Orient GNA User Manual

1
CHRONOGRAPH GNA (GN)
INSTRUCTION MANUAL
Thank you for your purchase of our product. To ensure prolonged use and optimum
performance, please read this Instruction Manual carefully and familiarize yourself
with the terms of the guarantee.
Please keep this Instruction Manual in your hand and refer in time of need.
◆ SAFETY PRECAUTIONS
Make absolutely sure to observe the demarcated contents indicated below to
prevent any possible physical danger and property damage to you as well as
other persons concerned.
… A demarcation with this symbol represents the contents
assuming possibility for death or serious injury when
the product is used in any manner different from given
instructions.
… A demarcation with this symbol represents the contents
assuming possibility of causing human injury or mate-
rial damage only when a product is used in any manner
different from given instructions.
◆ FEATURES
(1) This is an analogue crystal oscillator watch.
(2) It indicates the current time with a 24-hour hand, hour hand, minute hand and
second hand.
(3) In addition to time indicator, it has date and chronograph functions (one second
increments, up to 60 minutes).
WARNING
WARNING
CAUTIONCAUTION
ENGLISH

Orient GNA Specifications

General

Case Material	Stainless Steel
Band Material	Stainless Steel
Movement	Automatic (self-winding)
Power Reserve	Approximately 40 hours
Dial Color	Black
Clasp Type	Fold-over clasp with push-button release

Summary

SAFETY PRECAUTIONS

Warning Symbol Definition

Defines the warning symbol indicating potential death or serious injury from incorrect use.

Caution Symbol Definition

Defines the caution symbol indicating potential human injury or material damage from incorrect use.

FEATURES

Watch Features Description

Lists the key features of the analogue crystal oscillator watch, including time and chronograph functions.

SPECIFICATIONS

Technical Specifications List

Details the watch's technical specifications, including frequency, drive system, accuracy, and temperature range.

DISPLAY AND CROWN / BUTTON OPERATION

Operation Controls and Display

Illustrates the watch face and describes the functions of the crown and buttons for operation.

HOW TO SET THE TIME

Time Setting Procedure

Step-by-step instructions on how to set the correct time on the watch, including crown operation.

HOW TO SET THE DATE

Date Setting Procedure

Step-by-step instructions on how to set the correct date on the watch, including crown operation.

HOW TO USE THE CHRONOGRAPH

Standard Measurement

Explains how to perform standard time measurement using the chronograph function.

Accumulated Elapsed Time Measurement

Cumulative Time Measurement Steps

Details the procedure for measuring accumulated elapsed time with the chronograph.

OPERATING THE TACHYMETER

Tachymeter Operation Steps

Guides on how to operate the tachymeter to measure speed or production rate.

NOTES ON THE SCREW CROWN

How to Unlock the Crown

Instructions on how to unlock the screw-down crown for setting time or calendar.

How to Lock the Crown

Instructions on how to securely lock the screw-down crown after use.

MOVE THE CHRONOGRAPH HANDS TO “0” POSITION

Resetting Chronograph Hands

Procedure to move the chronograph second and minute hands to the '0' position, especially after battery replacement.

IN HANDLING THE WATCH

Water Resistance Guide

Table detailing water resistance levels and their suitability for various activities and conditions.

ABOUT THE BATTERY

Handling the Battery

Safety warnings and precautions for handling watch batteries, including keeping them away from children.

Battery Replacement

Instructions and cautions related to replacing the watch battery, emphasizing professional service.

Battery life

Battery Life Explanation

Information on the estimated battery life and factors affecting it, including monitor batteries.