How Do You Change the Battery in a Timex Watch?

AvatarByArmando Lewellen Watch Brands

If you own a Timex watch, you know it’s more than just a timepiece—it’s a reliable companion that keeps you punctual and stylish. But like all battery-powered watches, there comes a time when your Timex needs a fresh battery to keep ticking smoothly. Knowing how to change the battery yourself can save you time, money, and the hassle of visiting a watch repair shop.

Replacing the battery in a Timex watch might seem daunting at first, especially if you’re unfamiliar with the delicate components inside. However, with a bit of care and the right approach, it’s a straightforward task that many watch owners can handle at home. Understanding the basics of your watch’s construction and the proper tools needed will set you up for success.

In the following sections, we’ll explore the essential steps and tips to help you confidently change the battery in your Timex watch. Whether you’re a seasoned DIY enthusiast or a first-timer, this guide will prepare you to bring your watch back to life and keep it running perfectly.

Opening the Watch Case

Before replacing the battery in your Timex watch, you need to carefully open the case back. The method to open the case depends on the type of case back your watch has, which can be one of the following: snap-off, screw-down, or screw-back with screws.

For snap-off case backs, gently insert a case knife or a thin blade into the small notch on the edge of the back cover. Apply steady pressure to pry the cover off without damaging the watch or slipping and injuring yourself.

Screw-down case backs require a specialized case wrench or a watch case opener tool. Align the pins of the tool with the notches on the case back and turn counterclockwise to unscrew the back. This type provides a tighter seal, so it may require more effort.

If your Timex has a case back secured with small screws, use a precision screwdriver to remove each screw carefully. Place the screws in a safe place to avoid losing them.

Always work on a clean, flat surface with adequate lighting. Using a soft cloth underneath can prevent scratches on the watch or slipping of tools.

Removing the Old Battery

Once the case is open, the battery will be visible inside the movement compartment. Typically, Timex watches use button cell batteries held in place by a metal clip or retainer.

To remove the old battery:

  • Identify the battery type by reading the number printed on its surface. This is essential for purchasing the correct replacement.
  • Use plastic tweezers or a non-metallic tool to avoid short-circuiting the battery or damaging delicate components.
  • Gently lift or slide the battery clip aside, if present, to free the battery.
  • Carefully remove the battery, taking note of its orientation (positive and negative sides). This ensures correct placement of the new battery.

Avoid touching other components with tools to prevent damage to the watch’s internal mechanisms.

Inserting the New Battery

After removing the old battery, the new battery must be installed correctly to ensure proper function.

  • Verify that the replacement battery matches the original in size and voltage.
  • Place the new battery in the same orientation as the old one, typically with the positive side facing up.
  • Secure the battery under the clip or retainer without forcing it.
  • Double-check that the battery is seated firmly and making contact with the terminals.

If the watch has a plastic spacer or insulator, ensure it remains in place during reassembly.

Closing the Watch Case

After the battery replacement, the watch case must be closed carefully to maintain water resistance and protect internal parts.

For snap-off backs:

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

For screw-down backs:

  • Place the back onto the watch case.
  • Use the case wrench to turn it clockwise until snug. Do not overtighten to avoid stripping the threads.

For backs secured with screws:

  • Replace each screw carefully and tighten evenly with the correct screwdriver.

It is advisable to check the watch functions before closing the case completely to ensure the battery and movement are working properly.

Common Battery Types Used in Timex Watches

Timex watches often use a variety of button cell batteries depending on the model. Below is a table summarizing common battery types, their specifications, and typical Timex models that use them.

Battery Model Voltage (V) Diameter (mm) Thickness (mm) Common Timex Models
CR2016 3 20 1.6 Ironman Classic, Expedition
CR2025 3 20 2.5 Ironman Triathlon, Marathon
CR2032 3 20 3.2 Expedition Field, Weekender
SR626SW 1.55 6.8 2.6 Classic analog models

Always confirm the battery model by checking the existing battery or the watch manual before purchasing a replacement.

Additional Tips for Battery Replacement

  • Use antistatic gloves or tools to prevent static discharge that can damage electronic components.
  • Avoid touching the new battery with bare hands, as oils and dirt can reduce battery life.
  • Dispose of old batteries properly following local hazardous waste regulations.
  • If your watch has a water resistance rating, consider having the seals checked or replaced during battery replacement to maintain protection.
  • Should you encounter resistance or difficulty opening or closing the watch case, consult a professional watchmaker to avoid damage.

Accessing the Back Cover of Your Timex Watch

Before replacing the battery in your Timex watch, it is essential to carefully remove the back cover without causing damage to the watch. Timex watches typically have one of three types of back covers: snap-off, screw-down, or screw-in with small screws. Identifying the type will determine the proper tools and method for removal.

  • Snap-off Back Cover: These covers are pressed into place and can be popped off using a case knife or a thin, flat tool.
  • Screw-down Back Cover: These covers have notches around the edge and require a case wrench or a specialized tool to unscrew.
  • Screw-in Back Cover: Secured with small screws, requiring a precision screwdriver to remove them.

Recommended Tools:

Tool Purpose Notes
Case Knife or Pry Tool Opening snap-off backs Use gently to avoid scratching or bending the case
Case Wrench Unscrewing screw-down backs Adjustable to fit different notch sizes
Precision Screwdriver Set Removing small screws on screw-in backs Use the correct size to prevent stripping screws
Tweezers Handling small parts like batteries Preferably non-magnetic stainless steel

When opening the back cover, ensure you work on a clean, flat surface with sufficient lighting. Protect the watch face by placing it on a soft cloth to prevent scratches. Apply steady, controlled force with the appropriate tool. Avoid using excessive force that could damage the watch case or internal components.

Removing and Identifying the Battery

Once the back cover is removed, the battery will be visible within the watch movement. It is important to carefully note the battery type before removal to ensure proper replacement.

  • Examine the battery for any printed codes or numbers, typically alphanumeric, such as “CR2016” or “SR626SW.”
  • Use non-metallic or plastic tweezers to avoid short-circuiting the battery or damaging the movement.
  • Gently lift the battery from its compartment, taking note of the battery orientation (positive and negative sides).

In some Timex models, a small clip or retainer holds the battery in place. If so, carefully unclip or unscrew it before removing the battery. Avoid touching the internal components of the watch beyond what is necessary to remove the battery.

Choosing the Correct Replacement Battery

Using the correct battery model is critical for the proper functioning and longevity of your Timex watch. Always match the battery code exactly as found on the original battery.

Common Timex Battery Types Battery Code Voltage Typical Watch Models
Silver Oxide Button Cell SR626SW 1.55V Many analog Timex watches
Lithium Button Cell CR2016 3V Digital Timex watches and models with additional functions
Silver Oxide Button Cell SR621SW 1.55V Smaller analog Timex watches

Purchase batteries from reputable suppliers to avoid counterfeit or low-quality cells. Confirm compatibility with your watch model if uncertain.

Installing the New Battery and Reassembling the Watch

After securing the correct battery, follow these steps to install it and close the watch properly:

  • Place the new battery in the compartment with the correct polarity orientation.
  • If a clip or retainer was present, carefully secure it back in place without applying excessive pressure.
  • Before closing the back cover, verify the watch is functioning by checking the second hand movement or display activation.
  • Clean any fingerprints or dust from the watch case and back cover to maintain appearance and avoid contamination.
  • Reattach the back cover using the appropriate method:
    • Snap-off cover: Align and press firmly until it snaps into place. Use a case press if necessary to avoid damage.
    • Screw-down cover: Use the case wrench to screw it back tightly but without over-tightening.
    • Screw-in cover:Expert Guidance on How To Change Battery In Timex Watch

      Dr. Emily Carter (Horology Specialist, National Watchmakers Institute). When replacing the battery in a Timex watch, it is crucial to use the correct battery type specified for the model to ensure optimal performance. Additionally, carefully removing the case back with the appropriate tools prevents damage to the watch’s water resistance and internal components.

      Michael Torres (Certified Watch Repair Technician, Timex Authorized Service Center). I recommend working in a clean, well-lit environment and using a plastic or non-metallic tool to lift the battery out, avoiding short circuits. After replacement, always test the watch functions before resealing the case to confirm the battery installation was successful.

      Sophia Nguyen (Consumer Electronics Expert, Timepiece Reviews Magazine). For most Timex watches, the battery replacement process is straightforward but requires patience and precision. If you are unfamiliar with watch repair, consulting the user manual or seeking professional assistance can prevent inadvertent damage and maintain the watch’s longevity.

      Frequently Asked Questions (FAQs)

      What tools are needed to change the battery in a Timex watch?
      You will need a small screwdriver or case back opener, tweezers, and a replacement battery compatible with your Timex watch model.

      How do I identify the correct battery type for my Timex watch?
      Check the watch’s user manual or open the case back to read the battery code printed on the existing battery. Alternatively, consult Timex customer support or authorized dealers.

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

      Can I change the battery in my Timex watch without damaging it?
      Yes, by using proper tools and following precise steps, you can safely change the battery. Avoid using excessive force or metal tools that may scratch or damage internal components.

      How often should I replace the battery in a Timex watch?
      Typically, Timex watch batteries last between 1 to 3 years depending on the model and usage. Replace the battery promptly when the watch stops or shows low power signs.

      Should I reset or recalibrate my Timex watch after changing the battery?
      Some Timex models may require resetting or time recalibration after battery replacement. Refer to your watch’s manual for specific instructions on resetting functions.
      Changing the battery in a Timex watch is a straightforward process that requires careful handling and the right tools. It typically involves removing the back cover, extracting the old battery, and replacing it with a new one of the correct type. Ensuring the watch is properly sealed after the replacement is crucial to maintain its water resistance and overall functionality.

      Key considerations include using a suitable screwdriver or case opener, working in a clean environment to avoid dust or damage, and verifying the battery model to match the watch’s specifications. If unsure or if the watch has complex features, seeking professional assistance from a certified watch technician is recommended to prevent any accidental damage.

      Overall, with attention to detail and proper technique, replacing the battery in a Timex watch can be done efficiently, extending the life of the timepiece and ensuring accurate timekeeping. Regular battery checks and timely replacements contribute to the watch’s longevity and optimal performance.

      Author Profile

      Armando Lewellen
      Armando Lewellen
      I’m Armando Lewellen, and I run Veldt Watch. I’ve always enjoyed taking the time to understand how watches fit into everyday life, not just how they look or what they promise. My background is in writing and explaining technical topics clearly, which naturally shaped how I approach watch information.

      Over the years, I’ve learned through daily wear, basic maintenance, research, and quiet observation. In 2026, I created Veldt Watch to share clear, pressure free explanations and answer the kinds of watch questions people often struggle to find simple answers to.