Grand Seiko QUARTZ User Manual (English)

Questions and Answers:

L
Lisa FosterJul 29, 2025
Why is my Grand Seiko Watch gaining or losing time?
- C
  Chad SnyderJul 29, 2025
  If your Grand Seiko Watch is temporarily gaining or losing time, it might be due to a few reasons. First, check if the watch has been exposed to extremely high or low temperatures for an extended period. If so, allow the watch to return to a normal temperature, and then readjust the time. Normal accuracy should resume. Another cause could be close contact with a magnetic object. Distance the watch from the magnetic source to recover accuracy, then readjust the time. If neither of these resolves the issue, consider whether the watch has been dropped, subjected to active sports, hit against hard surfaces, or exposed to strong vibrations. In this case, readjust the time. If accuracy is still not recovered after these steps, it is best to consult the retailer from whom the watch was purchased.
K
Kristen EllisAug 3, 2025
What to do if the second hand on my Grand Seiko Watch moves at two-second intervals?
- T
  Tom MillerAug 4, 2025
  If the second hand on your Grand Seiko Watch is moving at two-second intervals, it typically indicates that the battery is nearing its end. In this case, it is recommended to consult the retailer from whom the watch was purchased to address the issue.
S
Stephanie HensleyAug 10, 2025
Why does the date change during daytime on my Grand Seiko Watch?
- J
  Jonathan MichaelAug 10, 2025
  If the date on your Grand Seiko Watch changes during the daytime, it's likely that the a.m./p.m. setting is not correctly configured. To resolve this, advance the hour hand by 12 hours and then reset the time and date accordingly.
C
Cynthia PorterAug 16, 2025
What to do if my Grand Seiko Watch stops operating?
- A
  Anthony PhillipsAug 16, 2025
  If your Grand Seiko Watch has stopped operating, it is likely that the battery has run down. It is recommended to consult the retailer from whom the watch was purchased.
C
Cheryl ReyesAug 22, 2025
What to do if blur in the display persists in Grand Seiko QUARTZ Watch?
- S
  Steven WardAug 22, 2025
  If you notice persistent blur in the display of your Grand Seiko Watch, it suggests that a small amount of water has entered the watch, possibly due to the deterioration of the gasket or other components. In this situation, it is recommended to consult the retailer from whom the watch was purchased.

Grand Seiko QUARTZ Specifications

General

Movement	Quartz
Accuracy	±10 seconds per year
Case Material	Stainless Steel
Water Resistance	100 meters
Crystal	Sapphire
Bracelet/Strap	Stainless Steel Bracelet
Case Diameter	40mm
Battery Life	Approximately 3 years
Functions	Date display, time display

Summary

Handling Cautions

Warning

Indicates risks of severe injury from improper handling.

Caution

Indicates risks of minor injury or material damage from improper handling.

Check Caliber Number and Water-Resistant Level

About the Caliber

Explains the 4-digit caliber number indicating the movement model.

About Water Resistance

Details water resistance levels and corresponding usage guidelines.

Cautions on Water Resistance

Caution: Do not operate crown/buttons when wet

Prevents water entry into the watch when wet.

Caution: Avoid moisture, sweat, and dirt

Prevents deterioration of water resistance due to rust or gasket aging.

Caution: Avoid use in baths or saunas

Prevents rapid deterioration of water resistance from steam and soap.

When Performance Display is "AIR DIVER'S"

Warning: No helium saturation diving

Prohibits use in saturation diving with helium gas.

Caution: Use with diving safety training and rules

Emphasizes the need for diving training and adherence to rules.

Precautions for Diving

Lists checks and precautions to take before diving.

Names of the Parts

9F83

Identifies parts of the 9F83 caliber watch.

9F82, 9F62, 4J52

Identifies parts of the 9F82, 9F62, 4J52 caliber watches.

How to Use

About the Crown

Explains the types of crowns and their operation.

About the Screw-Lock Crown

Details the operation and precautions for screw-lock crowns.

How to Use (For Cal. 9F83)

How to Set Time, Date, and Day

Step-by-step guide to setting time, date, and day for Cal. 9F83.

Date Adjustment at the End of the Month

Instantaneous Date/Day Change

Explains the quick change mechanism for date and day.

How to Use (For Cal. 9F82, 9F62)

How to Set Time and Date

Step-by-step guide to setting time and date for Cal. 9F82, 9F62.

How to Use (For Cal. 9F61, 4J51)

How to Set the Time

Step-by-step guide to setting the time for Cal. 9F61, 4J51.

How to Use (For Cal. 4J52)

How to Set Time and Date

Step-by-step guide to setting time and date for Cal. 4J52.

How to Use (For Cal. 8J55)

Independent Hour-Hand Adjustment

Explains how to adjust the hour hand for time zone changes.

How to Set the Time

Step-by-step guide to setting the time for Cal. 8J55.

Functions of Diver's Model

Unidirectional Rotating Bezel

Details the function and design of the unidirectional rotating bezel.

How to Use Rotating Bezel

Provides instructions on how to use the rotating bezel for time measurement.

Diver Adjuster

How to Use Diver Adjuster

Step-by-step guide to adjusting the bracelet length using the diver adjuster.

Things to Note

About After-Sales Service

Information on repair, maintenance, and customer service.

About Guarantee and Repair

Details warranty coverage, terms, and procedures.

About Periodic Inspection and Cleaning

Recommends periodic overhaul for maintaining watch performance.

Guarantee

Guarantee Coverage

Specifies the parts and conditions covered by the guarantee.

Exceptions from Guarantee

Lists situations not covered by the warranty.

Procedure for Free Repair

Outlines the steps to claim warranty repair services.

Daily Care

Perform daily care diligently

General guidance for daily watch maintenance.

Band

Metallic Band

Care instructions for metallic watch bands.

Leather Band

Care instructions for leather watch bands.

Polyurethane Band

Care instructions for polyurethane watch bands.

About Magnetic Resistance

Affected by Magnetism

Explains how magnetism affects watch timekeeping.

In Such Cases

What to Do

Provides solutions for common watch problems.

Product Specifications and Battery

Annual Loss/Gain

Details the annual accuracy rate of the watch.

Driving System

Identifies the watch's movement type.

Caliber Number

Lists watch calibers and their corresponding battery life.

Handling Cautions (Applicable to all models)

Warning: Stop wearing if...

Situations requiring immediate cessation of watch use due to potential hazards.

Keep away from children

Safety warning regarding keeping watches away from children.

Do not remove battery

Warning against self-battery removal due to potential damage.

Check Caliber Number and Water-Resistant Level

Water Resistance

Details water resistance performance and usage conditions.

Cautions on Water Resistance

Caution: Do not operate crown when wet

Warning against operating the crown while the watch is wet.

Avoid baths/saunas

Recommends avoiding baths and saunas while wearing the watch.

When Performance Display is "AIR DIVER'S"

Precautions for Diving

Lists essential checks and precautions before diving.

Names of the Parts

9F83

Identifies parts of the 9F83 caliber watch.

9F82, 9F62, 4J52

Identifies parts of the 9F82, 9F62, 4J52 caliber watches.

Names of the Parts

9F61 (Diver's models)

Identifies parts of the 9F61 diver's model watch.

How to Use

Crown

Explains the two types of crowns: normal and screw-lock.

Screw-lock Type Crown

Details the operation and features of a screw-lock crown.

How to Use (For Cal. 9F83)

Set Time, Date, and Day

Step-by-step instructions for setting time, date, and day.

How to Use (For Cal. 9F82, 9F62)

Set Time and Date

Step-by-step instructions for setting time and date.

How to Use (For Cal. 9F61, 4J51)

How to Set the Time

Step-by-step guide to setting the time.

How to Use (For Cal. 4J52)

How to Set Time and Date

Step-by-step instructions for setting time and date.

How to Use (For Cal. 8J55)

Independent Hour-Hand Adjustment

Explains how to adjust the hour hand for time differences.

How to Set the Time

Step-by-step instructions for setting the time.

Functions of Diver's Model

Unidirectional Rotating Bezel

Details the function and design of the unidirectional rotating bezel.

How to Use Rotating Bezel

Provides instructions on how to use the rotating bezel for time measurement.

Diver Adjuster

How to Use Diver Adjuster

Step-by-step guide to adjusting the bracelet length using the diver adjuster.

Preserving Watch Quality

After-Sales Service

Information on repair, maintenance, and customer service.

Guarantee

Details warranty coverage, terms, and procedures.

Guarantee

Guarantee Coverage

Specifies the parts and conditions covered by the guarantee.

Exceptions from Guarantee

Lists situations not covered by the warranty.

Procedure for Free Repair

Outlines the steps to claim warranty repair services.

Daily Care

Perform daily care diligently

General guidance for daily watch maintenance.

Band

Metallic Band

Care instructions for metallic watch bands.

Leather Band

Care instructions for leather watch bands.

Polyurethane Band

Care instructions for polyurethane watch bands.

About Magnetic Resistance

Affected by Magnetism

Explains how magnetism affects watch timekeeping.

Lumibrite

With Lumibrite

Information about the luminous paint and its properties.

Troubleshooting

Solutions

Provides solutions for common watch problems.

Specifications and Battery (Movement)

Annual Loss/Gain

Details the annual accuracy rate of the watch.

Driving System

Identifies the watch's movement type.

Caliber Number

Lists watch calibers and their corresponding battery life.

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