................... 4 6.　TO PRESERVE THE QUALITY OF YOUR WATCH...

  • Page 11: Before Use

    BEFORE USE ASTRON 5X53 GPS SOLAR Names of the parts 1 Hour hand 2 Indicator hand 3 Seconds hand 4 Sub-dial (12-hour system) 5 Minute hand 6 Button A 7 Day hand (day of the week) 8 Crown 9 Date...

  • Page 12: Indicator Hand Display And Reception Result Display

    BEFORE USE ASTRON 5X53 GPS SOLAR Indicator hand display and reception result display 1 Display of reception result 4 Display of charging status : Reception successful (8-second position) Hand : Reception failed (52-second position) full middle position → Check the reception result P.

  • Page 13: Time Zone Display And List Of Time Zones Around The World

    BEFORE USE ASTRON 5X53 GPS SOLAR Time zone display and list of time zones around the world The following list shows the relationship between displays of the bezel and dial ring and time difference from the UTC. Please refer to the seconds hand positions below to set the time zone or to check the time zone setting.

  • Page 14: Check The Charging Status

    BEFORE USE ASTRON 5X53 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 seconds hand shows the energy depletion state in further detail.

  • Page 15: About Charging

    BEFORE USE ASTRON 5X53 GPS SOLAR About charging How to charge the watch Standard Charging Time Expose the dial to light to charge the watch. Charge the watch using the times below as a guide. GPS signal reception consumes a lot of energy. It is necessary to charge the watch by exposing it to light so that the indicator hand points to the “middle”...

  • Page 16: 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 5X53 GPS SOLAR Basic operation flow 1. Check the place where GPS signals can be 2. Set the time zone and set the time and date easily received →...

  • Page 17: Gps Signal Reception

    BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.) ASTRON 5X53 GPS SOLAR GPS signal reception Place where GPS signals can be easily received/Place where GPS signals cannot be received Easy to receive Difficult to receive Cannot receive •...
  • Page 18 BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.) ASTRON 5X53 GPS SOLAR List of GPS signal reception methods (characteristics of all three types) GPS signal reception Q & A Reception Leap second data Q : When the watch is moved to a different time zone, does the watch automatically display the...
  • Page 19 BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.) ASTRON 5X53 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 20: To Adjust The Time Zone And Time By Gps Signal Reception (Time Zone Adjustment)

    BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.) ASTRON 5X53 GPS SOLAR To adjust the time zone and time by GPS signal reception (time zone adjustment) Time zone adjustment Precautions on time zone adjustment The time zone where you are is localized to adjust the watch to the precise If the time zone is adjusted near a time zone boundary, the time of the adjacent time zone current time by just one button operation anywhere in the world.
  • Page 21 BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.) ASTRON 5X53 GPS SOLAR How to adjust the time zone Continue to press Button B (3 seconds), Go to a place where GPS signals can Direct the watch face upward and...

  • Page 22: To Adjust Only The Time By Gps Signal Reception (Manual Time Adjustment)

    BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.) ASTRON 5X53 GPS SOLAR To adjust only the time by GPS signal reception (manual time adjustment) Manual time adjustment The watch can be set to the precise current time of the currently set time zone.
  • Page 23 BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.) ASTRON 5X53 GPS SOLAR How to manually adjust the time Continue to press Button A (3 seconds), Go to a place where GPS signals can Direct the watch face upward and...

  • Page 24: (Manual Time Zone Setting)

    BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.) ASTRON 5X53 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 of the sub-dial P.

  • Page 25: Set Dst (Daylight Saving Time)

    BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.) ASTRON 5X53 GPS SOLAR Set DST (Daylight Saving Time) → Set the DST (Daylight Saving Time) of the sub-dial. P. 27 Turn ON DST (Daylight Saving Time) * The indicator’s DST (Daylight Saving Time) is not changed to “AUTO (automatic)” if you have done the manual DST (Daylight Saving Time) can be manually set.
  • Page 26 BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.) ASTRON 5X53 GPS SOLAR Check the time zone and DST (Daylight Saving Time) settings The timezone and DST (Daylight Saving Time) can be checked for each of the main-dial and sub-dial.

  • Page 27: To Adjust Time On Sub-Dial

    BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.) ASTRON 5X53 GPS SOLAR To adjust time on sub-dial Manual time zone setting of the sub-dial Adjust the sub-dial by selecting the time of the time zone. * The sub-dial cannot be adjusted to a time outside the time zone.
  • Page 28 BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.) ASTRON 5X53 GPS SOLAR Set the DST (Daylight Saving Time) of the sub-dial. DST (Daylight Saving Time) can be manually set. * Normally, the indicator’s DST (Daylight Saving Time) is not changed to “AUTO (automatic)” if the sub-dial is adjusted via manual time zone selection. Turn DST (Daylight Saving Time) manually on or off, according to whether DST (Daylight Saving Time) is implemented or not.

  • Page 29: Switching Between The Main-Dial And Sub-Dial (Time Transfer Function)

    BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.) ASTRON 5X53 GPS SOLAR Switching between the main-dial and sub-dial (Time Transfer Function) Your watch can switch between its main-dial and sub-dial. Both the conditions for DST (Daylight Saving Time) set in the main-dial and the conditions for DST (Daylight Saving Time) set in the sub-dial switch.

  • Page 30: Automatic Time Adjustment

    BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.) ASTRON 5X53 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 31: When Boarding (In-Flight Mode ( ))

    BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.) ASTRON 5X53 GPS SOLAR When boarding (in-flight mode ( In-flight mode ( Set to the in-flight mode ( Set to the in-flight mode ( ) where the Continue to press Button B...

  • Page 32: Leap Second (Automatic Leap Second Reception Function)

    BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.) ASTRON 5X53 GPS SOLAR Leap second (Automatic leap second reception function) Leap second Receiving Leap Second Data The leap second is to compensate for deviations from the universal time (UT) which is Receiving the leap second data astronomically determined and the “International Atomic Time (TAI).
  • Page 33 BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.) ASTRON 5X53 GPS SOLAR Check whether leap second data reception was successful The reception result (success or failure) of the regular leap second data reception is displayed for 5 seconds.

  • Page 34: In Case Of An Unusual Movement Of The Seconds Hand

    IN CASE OF AN UNUSUAL MOVEMENT OF THE SECONDS HAND ASTRON 5X53 GPS SOLAR Seconds hand movement and watch state (energy depletion forewarning function) Movement of the seconds hand shows the state of the watch (working functions). 2-second interval movement/5-second interval movement are brought...

  • Page 35: To Preserve The Quality Of Your Watch

    TO PRESERVE THE QUALITY OF YOUR WATCH ASTRON 5X53 GPS SOLAR Daily care Performance and caliber / case number The case back shows the caliber and performance of your watch ● The watch requires good daily care • Do not wash the watch when its crown is in the extended position.

  • Page 36: Magnetic Resistance

    TO PRESERVE THE QUALITY OF YOUR WATCH ASTRON 5X53 GPS SOLAR Magnetic resistance Affected by nearby magnetism, Examples of common magnetic products that may affect watches a watch may temporarily gain or lose time or stop operating. * Even when the watch gains or loses time due to magnetic influence, the hand positions are automatically adjusted by the “automatic hand position adjustment function.”...

  • Page 37: Band

    TO PRESERVE THE QUALITY OF YOUR WATCH ASTRON 5X53 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.

  • Page 38: How To Use An Easy Adjust Type Clasp

    TO PRESERVE THE QUALITY OF YOUR WATCH ASTRON 5X53 GPS SOLAR How to use an easy adjust type clasp Some bands are provided with an easy adjust type clasp for fine adjustment of the band’s length. If the clasp of the watch you purchased is as follows, please refer to the following instructions.

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

    TO PRESERVE THE QUALITY OF YOUR WATCH ASTRON 5X53 GPS SOLAR How to use an adjustable three-fold clasp Some bands are provided with an adjustable three-fold clasp. If the clasp of the watch you purchased is as follows, please refer to the following instructions.

  • Page 40: How To Use An Adjustable Three-Fold Clasp (Pointed Tip Diving Type)

    TO PRESERVE THE QUALITY OF YOUR WATCH ASTRON 5X53 GPS SOLAR How to use an adjustable three-fold clasp (Pointed tip diving type) The rubber bands and some leather bands are provided with an adjustable three-fold clasp (Pointed tip diving type) of the type where the pointed tip of the band dives downward as shown in the figure.

  • Page 41: Lumibrite

    TO PRESERVE THE QUALITY OF YOUR WATCH ASTRON 5X53 GPS SOLAR Lumibrite If your watch has Lumibrite Lumibrite is a luminous paint that absorbs the light energy of sunlight and lighting apparatuses in a short time and stores it to emit light in the dark. For example, if exposed to a light of more than 500 lux for approximately 10 minutes, Lumibrite can emit light for 3 to 5 hours.

  • Page 42: Power Source

    TO PRESERVE THE QUALITY OF YOUR WATCH ASTRON 5X53 GPS SOLAR Power Source The battery used in this watch is a special secondary battery, which is different from * Overcharge prevention function ordinary batteries. When the secondary battery is fully charged, the overcharge prevention function is Unlike an ordinary silver oxide battery, the secondary battery does not require periodic automatically activated to avoid further charging.

  • Page 43: After Sales Service

    ● Notes on guarantee and repair ●Inspection and adjustment by disassembly and cleaning (Overhaul) • Contact the retailer from whom the watch was purchased or SEIKO CUSTOMER SERVICE • Periodic inspection and adjustment by disassembly and cleaning (overhaul) is recommended CENTER for repair or overhaul.

  • Page 44: Troubleshooting

    TROUBLESHOOTING ASTRON 5X53 GPS SOLAR When the watch is unable to receive GPS signals Points to be checked ●Reception is not possible even with operation of GPS signal reception (time zone adjustment/manual time adjustment) (The reception result is When the watch does not start receiving or is unable to receive GPS signals even with displayed as “N.”)
  • Page 45 TROUBLESHOOTING ASTRON 5X53 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 also be adjusted.

  • Page 46: When The Sub-Dial, Day Hand, Date, Indicator Hand Or Hour/Minute/Seconds Hand Position Is Misaligned

    TROUBLESHOOTING ASTRON 5X53 GPS SOLAR When the sub-dial, day hand, date, indicator hand or hour/minute/seconds 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 5X53 GPS SOLAR Preliminary position of this Adjust the preliminary position of the sub-dial, day hand, date, indicator hand, and hour/minute hands watch Pull out the crown to the second Continue to press Button B Turn the crown to adjust the sub-dial The preliminary position of the date is “1”...
  • Page 48 TROUBLESHOOTING ASTRON 5X53 GPS SOLAR Turn the crown to adjust the day hand Turn the crown to adjust the date to Press Button B and then release it Press Button B and then release it (a day of week) to “SUN (Sunday)”...
  • Page 49 TROUBLESHOOTING ASTRON 5X53 GPS SOLAR Continue to press Button A (3 Set the time by receiving GPS Press Button B and then release it Push the crown back in seconds) signals The watch goes into the preliminary position setting The hour/minute hands move, and stop at “12:00 AM”.

  • Page 50: Troubleshooting

    TROUBLESHOOTING ASTRON 5X53 GPS SOLAR Troubleshooting Troubleshooting Possible causes Solutions Reference pages The seconds hand moves at 2-second Charge the watch sufficiently until the seconds hand moves at 1- intervals. The energy depletion forewarning function is activated. second intervals and the indicator hand points to the “middle” position If the seconds hand moves at 2 or 5-second intervals while you wear the watch or “full”...
  • Page 51 TROUBLESHOOTING ASTRON 5X53 GPS SOLAR Troubleshooting Possible causes Solutions Reference pages The charging status has been displayed as “low” position. Charge the watch sufficiently until the charging status is displayed as the “middle” position or “full” position. middle P. 13...
  • Page 52 TROUBLESHOOTING ASTRON 5X53 GPS SOLAR Troubleshooting Possible causes Solutions Reference pages Sufficient energy is necessary to activate the automatic time adjustment function every day. Keep in The energy stored in the watch is insufficient. The automatic time adjustment mind to frequently expose your watch light to charge its battery. The automatic time adjustment is Conditions to activate the automatic time adjustment function are not P.
  • Page 53 TROUBLESHOOTING ASTRON 5X53 GPS SOLAR Troubleshooting Possible causes Solutions Reference pages Adjust the preliminary position of the day hand (a day of week) to the correct position “SUN (Sunday).” The preliminary position of the date is out of alignment. Misalignment of After the reception is successful, the P.

  • Page 54: Function List/Specifications

    FUNCTION LIST/SPECIFICATIONS ASTRON 5X53 GPS SOLAR Index Functions to adjust the time Functions to charge GPS signal reception → P. 16 Solar Charging Function..The watch converts light to electrical energy and charges Time zone adjustment This watch displays the precise local time, including DST →...

  • Page 55: Specifications

    → P. 31 Switch function for the main- Your watch can switch between the times of its main-dial dial and sub-dial..... and sub-dial. → P. 28 It can also switch DST. Copyright ©2019 by SEIKO WATCH CORPORATION...

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