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Citizen H864 User Manual

Citizen H864
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H864 Instruction manual
Thank you for your purchase of this Citizen watch.
Before using the watch, read this instruction manual (PDF) carefully to ensure correct use.
Caliber No. of this watch:
H864
You can access the web instruction manual in addition by using the QR code or the URL:
https://www.citizenwatch-global.com/support/html/en/h864/h864.html
Some models may be equipped with enhanced features functions such as slide rules and tachymeters. To see how to use such features and functions, which is
not covered with the instruction manual, and other information, access the CITIZEN support page (
https://www.citizenwatch-global.com/support/
).
ENGLISH
Safety precautions — IMPORTANT
This manual contains instructions that should be strictly followed at all times
not only for optimal use, but to prevent any injuries to yourself, other persons or
property. We encourage you to read the entire booklet (especially, pages
9
and
10
) and understand the meaning of the following symbols:
Safety advisories are categorized and depicted in this manual as follows:
DANGER
Highly likely to cause death or serious injury
WARNING
Can cause serious injury or death
CAUTION
Can or will cause minor or moderate injury or damage
Important instructions are categorized and depicted in this manual as follows:
(Following symbols are examples of Pictograms.)
Warning (caution) symbol followed by prohibited matters.
Warning (caution) symbol followed by instructions that should be followed or
precautions that should be observed.
Features
Radio controlled watch
Receives time signals from one of the five signal stations in four regions in
the world and automatically adjusts the time and calendar.
Eco-Drive
No periodical battery replacement is needed. This watch is fueled by light.
World time
Indicates the time around the world by choosing one of 26 time zones.
UTC indication
The arrow on the Northern hemisphere dial always indicates UTC
(Coordinated Universal Time).
Perpetual calendar
No need for monthly and leap-year date correction until February 28, 2100.
“Eco-Drive” is an original technology of Citizen.
CONTENTS
Before using this watch ........................................................... 2
Band adjustment .................................................................................... 2
Protective stickers ..................................................................................2
How to use a specially designed crown/button ........................................2
Component identification ....................................................... 2
Checking the power reserve .................................................... 3
World time ............................................................................. 3
Checking the time zone setting ...............................................................3
Changing the time zone setting ..............................................................3
Summer time.......................................................................... 4
Checking the summer time setting .........................................................4
Changing the summer time setting .........................................................4
Receiving the time signal ........................................................ 5
Checking the previous signal reception result .........................................5
Receiving the time signal manually ........................................................5
About signal reception ............................................................ 5
Types of signal reception ........................................................................5
When receiving the time signal...............................................................5
Poor reception areas ...............................................................................5
Note on the time signal ..........................................................................5
Adjusting the time and calendar manually .............................. 6
Charging your watch ............................................................... 7
When the watch reaches a low charge state
(insufficient charge warning function) .................................................7
Charging time by environment ...............................................................7
Power save function ...............................................................................7
Troubleshooting ..................................................................... 7
Checking and correcting the reference position ....................... 8
Resetting the watch - All Reset ...............................................................8
Eco-Drive watch handling precautions ..................................... 9
Water resistance ..................................................................... 9
Precautionary items and usage limitations .............................. 9
Specifications ........................................................................10

Questions and Answers:

Citizen H864 Specifications

General IconGeneral
ModelH864
Case MaterialStainless Steel
Band MaterialStainless Steel
Water Resistance100 meters
FunctionsChronograph
Dial ColorBlack

Summary

Safety Precautions

Safety Advisories

Explains safety advisories categorized by DANGER, WARNING, and CAUTION symbols.

Pictogram Symbols

Illustrates warning symbols for prohibited matters and required precautions.

Watch Features

Radio Controlled Watch

Receives time signals from global stations to automatically adjust time and calendar.

Eco-Drive

Powered by light, eliminating the need for periodical battery replacement.

World Time

Displays time around the world by selecting one of 26 time zones.

UTC Indication

The northern hemisphere dial arrow indicates UTC (Coordinated Universal Time).

Perpetual Calendar

Automatically corrects date and leap year until February 28, 2100.

Initial Setup and Component Overview

Before Using This Watch: Key Steps

Outlines essential steps before watch use: checking power, setting time zone, and signal reception.

Component Identification

Details the watch's parts: hands, buttons, dial indicators, and northern hemisphere dial.

Crown and Button Operation

Explains how to operate screw-down crowns/buttons and recessed buttons.

Band and Sticker Care

Provides guidance on band adjustment and removal of protective stickers.

Power Reserve and World Time Functions

Checking Power Reserve

Details how to check the watch's remaining power reserve using the function hand.

World Time: Time Zone Settings

Explains how to check and change the watch's time zone setting for world time.

Time Zone Correspondence Table

Lists time zones, UTC offsets, and corresponding second hand positions for setting.

Summer Time Settings

About Summer Time

Explains summer time as a system and its variations by country or area.

Summer Time Setting Options

Covers automatic/manual switching and setting choices for summer time.

Checking and Changing Summer Time

Guides on how to check and change the summer time setting on the watch.

North America/Europe Summer Time

Details summer time signal reception for North America and Europe time zones.

Time Signal Reception

Checking Reception Results

How to check the success or failure of the last time signal reception.

Manual Signal Reception

Procedure for manually initiating time signal reception and canceling it.

Signal Reception Details

Explains automatic, manual, and recovery reception types and optimal placement.

Reception Environment and Stations

Discusses poor reception areas, environmental factors, and signal station locations.

Manual Time and Calendar Adjustment

Manual Time Adjustment Procedure

Step-by-step guide to manually adjust time, date, day of week, and 24-hour hand.

Setting Year and Month

Details how to set the year and month using the second hand and a reference table.

Watch Charging and Power Management

Charging Your Watch

Instructions on how to charge the watch using light and precautions during charging.

Low Charge and Power Save Functions

Explains the insufficient charge warning and power save features.

Charging Time Estimates

Provides estimated charging times based on different light environments.

Troubleshooting Guide

Signal Reception Issues

Addresses problems with receiving time signals and suggests remedies.

Hand Movement Anomalies

Covers issues like hands moving every two seconds or not moving at all.

Time and Calendar Errors

Provides solutions for incorrect time or calendar display and summer time setting problems.

Reference Position Adjustment

Understanding Reference Positions

Defines reference positions and shows correct/incorrect examples for hands and indicators.

Correcting Reference Positions

Step-by-step instructions to check and correct the watch's reference positions.

Full Watch Reset (All Reset)

Performing an All Reset

Procedure to reset all settings to factory defaults, including initial setup steps.

Eco-Drive Handling and Precautions

Recharging Requirements

Emphasizes frequent recharging, avoiding high temperatures, and cell replacement.

Rechargeable Cell Handling

Safety guidelines for handling, disposal, and using only the specified rechargeable cell.

Water Resistance Guide

Water Resistance Indications

Explains water resistance ratings and their corresponding usage limitations.

Water Resistance Chart

Details water-related uses for different resistance levels (non-resistant to 20 bar).

General Precautions and Usage Limitations

Injury Prevention

Advises caution during activities, in saunas, and when wearing or removing the watch.

Watch Care and Handling

Covers precautions for wet conditions, magnetism, shock, static electricity, and chemicals.

Wearing Your Watch

Guidance on band care, fit, and avoiding stains or deterioration from external factors.

Watch Cleaning and Maintenance

Keeping Your Watch Clean

Instructions for cleaning the watch case, band, and buttons to prevent sticking and irritation.

Caring for Different Bands

Methods for cleaning metal, leather, and rubber bands, and storing the watch properly.

Luminous Paint Usage

Information on the luminous paint for dial and hands, its function, and limitations.

Specifications

Model and Type

Specifies the watch model (H864) and its type (Analog solar-powered watch).

Timekeeping Accuracy and Operating Range

Details monthly accuracy and the watch's operating temperature range.

Display Functions and Duration

Lists display capabilities and the duration the watch runs on a full charge.

Battery and Additional Functions

Covers battery type, power functions, and additional features like signal reception.

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