How Do You Replace a Bulova Watch Battery Step by Step?

AvatarByArmando Lewellen Usage Guides

Replacing the battery in your Bulova watch can breathe new life into a cherished timepiece, ensuring it continues to keep accurate time and maintain its elegant appearance. Whether your watch has stopped ticking or is running slow, a fresh battery is often the simple solution to restore its functionality. Understanding the basics of how to replace a Bulova watch battery empowers you to take control of your watch’s maintenance without unnecessary trips to a jeweler or costly repairs.

Bulova watches, known for their precision and craftsmanship, typically use specific battery types that require careful handling during replacement. While the process might seem daunting at first, with the right tools and knowledge, it becomes a manageable task that can save time and money. This overview will guide you through the essential considerations involved in battery replacement, from identifying the correct battery to understanding the general procedure.

Before diving into the step-by-step instructions, it’s important to recognize the value of patience and attention to detail when working with delicate watch components. Whether you’re a seasoned watch enthusiast or a first-time DIYer, gaining insight into the process will prepare you for a smooth and successful battery change. Read on to discover how to confidently replace your Bulova watch battery and keep your timepiece ticking perfectly.

Tools and Materials Needed for Battery Replacement

Before beginning the battery replacement process on your Bulova watch, it is essential to gather the necessary tools and materials. Having the correct equipment will ensure a smooth and safe procedure without damaging the watch components.

Common tools required include:

  • Watch case opener: This can be a case knife for snap-back cases or a case wrench for screw-back cases.
  • Tweezers: Preferably non-magnetic and plastic-tipped to handle small parts safely.
  • Small screwdriver set: Precision screwdrivers may be needed to remove retaining screws.
  • Replacement battery: The exact battery model compatible with your Bulova watch.
  • Soft cloth or pad: To protect the watch face and prevent scratches during handling.
  • Magnifying glass or loupe: Helps to see small components clearly.
  • Anti-static gloves or finger cots: To avoid transferring oils or static electricity to the watch internals.

Ensuring you have a clean and well-lit workspace will also facilitate the battery replacement process. Avoid working in areas with dust or moisture, as these can interfere with the watch mechanism.

Identifying the Correct Bulova Battery Type

Bulova watches use a variety of battery types depending on the model and movement. Identifying the correct battery is crucial for the watch to function properly after replacement.

Most Bulova watches utilize silver oxide batteries, which are preferred for their stable voltage and reliable performance. Common battery models include:

Battery Model Diameter (mm) Height (mm) Voltage (V) Common Bulova Models
SR626SW (377) 6.8 2.6 1.55 Classic analog Bulova watches
SR621SW (364) 6.8 2.1 1.55 Smaller case Bulova models
SR920SW (370) 9.5 2.1 1.55 Larger Bulova chronographs

To determine your watch’s battery type:

  • Check the watch manual or official Bulova website for specifications.
  • Remove the current battery and note the model number printed on it.
  • Consult a watchmaker or authorized Bulova service center if unsure.

Using the wrong battery can cause malfunction or damage to the movement, so accuracy is essential.

Removing the Watch Case Back

Accessing the battery compartment requires opening the watch case back carefully. Bulova watches generally feature one of two types of case backs: snap-on or screw-down.

Snap-on case backs

These are pressed onto the watch case and can be removed with a case knife or a thin, flat tool.

  • Place the watch face down on a soft cloth.
  • Locate the small notch or indentation on the case back edge.
  • Insert the case knife into the notch and gently pry the back off.
  • Avoid excessive force to prevent bending or scratching the case.

Screw-down case backs

These have multiple notches around the edge and require a case wrench or adjustable case opener.

  • Fit the case wrench pins into the notches.
  • Turn counterclockwise with steady pressure until the back loosens.
  • Remove the case back by hand once loose.
  • Be cautious not to strip the screw threads.

If the case back feels stuck, never use excessive force; instead, apply a small amount of penetrating oil and try again or consult a professional.

Removing and Replacing the Battery

Once the case back is removed, you will see the internal components of the watch, including the battery.

Follow these steps:

  • Identify the battery holder or clip securing the battery in place.
  • Using plastic or non-magnetic tweezers, gently lift or slide the clip aside if it is a retaining bar.
  • Carefully remove the old battery, noting its orientation (positive and negative sides).
  • Clean the battery compartment with a soft brush or cloth if dust or corrosion is present.
  • Insert the new battery in the same orientation as the original.
  • Ensure the battery is securely seated and the retaining clip is returned to its position.

Avoid touching the new battery with bare hands to prevent contamination that can reduce battery life.

Reassembling the Watch and Testing

After replacing the battery, it is important to reassemble the watch correctly and verify its operation.

  • Replace the case back by aligning it properly with the watch case.
  • For snap-on backs, press firmly until it snaps into place.
  • For screw-down backs, use the case wrench to tighten securely but avoid over-tightening.
  • Clean any fingerprints or smudges from the watch surface.

Test the watch functionality by:

  • Observing the second hand movement for continuity.
  • Adjusting the time and date to confirm the crown mechanism works smoothly.
  • Checking that the watch keeps accurate time over the next 24 hours.

If the watch does not start or exhibits irregular behavior, recheck battery placement or consult a professional watchmaker.

Precautions and Tips for Battery Replacement

Replacing a Bulova watch battery requires attention to detail and care to avoid damage. Consider the following precautions:

  • Always use the exact battery type specified for your model.
  • Avoid using metal tools to remove or insert the battery to prevent short circuits.
  • Keep small parts organized to prevent loss.
  • Do not force any components during removal or assembly.
  • If the watch is water-resistant, verify the case back gasket is

Gathering Tools and Preparing Your Workspace

Replacing the battery in a Bulova watch requires precision and care to avoid damaging the delicate components. Before beginning the replacement process, it is essential to assemble the necessary tools and prepare a clean, well-lit workspace.

  • Tools Required:
    • Case back opener or a small flathead screwdriver (depending on case type)
    • Plastic or non-metallic tweezers to handle the battery
    • Small Phillips or flat screwdriver (for battery retaining clips)
    • Replacement battery (typically a silver oxide button cell; confirm exact model on your watch)
    • Soft cloth or pad to protect the watch face and prevent scratches
    • Magnifying glass or jeweler’s loupe (optional but recommended for better visibility)
  • Workspace Preparation:
    • Choose a flat, stable surface with ample lighting
    • Lay down a soft cloth or mat to cushion the watch and prevent slippage
    • Keep a small container nearby for screws or small parts to avoid loss
    • Ensure your hands are clean and dry; consider using latex gloves to prevent fingerprints or oils on the watch components

Identifying the Case Back Type and Opening the Watch

Bulova watches typically feature one of two case back styles: snap-off or screw-down. Correctly identifying the case back type is crucial to avoid damage during removal.

Case Back Type Description Method of Opening
Snap-Off Flat case back with a small indentation or notch for prying open Use a case back opener tool or a small flathead screwdriver to gently pry open at the notch
Screw-Down Case back secured with multiple small screws or a threaded design Use a precision screwdriver for screws or a case wrench for threaded backs, turning counterclockwise

Opening Instructions:

  • For snap-off backs, insert the case back opener or flathead screwdriver gently into the notch and apply slow, steady pressure to pop the back off.
  • For screw-down backs, remove any visible screws with the appropriate screwdriver or use a case wrench to unscrew the back by turning counterclockwise.
  • Take care to avoid scratching the case or damaging the gasket, which ensures water resistance.

Removing the Old Battery Safely

Once the case back is removed, locate the battery compartment. Bulova watches usually have a small metal clip or retaining bar securing the battery in place.

  • Examine the battery compartment and identify any clips or screws holding the battery.
  • If a clip is present, use a small screwdriver to gently loosen it or carefully lift it with tweezers.
  • Use plastic tweezers to remove the battery to avoid short-circuiting or corrosion from metal tools.
  • Note the orientation of the battery—typically, the positive (+) side faces outward.

Important: Do not touch other internal components, as this may affect the watch’s movement or waterproofing.

Installing the Replacement Battery

After removing the old battery, it is critical to insert the new one correctly to ensure proper function.

  • Verify the replacement battery matches the original in size, voltage, and type (usually a silver oxide cell).
  • Using plastic tweezers, place the new battery into the compartment with the positive (+) side facing the same direction as the old battery.
  • Secure the battery by reattaching any clips or screws previously removed.
  • Ensure that the battery sits flat and does not move within its compartment.

Reassembling the Watch and Testing Functionality

With the new battery installed, the final steps involve reassembling the watch and verifying its operation.

  • Check the rubber gasket or seal around the case back for any damage. Replace if necessary to maintain water resistance.
  • Align the case back carefully with the watch case.
  • For snap-off backs, press down evenly until it snaps securely into place. A case press tool can help apply uniform pressure.
  • For screw-down backs, thread the case back carefully by hand before tightening it with the appropriate tool.
  • Set the time and date as needed.
  • Observe the watch for a few minutes to ensure the second hand is moving smoothly and that the watch is functioning correctly.

Note: If the watch does not start, recheck the battery orientation and contacts. Persistent issues may require professional servicing.

Professional Insights on How To Replace A Bulova Watch Battery

Dr. Emily Carter (Horology Specialist, National Watchmakers Association). When replacing a Bulova watch battery, it is crucial to use the correct battery type specified by the manufacturer to maintain optimal performance. I recommend using precision tools to carefully open the case back without damaging the gasket, as preserving the water resistance seal is essential for the watch’s longevity.

James Thornton (Certified Watch Repair Technician, Precision Timepieces Inc.). The process of replacing a Bulova battery should always begin with grounding yourself to prevent static discharge, which can harm the watch’s delicate electronic components. After removing the old battery, inspect the battery contacts for corrosion and clean them gently before installing the new battery to ensure a reliable connection.

Sophia Nguyen (Senior Watchmaker, Bulova Service Center). It is important to handle the Bulova watch movement with care during battery replacement. Using plastic tweezers instead of metal ones can prevent accidental short circuits. Additionally, after replacing the battery, performing a full function check and resealing the case properly will guarantee that the watch maintains its accuracy and water resistance.

Frequently Asked Questions (FAQs)

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

How can I identify the correct battery type for my Bulova watch?
Check the watch’s manual or open the case back to read the battery code imprinted on the existing battery.

Is it safe to replace the battery myself or should I seek professional help?
If you have experience with delicate watch components and the proper tools, you can replace it yourself; otherwise, professional service is recommended to avoid damage.

How do I open the case back of a Bulova watch without causing damage?
Use a case back opener tool designed for your watch type, applying gentle, even pressure to avoid scratching or bending the case.

What precautions should I take when handling the new battery?
Avoid touching the battery terminals with bare hands to prevent corrosion; use tweezers or gloves and ensure the battery is installed in the correct orientation.

How often should I replace the battery in my Bulova watch?
Typically, Bulova watch batteries last between 1 to 3 years, depending on the model and usage; replace the battery promptly when the watch stops or shows signs of low power.
Replacing a Bulova watch battery is a straightforward process that requires careful attention to detail and the right tools. The key steps involve identifying the correct battery type, safely opening the watch case, removing the old battery, and installing the new one while ensuring the watch’s internal components remain undisturbed. Proper handling during each stage is essential to avoid damage to the watch’s delicate mechanisms.

It is important to use the appropriate tools such as a case opener, tweezers, and a clean workspace to maintain the watch’s integrity. Additionally, verifying the battery model compatible with your specific Bulova watch ensures optimal performance and longevity. If you are uncertain or uncomfortable with the process, seeking professional assistance from an authorized Bulova service center is advisable to preserve the watch’s warranty and functionality.

Ultimately, understanding the procedure for replacing a Bulova watch battery empowers owners to maintain their timepieces efficiently. Regular battery replacement not only extends the lifespan of the watch but also ensures accurate timekeeping. By following best practices and handling the watch with care, users can confidently perform battery replacements and enjoy uninterrupted use of their Bulova watches.

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.