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Seiko ASTRON 8X22 GPS SOLAR User Manual

Seiko ASTRON 8X22 GPS SOLAR
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8X22Astron GPS Solar World-Time
Complete User Guide
CONTENTSREAD FIRST

Table of Contents

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Seiko ASTRON 8X22 GPS SOLAR Specifications

General IconGeneral
TypeGPS Solar Watch
Caliber Number8X22
Case MaterialTitanium
Case Diameter44.6 mm
Band MaterialTitanium
Dial ColorBlack
Case Size44.6 mm
ModelASTRON
MovementQuartz
CrystalSapphire
Water Resistance10 bar (100 meters)
FunctionsWorld time, Alarm
FeaturesGPS, Solar

Summary

HANDLING CAUTIONS

WARNING

Immediate actions for serious risks and safety regulations.

CAUTIONS

Precautions for minor risks, material damage, and safety regulations.

Features

GPS Signal Reception

Describes how the watch receives GPS signals for time synchronization.

Solar Charging Function

Explains how the watch charges using solar power.

Automatic Time Adjustment

Explains automatic time updates based on GPS signals.

Mechanism of GPS Time Setting

What is GPS?

Explains the Global Positioning System.

GPS Satellite Description

Describes the GPS satellites used for positioning.

Watch Time Setting Mechanism

Explains how the watch uses GPS signals for time and date.

Time Zone Concepts

Time Zone, DST, and UTC Definitions

Explains time zones, Daylight Saving Time, and UTC.

Watch Functions Overview

Time Zone and Manual Time Setting

Describes key functions like time zone and manual time setting.

Watch Configuration Check

Caliber-Case Number Identification

Explains how to identify the watch model using the caliber-case number.

Names of the Parts

Watch Components Overview

Identifies key parts like hands, buttons, and crown.

Indicator Hand Displays

Reception and Status Indicators

Details on displays for reception, in-flight mode, charging, and DST.

Time Zone Information

Time Zone and Difference Listings

Provides lists of city codes and time differences from UTC.

Check the Charging Status

Charging Status Interpretation

Explains indicators for reception capability based on charge.

About Charging

Charging Methods and Times

Instructions on how to charge and standard charging durations.

Basic Operation Flow

Initial Setup and Time Synchronization

Guide to checking reception and setting time/date.

GPS Signal Reception Environment

Reception Location Guidelines

Describes places for easy, difficult, and no reception.

Time Zone Adjustment

Adjusting Time Zone and Precautions

Steps and important notes for time zone changes.

How to Adjust the Time Zone

Time Zone Adjustment Procedure

Detailed process for setting the watch's time zone.

Set DST (Daylight Saving Time)

DST Setting (ON/OFF)

Instructions to turn DST on or off.

Check Time Zone and DST Settings

Indicator Hand for Settings Check

How the indicator hand shows current settings.

In-flight Mode Operation

Activating and Deactivating In-flight Mode

Steps to enable and disable in-flight mode.

Manual Time Zone Setting

Manual Time Zone Adjustment Guide

Detailed steps for manual time zone configuration.

Manual Time Adjustment

Manual Time Setting Procedure

Steps for precise manual time adjustment.

How to Manually Adjust the Time

Manual Time Adjustment Procedure

Detailed process for manually setting the watch's time.

Automatic Time Adjustment

Automatic Time Update Process

Explanation of the automatic time adjustment feature.

GPS Signal Reception

Reception Types and FAQs

Overview of reception methods and common questions.

Leap Second Functionality

Leap Second Data Reception

How the watch handles leap seconds.

Reception Success Check

Verifying Reception Results

Steps to check if GPS reception was successful.

Leap Second Reception Check

Verifying Leap Second Reception

Steps to check leap second data reception results.

Second Hand Movement Indicators

Energy Depletion Forewarning

How second hand movement indicates low power.

Power Save Function Modes

Power Save 1 and Power Save 2 Operations

Explains the two power save modes.

Daily Care and Maintenance

Watch Upkeep Tips

Includes advice on cleaning, crown, and button care.

Watch Performance and Identification

Water Resistance, Magnetic Resistance, and Caliber/Case Number

Explains key performance metrics and model identification.

Water Resistance Specifications

Water Resistance Rating

Explains the meaning of the water resistance indication.

Magnetic Resistance

Magnetic Interference Sources

Lists common items that can affect magnetism.

Band Care and Materials

Adjustable Three-Fold Clasp Operation

Clasp Usage and Adjustment

Instructions for wearing, removing, and adjusting the clasp.

Lumibrite

Lumibrite Description

Explanation of the luminous paint feature.

Power Source and Battery Information

Battery Care and Charging Precautions

Information on the secondary battery and safe charging practices.

After-Sale Service Information

Guarantee, Repair, and Overhaul Services

Information regarding warranty coverage, repair requests, and periodic maintenance.

Troubleshooting: Unable to Receive GPS Signals

GPS Signal Reception Troubleshooting

Checks and manual time setting for reception problems.

How to Manually Set the Time

Manual Time Setting Procedure

Detailed instructions for adjusting the watch time manually.

Hand and Date Position Misalignment

Correcting Misaligned Hands and Date

Steps for automatic and manual position adjustments.

Adjusting Preliminary Hand and Date Positions

Manual Preliminary Position Adjustment

Step-by-step instructions for setting initial positions.

Light Detection Setting

Enabling and Disabling Light Detection

Instructions for turning the feature on or off.

General Troubleshooting

Hand Movement Issues

Addresses problems related to the second hand's movement.

Troubleshooting

GPS Signal Reception Issues

Solutions for problems with receiving GPS signals.

Troubleshooting

Time and Hand Misalignment Issues

Solutions for time gain/loss and hand misalignment.

Troubleshooting

Solar Battery Charging and Date Misalignment

Solutions for charging issues and incorrect dates.

Troubleshooting

Indicator Hand, Operation, and Other Issues

Addresses indicator hand, operational, and other minor problems.

Functions to Adjust the Time

Time Adjustment Features

Details on GPS reception, time zone, manual, automatic, and DST settings.

Functions to Charge the Watch

Charging and Power Management Features

Details on solar charging, status, and power saving.

GPS Reception Functions

Reception Modes and Status Displays

Covers in-flight mode, satellite status, results, and time zone checks.

Other Watch Functions

Hand Alignment and Leap Second Reception

Explains automatic hand correction and leap second data handling.

SPECIFICATIONS

Technical Specifications Summary

Lists all technical specifications including basic function, oscillator, accuracy, temperature, power, and GPS.

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