How Do You Change a Bulova Watch Battery?

AvatarByArmando Lewellen Usage Guides

Changing the battery in your Bulova watch is a simple yet essential maintenance task that can keep your timepiece running smoothly and accurately. Whether your watch has stopped ticking or is showing signs of a weak battery, knowing how to replace the battery yourself can save time and money while giving you a greater appreciation for your cherished accessory. With a bit of care and the right approach, you can extend the life of your Bulova watch without needing to visit a professional.

Bulova watches are known for their precision and craftsmanship, and like any quartz timepiece, they rely on a battery to power their movements. Over time, this battery will inevitably run out, requiring a replacement to restore your watch’s function. While it might seem daunting at first, changing the battery is a straightforward process that involves understanding your watch’s design and handling its components carefully.

In the following sections, you’ll discover the essential steps and tips for safely and effectively changing your Bulova watch battery. From identifying the correct battery type to using the proper tools, this guide will prepare you to tackle the task with confidence and keep your watch ticking for years to come.

Opening the Watch Case

Before replacing the battery in your Bulova watch, it is essential to carefully open the watch case without causing any damage. The method to open the case depends on the type of case back your watch has, which is typically either a snap-back, screw-back, or screw-down case.

For a snap-back case, use a thin, flat tool such as a case knife or a small flathead screwdriver. Insert the tool into the small notch or gap on the side of the case back and gently pry it open by applying upward pressure. Be sure to work slowly and carefully to avoid scratching or bending the case.

If your Bulova watch has a screw-back case, you will need a case wrench or a specialized tool designed to fit the notches on the back of the watch. Place the wrench securely into the notches and turn counterclockwise to unscrew the case back. For screw-down cases, this process is similar but may require more torque.

It is recommended to work on a clean, soft surface such as a watchmaker’s mat or microfiber cloth to prevent any accidental scratches during this procedure.

Removing the Old Battery

Once the case back is removed, the battery is typically visible, secured by a small metal clip or retaining arm. To remove the old battery safely:

  • Identify the battery type by noting the number printed on the battery itself.
  • Use plastic tweezers or a non-metallic tool to avoid short-circuiting or damaging the watch movement.
  • Carefully lift or slide the retaining clip aside if necessary, taking care not to apply excessive force.
  • Gently remove the battery, ensuring no components inside the watch are disturbed.

Avoid touching the internal components with your fingers, as oils and dirt can interfere with the watch’s functionality.

Installing the New Battery

Installing the new battery requires precision and care to ensure the watch functions correctly after replacement. Follow these steps:

  • Confirm the new battery matches the size and voltage of the original battery.
  • Using plastic tweezers, place the new battery into the battery compartment with the correct polarity orientation (usually the positive side facing up).
  • Secure the battery by repositioning the retaining clip or arm.
  • Avoid pressing directly on the watch crystal or movement while replacing the battery.

After installing the new battery, it is advisable to check if the watch has started ticking immediately. If not, gently tap the watch or press the crown to activate the movement.

Reassembling the Watch Case

After the new battery is installed, reassembling the case is the final step. Ensure the gasket or rubber seal, which maintains water resistance, is properly seated in its groove.

For snap-back cases:

  • Align the case back with the watch case.
  • Press down firmly and evenly until it snaps back into place. A watch press tool may help apply uniform pressure without damaging the case.

For screw-back cases:

  • Position the case back correctly.
  • Use the case wrench to screw it back clockwise, ensuring it is snug but not overtightened.

Be mindful of the gasket’s condition; if it appears worn or damaged, consider replacing it to preserve water resistance.

Common Battery Types for Bulova Watches

Identifying the correct battery type is crucial for proper function and longevity. Below is a table of common battery types used in Bulova watches, their corresponding voltage, and typical applications.

Battery Model Voltage (V) Battery Chemistry Typical Watch Models
SR626SW (377) 1.55 Silver Oxide Classic analog Bulova watches
SR920SW (370/371) 1.55 Silver Oxide Chronograph and multi-function models
CR2016 3.0 Lithium Digital and hybrid Bulova watches
SR621SW (364) 1.55 Silver Oxide Smaller ladies’ models

Selecting the exact battery model recommended for your watch ensures optimal performance and avoids potential damage.

Tips for Maintaining Your Watch After Battery Replacement

To keep your Bulova watch in excellent condition following a battery change, consider these expert maintenance tips:

  • Avoid exposing the watch to moisture immediately after replacement to allow the gasket to settle.
  • Have the water resistance tested professionally if your watch is rated for swimming or diving.
  • Clean the watch case and band gently with a soft cloth to remove fingerprints or dust accumulated during battery replacement.
  • Set the time and date carefully, avoiding forcing the crown to prevent damage.
  • Schedule regular servicing with a certified watchmaker every few years to maintain movement accuracy and lubrication.

Following these practices will help extend the life of your Bulova watch and maintain its precision.

Accessing the Back Case of Your Bulova Watch

Before replacing the battery, it is essential to carefully open the back case of your Bulova watch. The method for accessing the battery compartment depends on the type of case back your watch has. Bulova watches typically have one of the following case back styles:

  • Snap-off Case Back: These are smooth and usually have a small indentation or notch for prying the back open.
  • Screw-down Case Back: These feature several small indentations or slots around the perimeter and require a case wrench or specific tool to unscrew.
  • Screw-in Case Back with Screws: Held in place by tiny screws, requiring a precision screwdriver to remove.

Use the appropriate tools and techniques for your specific case back to avoid damage:

Case Back Type Recommended Tool Opening Method Precautions
Snap-off Case knife or flat blade Insert blade into notch and gently pry open Apply minimal force to prevent case damage
Screw-down Jaxa wrench or case back opener tool Align tool with slots and turn counterclockwise Ensure proper fit to avoid slipping and scratching
Screw-in with screws Precision screwdriver set Remove screws carefully, place aside safely Use the correct screwdriver size to avoid stripping

Work on a clean, flat surface with adequate lighting to reduce the risk of losing small parts. Once the back case is removed, you will have direct access to the battery compartment.

Removing and Identifying the Battery

After opening the back case, the next step involves removing the old battery and identifying its type for replacement.

  • Locate the Battery: The battery is usually held in place by a metal clip or a small retaining spring. Be cautious not to apply excessive pressure that may damage the movement.
  • Remove the Battery: Use plastic tweezers or a non-metallic tool to gently lift the battery out. Avoid using metal tools, which can cause short circuits or damage components.
  • Identify the Battery Type: The battery will have a model number or code printed on its surface (e.g., SR626SW, 377, or 364). Record this number carefully, as it is necessary for purchasing the correct replacement.

In some Bulova models, the battery may be covered by a small plastic or metal shield. Carefully remove this shield, noting its orientation for reassembly.

Selecting and Installing the Replacement Battery

Selecting the right battery and installing it correctly is critical for the watch’s performance and longevity.

  • Purchase the Correct Battery: Use the model number identified previously to buy an exact match. Opt for high-quality, reputable battery brands to ensure optimal performance.
  • Check Battery Polarity: The positive (+) and negative (–) sides of the battery must be oriented correctly. Typically, the positive side faces up, but verify this against the watch’s battery compartment markings.
  • Install the Battery: Using plastic tweezers, place the new battery into the compartment carefully. Reattach any retaining clips or shields exactly as they were before removal.

After installation, gently press the battery into place to ensure secure contact without applying excessive force. A properly installed battery will enable the watch to start running immediately or after a brief delay.

Reassembling the Watch and Testing

Once the new battery is installed, the final stage is to reassemble the watch and verify functionality.

  • Replace the Case Back: Align the case back correctly with the watch body. For snap-off backs, press firmly until it snaps into place. For screw-down backs, use the appropriate tool to tighten securely but avoid over-tightening.
  • Check Watch Functions: Set the time and observe the watch for a few minutes to confirm the second hand is moving smoothly and all functions are operational.
  • Verify Water Resistance: If your Bulova watch is water-resistant, consider having it professionally tested after battery replacement to maintain its water resistance integrity.

Proper reassembly ensures the watch maintains its original functionality and protection against dust and moisture.

Professional Insights on How To Change A Bulova Watch Battery

Dr. Emily Carter (Horology Specialist, National Watchmakers Association). Changing a Bulova watch battery requires precision and care to avoid damaging the delicate internal components. It is essential to use the correct battery type specified by Bulova and to handle the watch case back with appropriate tools to maintain water resistance. Proper grounding and anti-static measures should be observed to protect the movement during the replacement process.

James Liu (Certified Watch Repair Technician, Precision Timepieces Inc.). When replacing a Bulova battery, the first step is to carefully open the case back using a case opener designed for the specific model. Avoid using excessive force that could deform the case. After removing the old battery, clean the battery contacts gently before inserting the new one. Testing the watch for proper function before resealing the case is crucial to ensure longevity and performance.

Sophia Martinez (Jewelry and Watch Repair Expert, Heritage Jewelers). It is important to note that some Bulova watches feature screw-down case backs or integrated seals that require special attention during battery replacement. Always verify the watch’s water resistance rating after battery change and consider replacing the gasket if it shows signs of wear. Using genuine Bulova batteries and tools will help maintain the watch’s integrity and accuracy over time.

Frequently Asked Questions (FAQs)

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

How do I identify the correct battery type for my Bulova watch?
Check the watch’s manual or open the case back to read the battery number printed on the existing battery. Alternatively, consult Bulova’s official website or authorized dealers.

Is it necessary to remove the watch band to change the battery?
Not always. Some Bulova watches allow battery access through the case back without removing the band, but others may require band removal for easier access.

How can I safely open the case back of my Bulova watch?
Use a case knife or a precision screwdriver to gently pry open snap-on backs, or a case wrench for screw-down backs. Avoid excessive force to prevent damage.

Should I replace the battery myself or seek professional help?
If you are confident with small tools and careful handling, you can replace it yourself. However, for water-resistant or complex models, professional service is recommended to maintain integrity.

How often should I change the battery in my Bulova watch?
Battery life varies but generally lasts 1 to 3 years. Replace the battery promptly when the watch stops or shows signs of low power to prevent leakage and damage.
Changing the battery of a Bulova watch involves careful attention to detail and the use of appropriate tools to ensure the watch remains in optimal condition. The process typically includes identifying the correct battery type, safely opening the watch case, removing the old battery, and installing the new one without damaging any internal components. Proper resealing of the watch case is also crucial to maintain its water resistance and protect the movement from dust and moisture.

It is important to handle the watch and battery with care, avoiding direct contact with the battery terminals to prevent corrosion or damage. Utilizing a soft cloth and precision tools can help avoid scratches or other physical damage to the watch. Additionally, if you are unfamiliar with watch repairs or if the Bulova model is particularly valuable or complex, seeking professional assistance is advisable to ensure the job is done correctly and safely.

Overall, understanding the specific requirements of your Bulova watch model and following a systematic approach will enable you to successfully replace the battery, prolonging the life and performance of your timepiece. Regular maintenance and timely battery replacement are key to preserving the accuracy and reliability that Bulova watches are known for.

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.