If your Breitling quartz has stopped, the seconds hand skips in four-second jumps, or the date no longer advances, the battery is likely dead. You can replace it yourself if you have the right tools and a matching battery, and if the watch is a simple three-hand model without a chronograph or heavy water rating. For chronographs, high-depth-rated models (100 m+), or Aerospace/Emergency watches with digital displays, hand the job to a watchmaker to protect water resistance and the movement.
What You Need Before Opening the Watch
Battery type. Breitling quartz watches most often use these cells:
| Battery Model | Equivalent | Common Breitling Models |
|---|---|---|
| Renata 364 | SR621SW | Lady J, smaller Colt |
| Renata 371 | SR920SW | Chronospace, Aerospace |
| Renata 373 | SR916SW | Cockpit, Professional |
| Renata 377 | SR626SW | Colt Quartz, Superocean Heritage quartz |
Don’t guess. Open the case back first, read the number stamped on the old battery, and buy that exact model. A slightly thicker or thinner cell can force the movement out of alignment or prevent the case back from sealing.
Tools required:
- Case-back wrench or adjustable opener (Breitling case backs are often torqued from the factory)
- Small flathead screwdriver or plastic pry tool for the battery clamp
- Tweezers, preferably plastic-tipped to avoid shorting the cell
- Replacement case-back gasket if the original looks flattened, cracked, or has hardened
- Silicone grease (a tiny amount for the gasket)
Work area. Place a soft cloth or watch mat on your table. Remove rings, bracelets, or other watches that could scratch the Breitling case. Work under bright light so you can clearly see the movement parts and the gasket.
Step-by-Step Battery Replacement
1. Open the Case Back
Most Breitling quartz models have a screw-down case back with notches or a hex pattern. Place the watch in the case-back wrench with the crystal facing down into the padded holder. Turn counterclockwise. If the back is very tight, apply steady, even pressure — do not jerk or you can slip and scratch the lugs.
Stop signal: If the case back does not budge after reasonable effort, stop. Overtorqued or corroded case backs are a common failure point. A watchmaker has a specialty vice and penetrating oil to remove it without damage. Prying or using pliers will mar the case.
2. Remove the Old Battery
With the case back off, you’ll see the movement held by a plastic movement ring or a metal clamp. The battery sits in a tray, usually secured by a small metal spring clip or a plastic locking arm.
Use tweezers to gently lift the clip or slide the locking arm aside. The battery should lift out freely. Do not pry against the movement circuit board — you can damage the coil or the integrated circuit.
Where people get stuck: The battery may be stuck to the contact spring because of dried electrolyte from a leaking old cell. Look for white, green, or brown crust around the battery or on the movement contact. If you see that, stop immediately. Leaked battery acid corrodes the movement contacts. Installing a fresh battery on top of corrosion will fail quickly and may ruin the movement entirely. That watch needs professional cleaning and likely a new movement.
3. Insert the New Battery
Check the polarity marking inside the battery tray — most Breitling movements have a small “+” or “–” near the contact. Align the new battery with the same orientation. Drop it into the tray, then press the spring clip or locking arm back into place. The battery must sit flat and not rock.
Use plastic-tipped tweezers or a toothpick to press the clip. Metal tweezers can short the battery against the case, draining it instantly and potentially damaging the movement.
4. Check the Movement Before Closing
Before you put the case back on, verify the watch runs. Look at the balance wheel or the stepping motor — you should see the seconds hand begin to move within a few seconds. If it doesn’t, the battery may be seated wrong, the contact may be bent, or the movement may have a separate fault.
Success check: Set the time to 10:10 (a position where the hands don’t overlap the date window) and advance the crown to confirm the date changes cleanly at midnight. If the date sticks or the hands drag, the movement may need service — a fresh battery won’t fix it.
5. Inspect and Reinstall the Gasket
The rubber gasket is the only thing keeping moisture out. Remove it gently with tweezers and inspect it under good light. If it’s cracked, flattened, or feels hard and brittle, replace it. If it looks pliable and round, wipe it clean and apply a microscopic layer of silicone grease — just enough to make it shine, not so much that it squeezes out when the case back tightens.
Place the gasket into the groove on the case back (or inside the case, depending on your model). Seat it evenly with your fingertip. A mis-seated gasket is the #1 cause of fogging after a battery change.
6. Close and Torque the Case Back
Screw the case back on clockwise. Hand-tighten until it stops, then give it a firm quarter-turn with the wrench. Do not overtighten — you can strip the threads or stress the crystal. Breitling factory spec is typically around 2.5–3.0 Nm, which feels like “snug plus a little more” by hand with a proper wrench.
Escalation signal: If the case back does not thread smoothly or you feel resistance before it is fully seated, stop immediately. Cross-threading a Breitling case back is expensive to repair. Back off, realign, and try again. If it still refuses to seat, take it to a watchmaker.
When You Should Not Do This Yourself
These Breitling models carry extra risk with a DIY battery change:
- Chronographs with pushers. The pusher seals and chronograph module add complexity. Water resistance is often compromised if the case back torque isn’t exact.
- Superocean or Avenger models with 500 m+ ratings. These use compression gasket systems very sensitive to seating and torque.
- Aerospace or Emergency models. Digital displays and extra electronics make the movement more fragile, and the battery compartment may have additional contacts for the LCD.
- Any watch not serviced in 5+ years. The gasket is likely dried out, and the movement may have internal wear that a fresh battery won’t fix.
For those cases, expect to pay $50–$100 at an independent watchmaker or $100–$150 at a Breitling service center. That cost typically includes a new gasket, pressure testing, and a movement check.
FAQ
How often should I replace a Breitling quartz battery?
Every 2–3 years, or as soon as the watch stops. Leaving a dead battery inside risks leakage that can destroy the movement.
Will replacing the battery void my Breitling warranty?
If the watch is still under factory warranty (typically 2–5 years), any non-authorized service can void it. Have the first battery change done by an authorized dealer.
My Breitling still runs but the seconds hand jumps in 4-second increments. Is that a battery issue?
Yes. That is the end-of-life indicator on many Breitling quartz movements. It means voltage is low, and replacement is due soon.
Can I use a generic battery instead of Renata?
Yes, as long as the chemistry and dimensions match. Energizer 364, 371, 373, and 377 equivalents work fine. Avoid no-name cells from discount stores — they leak more often.
The We Know Watches editorial team brings together over 40 years of combined watch collecting, trading, and repair experience. Our editors have owned and handled watches from every major brand — from entry-level Seiko 5s to Rolex, Omega, Patek Philippe, and independent Swiss watchmakers. We’ve bought and sold at auction, worked with authorized dealers, visited manufacturing facilities in Switzerland and Japan, and serviced hundreds of movements ranging from the Seiko 7S26 to the Longines L888. Every guide and review we publish is based on hands-on experience, original research, and consultation with professional watchmakers. We do not accept payment for reviews, and we clearly disclose when we use affiliate links.