How to Replace a Movado Watch Battery

First: Is It Really the Battery?

Aiman Moner, our watch repair professional with 35+ years experience, checks these signs before opening anything. 

Quick Test: Pull the crown out to stop the watch, wait 30 seconds, push it back in. If nothing moves at all, the battery is almost certainly done. 

Which Battery Does a Movado Take?

Movado does not use one single battery. It depends on the model, the movement inside, and whether the watch has extra functions like a chronograph. According to Aiman Moner, the only 100% reliable way to know is to open the watch and read the code printed on the old cell. Common sizes found in Movado and Movado Group watches: 

Three things to get right:

1. Buy silver-oxide, not alkaline: Silver-oxide, the “SR” code, holds a steady 1.55 volts until the end. Alkaline “LR’ equivalents drop off slowly and make the watch run poorly. 
2. Buy a fresh, brand-name cell: Renata, Energizer, Sony/Murata, and Maxell are the safe picks. A button cell sitting in a drawer for 3 years is already half-died. 
3. Match the code exactly: A battery that is one size off can rattle, short out, or refuse to make contact. 

Tools You Need

You don’t need a full watchmaker’s bench, but you do need the right few items, says Aiman Moner. Prying a Movado open with a kitchen knife is the single most common way people ruin one. 

Essential Tools

• Case knife or case-back pry tool for snap-off backs. 
• Adjustable case wrench / three-prong opener (for screw-down backs).
• Plastic or non-magnetic tweezers. 
• Lint-free microfiber cloth. 
• Correct replacement silver-oxide battery. 

Strongly Recommended

• Rubber ball or rubber jar opener (grips a tight screw-down back without scratching it).
• Case-back press (for snapping the back on evenly; thumbs alone often crack crystals).
• Watch case holder. 
• Finger cots or nitrile gloves (skin oils corrode contacts).
• Loupe or magnifier. 
• Small soft brush and a fresh gasket, if the old one looks flat or cracked.

Never touch the new battery with bare fingers. Oil from your skin creates a film that drains the cell and corrodes the contact spring, explains Moner. 

Step-by-Step: How to Replace a Movado Watch Battery

Set aside 20 to 30 minutes. Work on a clean, light-colored towel on a flat table so tiny screws and springs don’t vanish. 

Step 1: Set up and identify your case back

Wipe the watch clean and flip it over. Look closely at the back:

• Smooth edge with a small notch or lip: Snap off (pressure) back. Go to step 2A. 
• Notches, slots or flat cut edges around the rim: Screw-down-back. Go to step 2B. 
• Four to six tiny screws around the edge: Unscrew each one with a matching precision screwdriver, keeping them together in a dish. 

If the back is completely smooth with no notch at all, stop. Some sealed models are made to be opened only from the front by a watchmaker.

Step 2A: Open a snap-off back

1. Place the watch in a holder or hold it firmly, face down on the cloth. 
2. Find the small notch or slight lip in the rim. 
3. Seat the blade of the case knife in that notch at a low angle. 
4. Twist the handle gently; don’t lever hard. The back should pop off with a click. 
5. If it won’t budge, reposition slightly and try again rather than adding force. 

Step 2B: Open a screw-down back

1. Try the rubber-ball method first: Press a rubber ball or rubber jar opener flat against the back and turn counterclockwise. This works and leaves zero marks. 
2. If that fails, fit an adjustable case wrench so its prongs sit fully in the notches with no wobble. 
3. Apply firm, straight downward pressure while turning counterclockwise. Slipping is what causes those ugly gouges people complain about. 
4. Unscrew the rest of the way by hand and lift the back straight up. 

Step 3: Note how everything sits

Before you touch anything, take a clear photo with your phone. You want a record of:

• Which way the battery faces (the “+” marking is almost always up)
• Where the retaining clip, tab, or screw sits. 
• The position of the rubber gasket in the case groove. 

This one photo saves most people a lot of guessing later.

Step 4: Release and remove the old battery

Movado movements hold the battery one of three ways:

• Spring Clip: Slide it sideways or lift it gently with tweezers
• Small screw and tab: Loosen the screw about half a turn, then swing the tab clear. Don’t remove the screw fully; it is easy to lose. 
• Snap tab: Press the tab away from the battery with a plastic tool.

Lift the old cell out with plastic tweezers. Read the code stamped on its face and write it down. That code is your exact replacement. 

Step 5: Clean the contacts

Look at the battery seat and the contact spring under a magnifier. If you see white powder, green crust, or a dull film, clean it with a cotton swab lightly dampened with isopropyl alcohol, then let it dry fully. Corroded contacts are why some watches die again a month after a battery change.

Step 6: Fit the new battery

1. Handle the new cell with plastic tweezers only. 
2. Wipe both faces with a dry lint-free cloth. 
3. Drop it into the seat with the “+” side facing up (matching your photo).
4. Press it down until it sits flat. 
5. Re-seat the clip, tab, or screw so it holds the cell firmly. Snug, not overtightened. 

The second hand should start moving within a few seconds. 

Step 7: Reset the movement if it does not start

Some quartz movements need a reset after a battery swap. Find the small contact point marked AC or a bare metal pad next to the battery. Bridge it to the positive side of the battery for 2 to 3 seconds using metal tweezers or a piece of thin wire. The watch should jump to life. If it still refuses to run with a known-good new battery, the problem is the movement, not the cell. Take the watch to a watchmaker.

Step 8: Check the Gasket

Lift out the rubber O-ring gasket and inspect it:

• Cracked, flattened, stretched, or brittle: replace it. 
• Good condition: Wipe it clean and apply a very thin film of silicone grease.

Seat it back in its groove with no twists. A dry or damaged gasket means your “water-resistant” watch is no longer water-resistant. 

Step 9: Close the Case

Snap-off back: Line up the back so any engraving is upright, then press it down in a case press with slow, even pressure until it clicks. If you press by hand, push straight down with your thumb on opposite edges; never rock it.

Screw-down back: Thread it by hand first to avoid cross-threading, then tighten with the wrench until it is firm. Don’t crank on it.

Step 10: Set the time and test

Pull the crown out, set the time and date, and push it back in fully (screw it down if your model has a screw-down crown). Then leave the watch face-up for 24 hours and check it against your phone. A healthy quartz Movado should be within a few seconds.

What it Costs

A higher price usually buys more than a battery: cleaning, a new gasket, resealing, a water-resistance, pressure test, and a warranty on the work. 

Should You DIY it?

Movado’s official position: Don’t change the battery yourself. The brand recommends taking or sending the watch to an Authorized Service Center, which also disposes of the old cell properly. That’s real advice worth weighting, not just legal cover. Here is how to decide.

DIY is reasonable if:

• The watch is an everyday Bold or a basic quartz model. 
• It is out of warranty. 
• You never swim or shower with it. 
• You already own the right tools and are comfortable with small parts. 

Take it to a pro if:

• The watch is still under warranty; opening it yourself voids it. 
• It is a Museum Classic, an 1881, a Red Label, or any high-value or sentimental piece. 
• You rely on its water resistance. 
• The case back is smooth with no notch, or it is a chronograph with multiple hands to reset. 
• The back won’t open with reasonable effort. 

If you feel yourself pushing hard on a tool, stop. A slipped case knife scratches the case back, cracks the crystal, or slices your hand. A $25 shop visit is cheaper than a repair.

Common Mistakes to Avoid

1. Using a knife or screwdriver: The number one cause of grouped Movado case backs. 
2. Touching the battery with bare fingers: Shortens life and corrodes contacts. 
3. Using an alkaline LR cell instead of silver-oxide SR: The watch will run, then get erratic within months. 
4. Reusing a dead gasket: Water resistance is gone, and you won’t know until moisture appears under the crystal, says Moner. 
5. Snapping the back on with your thumbs at an angle: This is how crystals crack.
6. Overtightening a screw-down back: It crushes the gasket and can strip the threads. 
7. Skipping the AC reset: People assume the new battery is bad when the movement just needs a nudge. 
8. Leaving a dead battery in for months: Old cells leak and can destroy the movement, far more expensive than a battery.

Final Words: Insights From Aiman Moner

Replacing a Movado watch battery is a simple job: open the back the right way for your case type, swap in a fresh silver-oxide cell of the exact same code, handle it only with plastic tweezers, and take care of the gasket, and close the case evenly, advises Aiman Moner. 

Do it yourself if the watch is an everyday quartz model, out of warranty, and you have proper tools. Hand it to an Authorized Service Center or a trusted watchmaker if it is valuable, still under warranty, or if you need its water resistance to actually work. Either way, don’t leave a dead battery sitting in the case; that’s the one choice that turns a $5 fix into a real repair bill.

Frequently Asked Questions (FAQs)

How long does a Movado watch battery last?

About 18 to 36 months under normal use. Chronographs and models with extra functions run through batteries faster.

What battery does a Movado watch use?

A 1.55V silver-oxide button cell. The exact size depends on the model. SR621SW (364), SR920SW (371), SR626SW (377), and SR927W (395) are all common. Open the case and read the code on the old cell to be certain.

Why is my Movado second hand jumping every 4 seconds?

That is Movado’s built-in end-of-life indicator. The battery is nearly exhausted. Replace it soon so it does not leak.

Does changing the battery void my Movado warranty?

Opening the watch yourself or using an unauthorized repairer can void the warranty. If your watch is still covered, go through ChronoStreet, a professional repair service.

My Movado has a smooth case back with no notch. How do I open it?

Some sealed cases are designed to be opened only from the front, after the crystal and movement are removed. Do not try to force the back. Take it to a watchmaker.

I put in a new battery and the watch still will not run. What now?

First try the AC reset. Bridge the AC pad to the positive side of the battery for two to three seconds. Also confirm the new cell is fresh and the contacts are clean. If it still does not run, the movement needs service.