How To Set Time On Omega Seamaster

by Barbara Wilson

Omega Seamaster watches are renowned for their precision, elegance, and durability. As one of the most iconic lines from the esteemed Swiss watchmaker Omega, the Seamaster series combines advanced technology with sophisticated design, making it a favorite among watch enthusiasts and professionals alike. Setting the time on an Omega Seamaster is a fundamental skill every owner should master to ensure the watch remains accurate and reliable.


This article will provide a comprehensive, step-by-step guide on how to set the time on various models of the Omega Seamaster, including manual and automatic versions. Whether you are a new owner or a seasoned collector, this guide will help you understand the intricacies of your watch and keep it functioning perfectly.


Understanding the Omega Seamaster Series

The Legacy of the Omega Seamaster

The Omega Seamaster series has a rich history dating back to 1948. Initially introduced as a robust, water-resistant watch for the British military, it quickly gained popularity for its reliability and versatility. Over the decades, the Seamaster line has evolved, incorporating innovative features and technologies while maintaining its classic appeal.


Key Features of the Omega Seamaster

The Omega Seamaster is known for several distinctive features:


Water Resistance: Most models are water-resistant up to 300 meters or more, making them suitable for diving and other water activities.

Helium Escape Valve: Found in professional models, this feature allows helium to escape during decompression, preventing damage to the watch.

Co-Axial Movement: Omega’s proprietary co-axial escapement reduces friction and enhances the watch’s precision and longevity.

Design: The Seamaster combines sporty aesthetics with luxurious materials, making it a versatile choice for various occasions.

Tools and Precautions

Necessary Tools

To set the time on your Omega Seamaster, you generally won’t need any specialized tools. However, having the following items on hand can be helpful:

A clean, soft cloth to protect the watch and prevent scratches.

A watch winder for automatic models to keep the movement running smoothly when not in use.


Before setting the time, consider these important precautions:

Read the Manual: Refer to the specific manual for your Omega Seamaster model, as there may be variations in the setting process.

Avoid Setting During Certain Times: For models with a date function, avoid setting the time between 8 PM and 4 AM, as the date-changing mechanism might be engaged, leading to potential damage.

Handle with Care: Be gentle when handling the crown and other components to prevent any mechanical issues.

Step-by-Step Guide to Setting the Time

Identifying the Crown Positions

The crown, typically located at the 3 o’clock position, is the primary control for setting the time. It has multiple positions, which may vary slightly depending on the model:

Position 0: Crown fully pushed in. The watch is running, and the crown is locked.

Position 1: Crown pulled out to the first click. This position is usually for setting the date.

Position 2: Crown pulled out to the second click. This is for setting the time.

Setting the Time on an Omega Seamaster Automatic

Unscrew the Crown: For models with a screw-down crown, gently unscrew it counterclockwise until it pops out to Position 0.

Pull the Crown to Position 2: Carefully pull the crown out to the second click (Position 2). You might feel a slight resistance.

Set the Time: Turn the crown clockwise or counterclockwise to set the correct time. Ensure that the minute and hour hands are precisely aligned.

Push the Crown Back In: Once the time is set, push the crown back to Position 0.

Screw Down the Crown: For screw-down crowns, screw the crown back in clockwise until it is secure and watertight.

Setting the Time on an Omega Seamaster Quartz

Pull the Crown to Position 2: Quartz models typically do not have a screw-down crown, so simply pull the crown out to the second click (Position 2).

Set the Time: Rotate the crown to adjust the time, ensuring the hands are correctly aligned.

Push the Crown Back In: Once the time is set, push the crown back to Position 0.

Additional Tips for Setting the Time

Check AM/PM: Make sure the watch is set to the correct AM or PM time to ensure accurate date changes.

Time Syncing: Sync the time with a reliable time source, such as an atomic clock or a trusted online time service, for maximum accuracy.

Regular Adjustment: Automatic watches might gain or lose a few seconds per day, so regular time adjustments might be necessary.

Setting the Date and Other Functions

Setting the Date

Pull the Crown to Position 1: This is the first click after the crown is unscrewed or pulled out.

Adjust the Date: Turn the crown until the correct date appears in the date window. Note the direction specified in your model’s manual, as it may vary.

Push the Crown Back In: Push the crown back to Position 0 and screw it down if necessary.

Using the Helium Escape Valve

For professional diving models equipped with a helium escape valve:

Open the Valve: Unscrew the valve counterclockwise before a dive if you anticipate significant underwater pressure.

Close the Valve: Screw the valve back in clockwise after the dive to maintain water resistance.

See Also: How To Wind Omega Seamaster Automatic

Common Issues and Troubleshooting

Watch Not Running

If your automatic Seamaster has stopped running, it may need to be wound. Follow these steps:

Unscrew the Crown: For models with a screw-down crown, unscrew it counterclockwise.

Wind the Watch: Turn the crown clockwise in Position 0 for about 30-40 turns to wind the mainspring.

Set the Time: Follow the steps outlined above to set the correct time.

Screw Down the Crown: Secure the crown by screwing it back in clockwise.

Timekeeping Inaccuracy

If your watch is not keeping accurate time, consider the following:

Manual Winding: Ensure the watch is adequately wound.

Magnetic Fields: Avoid exposing the watch to strong magnetic fields, which can affect its accuracy.

Servicing: Regular servicing by an authorized Omega service center can maintain the watch’s precision and performance.

Stiff or Loose Crown

If the crown feels unusually stiff or loose:

Stiff Crown: Avoid forcing it. A stiff crown might indicate the need for lubrication or professional servicing.

Loose Crown: If the crown feels loose, ensure it is securely screwed down. If the issue persists, consult a professional watchmaker.

Maintaining Your Omega Seamaster

Regular Servicing

Omega recommends regular servicing every 5 to 8 years to ensure optimal performance. During servicing, the watch is disassembled, cleaned, lubricated, and tested to maintain its accuracy and longevity.

Cleaning and Care

Exterior Cleaning: Use a soft cloth to wipe the watch case and bracelet. For more thorough cleaning, use a soft brush and mild soapy water.

Avoid Chemicals: Keep the watch away from chemicals, solvents, and perfumes that can damage the materials.

Water Resistance: Regularly check the water resistance seals and have them replaced as needed to maintain water resistance.

Storing Your Watch

When not wearing your Omega Seamaster:

Watch Box: Store it in its original watch box or a quality watch case to protect it from dust and damage.

Watch Winder: For automatic models, consider using a watch winder to keep the movement running smoothly.


Setting the time on an Omega Seamaster is a straightforward process once you understand the basic functions and mechanisms of the watch. By following the detailed steps outlined in this guide, you can ensure your watch remains accurate and reliable. Regular maintenance and proper handling will preserve its elegance and functionality for years to come, allowing you to enjoy this iconic timepiece to its fullest.

Whether you are a new owner or a seasoned collector, mastering the art of setting and maintaining your Omega Seamaster enhances your appreciation of its craftsmanship and precision. This guide aims to provide you with all the necessary information to keep your Seamaster in top condition, reflecting the timeless legacy of Omega watches.


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