Learning how to replace battery in Bulova watch is a practical skill that can save you a trip to the jeweler. Bulova watches often have specific battery types; using the exact replacement is crucial for accurate timekeeping. With the right tools and careful attention, you can complete this task at home.
This guide provides clear, step-by-step instructions. We will cover everything from identifying your watch model to safely closing the case back.
How To Replace Battery In Bulova Watch
Replacing the battery yourself requires preparation. Rushing the process can lead to damage. Follow these preliminary steps to ensure a smooth and successful replacement.
Gather The Necessary Tools And Materials
Having the correct tools before you start is essential. You will need a few specialized items to open the watch and handle the small components safely.
- A set of precision screwdrivers.
- Case opening tools (a case knife or a multi-tool with case openers).
- Plastic tweezers for handling the battery and movement.
- A soft, clean cloth or a watch mat to work on.
- A magnifying glass or loupe for better visibility.
- The correct replacement battery.
Identify Your Bulova Watch Model
Not all Bulova watches open the same way. The model determines the case back type and the battery you need. You can usually find the model number on the case back.
Look for a series of numbers and letters engraved on the back. If it’s not there, check the warranty card or original box. Knowing the model helps you find technical details and confirm the battery type.
Common Bulova Case Back Types
Bulova typically uses three main types of case backs. Identifying yours is the first physical step.
- Snap-off Back: A smooth, solid back that pries off.
- Screw-down Back: Has notches or indentations for a case wrench.
- Screwed Back: Held in place by small screws around the perimeter.
Determine The Correct Battery Type
Using the wrong battery can harm your watch’s movement. The battery type is usually printed on the old battery itself. If you cannot access it yet, use your watch model number to search online or consult a battery compatibility chart.
Common batteries for Bulova watches include SR626SW, SR621SW, and SR920SW. Always double-check for your specific model to ensure compatibility and voltage match.
Create A Clean And Organized Workspace
A tidy, well-lit area prevents accidents and lost parts. Clear a table and lay down a soft cloth to protect the watch crystal and case from scratches. Keep your tools organized and within reach.
Ensure you have good lighting overhead. A small dish or container can be useful for holding tiny screws so they don’t get lost during the process.
Step-By-Step Battery Replacement Process
Now that you are prepared, you can begin the replacement. Work slowly and methodically. Patience is key to avoiding costly mistakes.
Step 1: Open The Watch Case Back
The method depends on your case back type. Apply gentle, even pressure to avoid marring the metal.
- For Snap-off Backs: Insert a case knife into the small groove. Gently twist to pry the back open. Work your way around the edge.
- For Screw-down Backs: Use a case wrench that fits the notches. Turn counter-clockwise to unscrew it. Apply steady pressure to avoid slipping.
- For Screwed Backs: Use a precision screwdriver to remove each small screw. Place them immediately in your container.
Step 2: Locate And Remove The Old Battery
Once the case back is off, you’ll see the watch movement. The battery is usually held in place by a small metal clamp.
- Carefully note the orientation of the battery. The positive (+) side is typically facing up.
- Use plastic tweezers to gently release the battery clamp if present. Some just require a light push to the side.
- Lift the old battery out with the tweezers. Avoid using metal tools directly on the battery or movement to prevent shorts.
Handling The Movement And Gaskets
While the back is open, take a moment to inspect the rubber gasket. This ring seals the watch against moisture. If it looks cracked or brittle, it should be replaced to maintain water resistance. Avoid touching the movement coils and gears with your fingers.
Step 3: Insert The New Battery
This step requires a steady hand. Ensure the new battery is clean and free of fingerprints before installation.
- With your plastic tweezers, pick up the new battery by its edges.
- Place it into the battery compartment in the exact same orientation as the old one. The positive side should match the marking in the compartment.
- Secure the battery clamp back over it, ensuring it snaps or clicks into place firmly.
Step 4: Check The Watch Functionality
Before resealing the case, verify the watch is working. Gently nudge the watch to see if the second hand begins to move. For some models, you may need to pull the crown out and push it back in to restart the movement.
If the watch does not start, double-check the battery orientation and that it is seated properly. Ensure the battery clamp is not obstructing the contact.
Step 5: Reseal The Watch Case
Closing the watch properly is as important as opening it. It protects the movement from dust and moisture.
- If your watch has a gasket, ensure it is seated correctly in its groove.
- Align the case back properly. For screw-down backs, line up the threads carefully.
- For snap-off backs, place it evenly and apply firm, even pressure with your palm or a case press tool until it clicks shut.
- For screwed backs, replace and tighten each screw securely but do not overtighten.
Post-Replacement Checks And Maintenance
After the battery is replaced, a few final checks will ensure your watch runs well for years to come. Proper maintenance extends the life of both the timepiece and its new power source.
Verify Timekeeping And Functions
Set the time and date on your watch. Observe it over the next 24-48 hours to ensure it keeps accurate time. Test any additional functions like a chronograph or calendar to confirm they operate correctly.
If you notice the second hand moving in two-second jumps, this could indicate a low battery or an issue with the movement’s power save feature. Refer to your manual.
Consider Professional Water Resistance Testing
If your Bulova is designed for water resistance, having it pressure tested by a professional after a battery change is a good idea. Opening the case can compromise the seal, even with a new gasket. This test confirms the watch is still sealed against moisture and dust.
Proper Disposal Of The Old Battery
Watch batteries contain metals that should not be thrown in regular household trash. Take your old battery to a designated battery recycling center or drop it off at a jeweler or electronics store that offers recycling services. This is an important step for environmental responsibility.
Troubleshooting Common Issues
Sometimes, things don’t go perfectly on the first try. Here are solutions to common problems encountered during a battery replacement.
Watch Still Does Not Work After New Battery
If the watch remains dead, there are a few things to check. First, verify the battery voltage with a multimeter to ensure it’s fresh. Second, inspect the battery compartment for any corrosion from the old battery. Clean it gently with a cotton swab if needed.
Ensure the battery contacts are not bent and are making a good connection. If the watch still fails to work, there may be an issue with the movement itself that requires professional service.
Difficulty Closing The Case Back
Never force the case back. If it won’t close easily, stop and reassess. Check that the gasket is not pinched or out of place. For screw-down backs, ensure you are not cross-threading. Start the threads by turning counter-clockwise first until you feel a slight click, then turn clockwise to screw it down.
Minor Scratches On The Case Back
To minimize scratches, always use the correct tool size and apply tape to the case back edges before using a wrench or knife. If minor scratches occur, they can often be polished out with a fine-grade polishing cloth designed for watches.
Frequently Asked Questions
Here are answers to some common questions about replacing a Bulova watch battery.
How Often Should I Replace My Bulova Watch Battery?
A typical Bulova watch battery lasts between 1 to 3 years. Factors like battery type, watch functions, and temperature can affect lifespan. It’s a good idea to replace it as soon as you notice the second hand moving in intervals or the watch stopping.
Can I Replace A Bulova Watch Battery Myself?
Yes, you can replace it yourself if you have the correct tools, battery, and follow careful instructions. However, if your watch is a high-value model, is water-resistant, or has a complex movement, seeking professional help is recommended to maintain its integrity and warranty.
What Is The Cost To Replace A Battery In A Bulova Watch?
The cost varies. Doing it yourself costs only the price of the battery, usually $5-$10. A jeweler or watch repair shop typically charges between $15 and $50, which often includes a new gasket and a pressure test for water-resistant models.
Where Can I Buy A Replacement Battery For My Bulova?
You can purchase them from watch supply stores, major online retailers, or local jewelers. Always have your watch model number or old battery code ready to ensure you get the correct type. Some brands like Renata or Energizer are reliable choices.
Will Replacing The Battery Myself Void My Warranty?
If your Bulova watch is still under its original warranty, opening the case back yourself will likely void the warranty. For watches under warranty, always use an authorized Bulova service center for the battery replacement to keep the coverage valid.