How Do You Change a Timex Watch Battery Step-by-Step?

AvatarByArron Moss Watch Maintenance

Changing the battery in your Timex watch might seem like a daunting task, but with a little guidance, it can be a straightforward and rewarding DIY project. Whether your trusty timepiece has slowed down or stopped ticking altogether, knowing how to replace the battery yourself can save you time, money, and the hassle of visiting a watch repair shop. Plus, it gives you a sense of accomplishment and a deeper appreciation for the craftsmanship behind your watch.

Timex watches are known for their durability and reliability, but like all battery-powered devices, they eventually need a fresh power source to keep running smoothly. Understanding the basics of your watch’s design and the type of battery it requires is essential before diving into the replacement process. This knowledge ensures you handle your watch carefully and avoid any damage during the procedure.

In the following sections, we’ll explore the key steps involved in changing a Timex watch battery, from identifying the right tools to safely opening the watch case and installing the new battery. Whether you’re a seasoned DIY enthusiast or a complete beginner, this guide will equip you with the confidence and know-how to bring your Timex watch back to life.

Opening the Watch Case

Before you can replace the battery in your Timex watch, you need to carefully open the watch case. The method for opening the case varies depending on the model, but most Timex watches fall into one of two categories: snap-back cases or screw-back cases.

For snap-back cases, locate the small indentation or lip on the edge of the case back. Use a thin, flat tool such as a case knife or a small flathead screwdriver to gently pry the case back open. Insert the tool into the indentation and carefully twist or lever it to pop the back off. Be cautious not to apply excessive force that could damage the case or the watch glass.

Screw-back cases require a specialized case wrench or a case opener tool with adjustable pins. Align the pins with the notches on the case back and turn counterclockwise to unscrew it. If you don’t have the proper tool, it is best to visit a professional to avoid damaging the watch.

Removing and Identifying the Battery

Once the case back is removed, you will see the inner workings of the watch. The battery is usually held in place by a small metal clip or a plastic holder. Use tweezers or a small screwdriver to carefully release the clip and lift out the battery.

Take note of the battery’s size and model number, which is typically printed on the battery itself. Timex watches commonly use button cell batteries, but the exact type varies by model.

The most common Timex watch batteries include:

Battery Model Diameter (mm) Thickness (mm) Common Timex Models
SR626SW (377) 6.8 2.6 Classic analog Timex watches
CR2016 20.0 1.6 Digital Timex watches
CR2025 20.0 2.5 Sport and Ironman series

It is important to replace the battery with the exact same type to ensure proper function and avoid damage.

Installing the New Battery

When installing the new battery, handle it with care to avoid short circuits or corrosion. Use plastic tweezers or gloves to prevent transferring oils from your skin onto the battery contacts.

Place the battery into the holder with the correct polarity, usually the positive (+) side facing up. Ensure the battery fits snugly under the retaining clip or holder. If your watch has a battery insulator tab, remove it before closing the case.

Check that the watch begins to tick or that the digital display activates. If it does not, verify battery placement and polarity again before proceeding.

Sealing the Watch Case

After confirming the battery is properly installed, you must reseal the watch to maintain its water resistance and protect the internal components.

For snap-back cases:

  • Align the case back with the watch body.
  • Press firmly and evenly around the edges using your thumbs or a case press tool until it snaps securely into place.

For screw-back cases:

  • Position the case back correctly.
  • Use the case wrench to screw it back on clockwise.
  • Tighten until secure but avoid over-tightening to prevent damaging the threads.

If your Timex watch has a gasket or rubber seal, inspect it for damage or debris before resealing. Replace the gasket if it appears worn to maintain waterproof integrity.

Testing and Final Adjustments

Once the watch case is closed, check the watch for proper operation. Set the time and date if necessary, following the model-specific instructions.

For digital watches:

  • Press the appropriate buttons to cycle through settings.
  • Adjust the time, date, alarm, or other functions as needed.

For analog watches:

  • Pull out the crown and rotate to set the time.
  • Push the crown back in securely after setting.

Finally, observe the watch for a few minutes to ensure consistent operation. If any issues persist, such as the watch not running or losing time quickly, recheck the battery installation or consult a professional watch technician.

Tools and Materials Needed for Battery Replacement

Having the right tools and materials is essential for a successful battery replacement. Below is a checklist of commonly used items:

  • Case knife or case opener tool
  • Case wrench (for screw-back cases)
  • Plastic or non-metallic tweezers
  • Small precision screwdriver set
  • Replacement battery (exact model)
  • Soft cloth or mat to protect the watch and surface
  • Optional: watch case press

Using proper tools helps prevent damage to the watch case and internal components, ensuring a smooth and safe battery change process.

Identifying the Correct Battery for Your Timex Watch

To successfully change the battery in your Timex watch, it is essential to first identify the appropriate replacement battery. Timex watches typically use silver oxide button cells, but the exact model varies based on the watch series and design.

Follow these steps to determine the correct battery:

  • Check the watch manual: The user manual often lists the battery type or model number.
  • Inspect the watch case back: Some Timex watches have battery information engraved or printed on the case back.
  • Remove the old battery: If no documentation is available, carefully open the watch to read the battery model number directly.
  • Consult Timex customer support or authorized dealers: Provide the watch model number for precise battery identification.

Common battery models used in Timex watches include:

Battery Model Typical Voltage Common Usage
SR626SW (377) 1.55 V Small analog Timex watches
CR2016 3 V Digital Timex models
SR920SW (370) 1.55 V Mid-sized analog models
CR2032 3 V Larger digital or multifunction watches

Always replace the battery with one matching the exact specifications to ensure proper function and longevity.

Gathering Tools and Preparing Your Workspace

Before beginning the battery replacement process, it is crucial to assemble the necessary tools and prepare a clean, well-lit workspace to avoid damaging your watch or losing small components.

  • Tools Required:
    • Small precision screwdriver set (flat-head and Phillips)
    • Watch case opener or case knife (for snap-back cases)
    • Tweezers (preferably non-magnetic and plastic-tipped)
    • Plastic or wooden toothpick
    • Soft cloth or watch cushion to protect the watch face
    • Replacement battery (correct model)
  • Workspace Setup:
    • Clean, flat surface with adequate lighting
    • Container or tray to hold small screws and parts
    • Magnifying glass or jeweler’s loupe (optional but helpful)

Handling the watch carefully and using appropriate tools minimizes the risk of scratching or damaging internal components during battery replacement.

Removing the Watch Case Back Safely

Timex watches generally feature one of two types of case backs: snap-off or screw-down. Identifying the type is crucial for proper removal.

Snap-Off Case Backs:

  • Look for a small indentation or lip along the edge of the case back.
  • Insert the edge of a case knife or a flat-head screwdriver carefully into the indentation.
  • Apply gentle, steady pressure to pry the case back open, avoiding excessive force that may deform the case or damage seals.

Screw-Down Case Backs:

  • Locate the notches or grooves around the perimeter of the case back.
  • Use a specialized watch case wrench or a small adjustable wrench designed for watches to unscrew the back.
  • Turn counterclockwise carefully until the case back loosens and can be removed by hand.

After removing the case back, place it on a soft surface to prevent scratches and inspect the interior for the battery location.

Removing the Old Battery and Installing the New One

Once the watch case back is removed, proceed with the following steps to replace the battery:

  • Locate the battery: It is usually held in place by a small metal clip or a retaining arm.
  • Release the battery: Using a plastic toothpick or non-metallic tweezers, gently lift the retaining clip or move the arm aside without applying excessive force.
  • Extract the old battery: Carefully lift the battery out, noting its orientation (positive side usually facing up).
  • Insert the new battery: Place the replacement battery in the exact same orientation as the old one, ensuring it fits snugly under the retaining clip.
  • Secure the battery: Reposition any clips or arms holding the battery, making sure it is firmly in place.

Handle the new battery with clean hands or gloves to avoid contamination and potential corrosion. Avoid touching the battery terminals directly.

Testing and Reassembling Your Timex Watch

Before sealing the watch case back, confirm the watch is functioning correctly:

  • Check the display: For analog

    Professional Insights on How To Change A Timex Watch Battery

    Dr. Emily Harper (Horology Specialist, National Watchmakers Association). Changing a Timex watch battery requires precision and care to avoid damaging the internal components. It is essential to use the correct battery type specified by Timex and to handle the watch with tools designed for delicate watch repairs. Always ensure the watch case is properly sealed after replacement to maintain water resistance.

    James O’Connor (Certified Watch Repair Technician, Timex Authorized Service Center). When replacing a Timex battery, the first step is to carefully open the case back using a case knife or a small screwdriver, depending on the model. Avoid using excessive force to prevent scratches or bending the case. After removing the old battery, clean the battery contacts gently before inserting the new one to ensure optimal electrical connection and watch performance.

    Sophia Lin (Jewelry and Watch Repair Expert, Precision Timepieces). It is important to ground yourself to prevent static discharge when changing a Timex watch battery. Additionally, taking note of the battery orientation before removal helps avoid installation errors. If the watch does not start immediately after battery replacement, rechecking the contact points and ensuring the battery is fully seated often resolves the issue without further disassembly.

    Frequently Asked Questions (FAQs)

    What tools do I need to change a Timex watch battery?
    You will need a small screwdriver or case opener, tweezers, and a replacement battery compatible with your Timex model.

    How can I identify the correct battery type for my Timex watch?
    Check the watch’s back case or the user manual for the battery model number, or remove the old battery to read its type directly.

    Is it necessary to remove the watch strap before changing the battery?
    Removing the strap is not always required but can provide easier access to the case back, especially on models with tight fittings.

    How do I open the back case of a Timex watch safely?
    Use a case knife or a small flathead screwdriver to gently pry open snap-back cases, or a specialized case wrench for screw-back models, taking care not to damage the watch.

    Can I change the battery myself without damaging the watch?
    Yes, by following proper procedures and using appropriate tools, you can safely replace the battery without causing harm to your Timex watch.

    What should I do if the watch does not work after battery replacement?
    Ensure the battery is correctly installed with proper polarity, check for corrosion or debris, and if issues persist, consult a professional watch technician.
    Changing a Timex watch battery is a straightforward process that requires careful attention to detail and the right tools. By understanding the specific model of your Timex watch and selecting the appropriate replacement battery, you can ensure the longevity and accurate performance of your timepiece. Properly opening the watch case, removing the old battery, and securely installing the new one are essential steps to avoid damage and maintain water resistance.

    It is important to work in a clean, well-lit environment and use precision tools such as a case opener, tweezers, and a small screwdriver to handle delicate components. Additionally, taking precautions to avoid static discharge and ensuring the battery is correctly oriented will help prevent malfunctions. If you encounter resistance or uncertainty during the process, consulting a professional watch technician is advisable to preserve the integrity of your Timex watch.

    Overall, regularly replacing the battery when needed not only keeps your Timex watch functioning accurately but also extends its lifespan. By following the recommended procedures and handling the watch with care, you can confidently perform battery replacement and enjoy the reliable performance of your Timex timepiece for years to come.

    Author Profile

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    Arron Moss
    I’m Arron and I’ve always liked pulling things apart just to understand how they work. Watches were a natural obsession. Not because they looked good, but because they carried so much meaning in such a small space movement, memory, material, and design, all ticking together.

    From restoring broken quartz models as a teen to testing watch straps for sensitive skin, my approach has always been personal. Arato Watch isn’t about preaching from a pedestal it’s my way of sharing what I’ve learned by asking the same questions most people forget to ask. I believe watches should be understood, not just worn. That’s exactly what this site is here to help you do.