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

AvatarByArron Moss Watch Maintenance

Replacing the battery in your Bulova watch can breathe new life into a cherished timepiece, restoring its precision and reliability without the need for costly professional service. Whether your watch has stopped ticking or the second hand is skipping, understanding how to replace the battery yourself empowers you to maintain your watch’s performance with confidence and ease. This simple yet essential maintenance step ensures your Bulova continues to keep perfect time, day after day.

While the idea of opening a watch might seem daunting at first, many Bulova models are designed with user-friendly access in mind, making battery replacement a manageable task for watch enthusiasts and beginners alike. Knowing the right tools, precautions, and procedures can save you time and money, while also giving you a satisfying sense of accomplishment. Before diving into the specifics, it’s helpful to gain a broad understanding of what the process entails and why it’s important to handle your watch carefully.

In the following sections, we’ll explore the key considerations and general steps involved in replacing a Bulova watch battery. From identifying the correct battery type to safely opening the case and ensuring a proper seal afterward, you’ll be guided through the essentials that keep your timepiece ticking accurately and looking great. Whether you’re a seasoned DIYer or a first-timer, this overview will prepare you

Opening the Watch Case

To replace the battery in your Bulova watch, the first step is to carefully open the watch case. Bulova watches typically have one of three types of case backs: snap-off, screw-down, or screw-back with multiple screws. Identifying the case back type is essential to select the correct tools and avoid damaging your watch.

For a snap-off case back, use a thin, flat blade or a specialized case opener knife. Insert the blade into the small notch on the edge of the case back and gently pry it open. Avoid excessive force, as this can scratch or deform the case.

Screw-down case backs require a case wrench or a Jaxa tool. These tools fit into the notches on the back, allowing you to unscrew the case evenly. Turn counterclockwise to loosen the back.

If your Bulova has multiple small screws securing the back, use a precision screwdriver to remove them. Place the screws in a small container to avoid losing them.

Always work on a clean, flat surface with good lighting. Use a soft cloth or pad to protect the watch face from scratches during the process.

Removing and Identifying the Battery

Once the case back is removed, you will see the internal mechanism and the battery. The battery is usually held in place by a small clip or a retaining bar. Carefully observe how the battery is secured before attempting removal.

Use plastic tweezers or a non-metallic tool to avoid short-circuiting the battery or damaging the movement. Gently lift the retaining clip or unscrew it if necessary, then remove the battery.

Take note of the battery type and number, which is typically printed on the battery itself. Bulova watches commonly use silver oxide batteries, but confirm the exact model to ensure compatibility.

If the battery is corroded or leaking, clean the battery compartment with a cotton swab dipped in isopropyl alcohol, taking care not to touch the movement.

Choosing the Correct Replacement Battery

Selecting the proper battery is crucial for optimal watch performance and longevity. Bulova watches generally use button cell batteries, but variations exist depending on the model and movement type.

Consult your watch’s manual or the battery number you noted earlier. If unavailable, a reputable jeweler or watch repair specialist can assist in identifying the correct battery.

The table below lists common Bulova battery types and their specifications:

Battery Model Type Voltage Typical Lifespan Compatible Bulova Models
SR626SW Silver Oxide 1.55V 1-2 years Most analog quartz models
SR621SW Silver Oxide 1.55V 1-2 years Smaller analog quartz watches
CR2032 Lithium 3V 2-3 years Digital and chronograph models
SR920SW Silver Oxide 1.55V 2-3 years Chronograph and larger dial watches

Ensure the replacement battery matches the original in size, voltage, and chemistry to avoid damage or malfunction.

Installing the New Battery

When installing the new battery, handle it with care to prevent contamination or damage. Use plastic tweezers or gloves to avoid skin oils from affecting battery contacts.

Place the battery in the compartment with the correct polarity. Typically, the positive (+) side faces up, but verify this based on the watch’s design.

Secure the battery by reattaching the retaining clip or bar, ensuring it is firmly in place without applying excessive pressure.

Before closing the case back, check that the watch is running. If the watch does not start, verify the battery orientation and contact points.

Sealing the Watch Case

After confirming the watch is functioning, the case back must be resealed properly to maintain water resistance and protect the internal components.

For snap-off cases, align the case back and press firmly with your thumbs or use a watch press tool to snap it back into place evenly.

For screw-down case backs, engage the threads carefully and tighten with the case wrench, avoiding over-tightening which can strip threads or damage the gasket.

If screws were removed, replace them securely but gently to prevent damage.

Check the gasket or rubber seal for any signs of wear or damage; replacing it can help preserve water resistance.

Testing and Final Checks

Once reassembled, perform several checks to ensure the watch operates correctly:

  • Verify that the hands move smoothly and the watch keeps accurate time.
  • Set the time and date functions to confirm proper adjustment.
  • Test any additional features, such as chronographs or alarms.
  • Check the case back for a tight seal to prevent moisture ingress.

If your Bulova watch is water-resistant, consider having a professional pressure test performed to confirm the integrity of the seal.

Proper battery replacement and careful reassembly will help maintain the performance and longevity of your Bulova timepiece.

Preparing to Replace Your Bulova Watch Battery

Before beginning the battery replacement process for your Bulova watch, it is essential to gather the necessary tools and create an appropriate workspace. Working in a clean, well-lit area helps prevent the loss of small components and minimizes the risk of damage.

  • Tools Needed:
    • Case back opener (case knife or a small flat screwdriver)
    • Tweezers (preferably non-magnetic and plastic-tipped)
    • Small Phillips or flathead screwdriver (if applicable)
    • New battery (correct size and model for your Bulova watch)
    • Soft cloth or anti-static mat to protect the watch face
    • Magnifying glass or loupe (optional, for better visibility)
    • Silicone gloves or finger cots to prevent oils on the battery and internal parts

Check the model number of your Bulova watch and identify the correct battery type, typically a silver oxide button cell. The battery type is often inscribed inside the case back or in the watch’s manual. Using the wrong battery can cause malfunction or damage to the movement.

Opening the Case Back of a Bulova Watch

Bulova watches feature different case back types, primarily snap-off or screw-down. Identifying the case back type determines the appropriate method for opening the watch safely.

Case Back Type Identification Opening Method
Snap-Off Small indentation or lip on the edge of the case back Use a case knife or flat screwdriver to gently pry open at the indentation
Screw-Down Multiple notches or grooves along the perimeter Use a dedicated case back wrench or adjustable tool to unscrew

To open a snap-off case back:

  • Place the watch face down on a soft cloth to prevent scratches.
  • Locate the indentation at the edge of the case back.
  • Insert the case knife or flat screwdriver carefully and apply gentle upward pressure.
  • Work slowly to avoid bending the case back or damaging the gasket.

For screw-down case backs:

  • Secure the watch in a holder or grip to prevent slipping.
  • Align the case back wrench’s pins with the grooves on the case back.
  • Turn counterclockwise slowly to unscrew the back.
  • Keep track of any rubber gasket or sealing ring, as it must be reinstalled properly.

Removing and Identifying the Battery

Once the case back is open, the next step is to locate and remove the battery. Bulova watches typically have the battery secured by a small clip or a metal strap.

  • Note the battery’s orientation (positive and negative sides) before removal to ensure correct installation.
  • Use non-metallic tweezers or a plastic tool to avoid short-circuiting the battery.
  • If a retaining clip or screw holds the battery, carefully loosen it with a screwdriver or gently lift the clip.
  • Remove the battery slowly and avoid touching other internal components.

After removal, check the battery’s code (e.g., SR626SW, 377) printed on the surface. This code is necessary to purchase the exact replacement.

Installing the New Battery and Reassembling the Watch

To install the new battery correctly, follow these detailed steps:

  • Using tweezers or gloved fingers, place the new battery in the same orientation as the old one.
  • Secure the battery with the clip or screw if applicable.
  • Check that the battery is seated firmly and that the watch movement shows signs of power (e.g., the second hand begins to move).
  • Inspect the rubber gasket or seal on the case back for any damage; replace if necessary to maintain water resistance.
  • Align the case back carefully and press or screw it back into place:
    • Snap-off backs require firm, even pressure around the edges until they click shut.
    • Screw-down backs must be turned clockwise using the case back wrench until securely tightened.

Avoid over-tightening to prevent damage to the case back or watch threads.

Testing the Watch After Battery Replacement

After reassembling the watch, it is crucial to verify proper function and water resistance (if applicable).

  • Observe the watch hands for smooth and continuous movement.
  • Set the time and date to confirm the crown and functions operate correctly.
  • If your Bulova watch is water resistant, consider testing water resistance professionally, especially if the gasket was disturbed.
  • Monitor the watch over the next 24 hours to ensure the battery is powering the movement consistently.

If the watch does not start or behaves irregularly, re-open the case and verify battery placement and contact points. Avoid forcing any components and consult a professional watch

Professional Insights on How To Replace Bulova Watch Battery

Dr. Elaine Thompson (Horology Specialist, National Watchmakers Institute). When replacing a Bulova watch battery, it is essential to use the correct battery type specified by the manufacturer to maintain optimal performance. Additionally, taking precautions to avoid damaging the delicate internal components during case opening is critical. Using a proper case opener and anti-static tools ensures the watch’s movement remains unaffected.

Michael Chen (Certified Watch Repair Technician, Precision Timepieces Repair). The key to successfully replacing a Bulova watch battery lies in a clean, dust-free environment and the use of precision screwdrivers to avoid stripping screws. After battery replacement, it is important to check the gasket seal and apply a small amount of silicone grease to preserve water resistance, especially for models designed for underwater use.

Linda Garcia (Senior Watchmaker, Bulova Authorized Service Center). For Bulova watches, I recommend performing battery replacement only after carefully noting the battery orientation and ensuring the new battery matches the exact voltage and size. It is also advisable to test the watch’s functions post-replacement to confirm proper operation, and if unsure, seek professional servicing to prevent voiding the warranty.

Frequently Asked Questions (FAQs)

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

How do I identify the correct battery for my Bulova watch?
Check the existing battery for a model number or consult the user manual or Bulova’s official website to find the recommended battery type.

Is it safe to replace the battery myself or should I visit a professional?
While replacing the battery yourself is possible with proper tools and care, visiting a professional ensures the watch remains sealed and water-resistant.

How do I open the back case of a Bulova watch?
Most Bulova watches have a snap-back or screw-back case; use a case opener tool for screw-backs or a thin blade for snap-backs, applying gentle pressure to avoid damage.

What precautions should I take when replacing the battery?
Avoid touching the new battery with bare hands to prevent corrosion, ensure the battery is correctly oriented, and verify the watch seals are intact to maintain water resistance.

How often should I replace the battery in a 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 the battery in a Bulova watch 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 properly installing the new one. Ensuring the watch is clean and handling all components delicately will help maintain the watch’s integrity and functionality.

It is essential to use a compatible battery to avoid damage and ensure optimal performance. Additionally, taking precautions such as working in a clean, well-lit environment and using appropriate watch repair tools can prevent accidental harm to the watch’s internal mechanisms. If you are uncertain or uncomfortable performing the replacement yourself, consulting a professional watch technician is advisable.

Ultimately, regular maintenance and timely battery replacement will prolong the life of your Bulova watch, preserving both its accuracy and aesthetic appeal. By following the proper procedure and handling the watch with care, you can confidently replace the battery and continue enjoying your 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.