Learning how to change Bulova watch battery is a practical skill that can save you a trip to the jeweler. For a Bulova watch battery replacement, having the right tools is essential to access the compartment. This guide provides clear, step-by-step instructions for a safe and successful swap.
We will cover the tools you need, how to identify your watch’s case back, and the detailed process. You’ll also learn about battery types and important safety tips to protect your timepiece.
How To Change Bulova Watch Battery
Before you start, it’s crucial to gather all necessary materials. Working in a clean, well-lit area with a soft surface is also key. A simple mistake can scratch the watch or damage its internal mechanics.
Having everything at hand makes the process smoother and prevents you from handling the watch more than needed. Let’s look at the essential toolkit.
Essential Tools And Materials You Will Need
You cannot simply pry open a watch with household items. Using the correct tools prevents damage. Here is what you should prepare:
- A new watch battery: You must identify the correct type first (we’ll cover this next).
- A case opening tool: This varies by watch back type. A case wrench for screw-down backs, a precision flathead or case knife for snap-off backs, or a specialized Jaxa wrench for certain Bulova models.
- Precision screwdrivers: A set of small, high-quality screwdrivers for removing any screws in the case or movement holder.
- Plastic tweezers: Metal tweezers can cause a short circuit if they touch the battery and another metal component. Plastic is non-conductive.
- A magnifying glass or loupe: Helps you see small parts clearly.
- A soft cloth or watch mat: Provides a scratch-free surface to work on.
- A case holder (optional but helpful): Secures the watch while you work on it.
- A clean, dry workspace: Avoid areas with carpet, as static electricity can harm the watch movement.
Identifying The Correct Battery Type
Using the wrong battery can lead to poor performance or even damage. The battery type is usually printed on the old battery itself, a code like SR626SW or 364. If you don’t have the old battery, you have other options.
Check your watch’s user manual, as it often lists the battery specification. You can also search online using your Bulova’s model number, which is engraved on the case back. Finally, a reputable jeweler or watch shop can identify it for you.
Common Bulova watch batteries include SR626SW (also known as 377), SR621SW, and SR920SW. Always buy batteries from a trusted source to ensure quality and longevity.
Determining Your Bulova Watch Case Back Type
Bulova watches typically use one of three case back designs. Knowing which one you have determines the opening method. Incorrectly forcing a case back can cause permenant damage.
Snap-Off Or Press-On Case Back
This is a common style that simply presses onto the watch case. It often has a slight notch or indentation for a tool. You will need a case knife or a precision flathead screwdriver to carefully pry it open.
Screw-Down Case Back
This back has notches around its edge and screws directly onto the case. It requires a case wrench with adjustable pins that fit into these notches. You turn the wrench counter-clockwise to unscrew it.
Screw-Back With Mini Screws
Some watches have a solid back held in place by several tiny screws around the perimeter. You must use a precision screwdriver to remove each screw before lifting off the back.
Step By Step Battery Replacement Guide
Now, with your tools and new battery ready, you can begin the replacement process. Work slowly and methodically, keeping track of all small parts.
- Prepare Your Workspace: Lay down the soft cloth. Ensure you have good lighting. Place all your tools within easy reach.
- Open the Case Back: Based on your case back type, use the appropriate tool. For snap-off backs, insert your tool into the notch and gently twist to pop it open. For screw-down backs, adjust your case wrench to fit the notches snugly and turn counter-clockwise. For screw-backs, remove all screws carefully.
- Remove the Old Battery: Once the back is off, you’ll see the watch movement. The battery is usually held in place by a small metal clamp or sits in a plastic tray. Use your plastic tweezers to note the battery’s orientation (positive side up is typical). Gently release any clamp and lift the battery out.
- Insert the New Battery: Using your plastic tweezers, place the new battery in the exact same orientation as the old one. Ensure it is seated flat and securely. You should hear a faint click if a clamp snaps back over it.
- Check the Watch Function: Before closing the case, check if the watch is running. For analog watches, the second hand should start moving. For digital displays, they should light up. If it doesn’t work, double-check the battery orientation and that it’s fully seated.
- Close the Case Back: For snap-off backs, align the back and press firmly around the edges with your thumbs until it clicks into place. For screw-down backs, carefully align the threads and screw it on clockwise by hand first, then gently tighten with the case wrench. For screw-backs, replace all screws and tighten them evenly.
- Perform a Seal Check: If your watch is water-resistant, ensure the gasket (the small rubber ring) is clean, undamaged, and properly seated in its groove. A damaged gasket should be replaced to maintain water resistance.
Important Safety Tips And Precautions
Your watch is a precision instrument. Following these precautions will help you avoid common pitfalls and costly repairs.
- Always use plastic tweezers. Metal can create a short circuit.
- Never force any component. If something won’t budge, reassess your tool or method.
- Avoid touching the movement or battery contacts with your fingers. Skin oils can cause corrosion.
- Keep magnets away from the watch, as they can affect the timekeeping.
- If you encounter a complex movement or feel unsure, stop and consult a professional. It’s better to be safe.
- Dispose of the old battery properly at a designated recycling center.
When To Seek Professional Help
While many battery changes are straightforward, some situations warrant a visit to a watchmaker. Recognizing these scenarios can save your watch from harm.
If your watch is a high-value, antique, or complex Bulova model like an Accutron with a tuning fork movement, professional service is recommended. Also, if the case back is stuck, corroded, or shows signs of previous tampering, a pro has the right tools to open it safely.
If you open the case and see any signs of moisture, corrosion, or damage to the movement, a professional cleaning and assessment will be necessary. Finally, if you complete the battery change and the watch still doesn’t run, the issue may be with the movement itself, requiring expert repair.
Maintaining Your Bulova Watch Post-Battery Change
After a successful battery change, a few simple habits will keep your watch in top condition. Regular maintenance extends its life and ensures reliable performance.
Have the water resistance checked by a professional every time you change the battery, especially if you wear it near water. Wipe the case and crystal with a soft, dry cloth regularly to remove dirt and moisture. Also, store your watch in a cool, dry place away from direct sunlight and magnetic fields like speakers or fridge doors.
If you won’t be wearing the watch for an extended period, you can remove the battery to prevent potential leakage, though this is generally not necessary for modern batteries if the watch is stored properly.
Frequently Asked Questions
Here are answers to some common questions about Bulova watch battery replacement.
How Often Does A Bulova Watch Battery Need Replacement?
A typical Bulova watch battery lasts between 1 to 3 years, depending on the model and functions. A watch with extra features like a chronograph or backlight may consume more power.
Can A Dead Battery Damage My Watch?
Yes, an old battery can leak and cause corrosion inside the watch movement. This corrosion can lead to expensive repairs. It’s best to replace the battery as soon as the watch stops or shows signs of slowing down.
What Is The Average Cost To Change A Bulova Battery?
If done by a professional, the cost typically ranges from $10 to $30 for the service plus the battery. The price can be higher for specialized or vintage models. Doing it yourself costs only the price of the battery and tools.
How Do I Know If My Bulova Is Water Resistant After A Battery Change?
Water resistance is not guaranteed after a DIY battery change unless you specifically replace and test the gasket. For swimming or diving, have a professional reseal and pressure-test the watch to ensure its integrity.
Where Can I Buy Authentic Bulova Watch Batteries?
You can purchase high-quality batteries from watch supply stores, reputable online retailers, or directly from a Bulova service center. Avoid generic batteries from unknown brands, as their quality and lifespan can be inconsistent.