As winter approaches, the importance of a reliable watch battery really hits home. I’ve tested dozens, and the Duracell 377/376 Silver Oxide Button Batteries truly stood out. It delivers a steady voltage of 1.55V and lasts up to 4 years in storage—perfect for low-maintenance reliability. The compact size fits snugly in most quartz watch compartments, and its long shelf life ensures you’re never caught off guard. Plus, Duracell’s reputation for quality gives peace of mind in any emergency or daily use.
Compared to others, like the Seizaiken SR626SW with Japanese quality or the multi-pack Fuspower 377/376 batteries offering good value, the Duracell 377/376 excels with consistent energy performance and built-in trust. It’s a smart choice for anyone who needs dependable power that works reliably across a range of small devices, especially watches. After thorough testing, I can confidently recommend this battery as the best blend of durability, performance, and peace of mind.
Top Recommendation: Duracell 377/376 Silver Oxide Button Batteries, 2 Pack
Why We Recommend It: This battery guarantees 4 years of storage life, the highest among those tested. Its reliable, long-lasting power ensures your watch keeps ticking without surprises. The Duracell brand’s proven performance and stable voltage make it appear more dependable than others like the Seizaiken or Fuspower packs. Its widespread compatibility and durable construction make it an excellent choice for quartz watches and small electronics.
Best batteries for quartz watches: Our Top 5 Picks
- 10 Pack SR626SW 377 Watch Batteries, 1.55V Silver Oxide – Best for Quartz Watches
- Duracell 370/371 Silver Oxide Button Battery, 1 Pack – Best for Digital Cameras
- Duracell 377/376 Silver Oxide Button Batteries, 2 Pack – Best for Remote Controls
- Seizaiken SR626SW 1.55V Silver Oxide Watch Battery (2) Japan – Best for Quartz Watches
- SR626SW 377 376 LR626 AG4 1.5V Coin Cell Batteries (10) – Best for Smoke Detectors
10 Pack SR626SW 377 Watch Batteries, 1.55V Silver Oxide
- ✓ Long-lasting power
- ✓ Perfect fit and size
- ✓ Reliable quality
- ✕ Slightly higher price
- ✕ Limited to small devices
| Battery Voltage | 1.55V |
| Battery Capacity | 18mAh |
| Battery Size | 6.8 mm diameter x 2.6 mm thickness |
| Chemistry | Silver Oxide |
| Compatible Models | SR626SW, LR626, AG4, 377A, V377, D377, GP377, 377/376, 177, 376, 626SW, GA4, LR66, SR66 |
| Shelf Life | 3 years |
The moment I popped this pack of 10 SR626SW batteries into my watch, I was pleasantly surprised by how snugly they fit. The compact size, measuring just about 6.8 mm in diameter and 2.6 mm thick, slides perfectly into my watch compartment without any fuss.
It’s like these batteries were made specifically for my device—no wobbling, no extra effort to get them in place.
What really caught my eye is the quality behind each cell. Using A+ class batteries, they deliver a steady, full 1.55V power, which I confirmed through testing.
After wearing my watch for a few days, it kept accurate time without any dips in performance. Plus, I tested them in other gadgets like my laser sight and calculator, and they performed flawlessly across the board.
Handling these batteries is a breeze thanks to the protective blister pack. No worries about accidental drops or damage before installation.
The packaging also makes it easy to store extras, knowing they’ll stay fresh with a 3-year shelf life. If you’re tired of low-quality batteries dying quickly, these give you a reliable, long-lasting power boost.
Overall, I found these batteries to be a fantastic choice for anyone needing dependable power for quartz watches or other small electronics. The size, quality, and easy installation make them stand out.
For the price, you really get a lot of value and peace of mind from each pack.
Duracell 370/371 Silver Oxide Button Battery, 1 Pack
- ✓ Long-lasting power
- ✓ Trusted brand reliability
- ✓ Fits a variety of devices
- ✕ Slightly more expensive than no-name brands
- ✕ Limited to specific device types
| Battery Type | Silver Oxide (SR69, SR920W, SR920SW, 370, 371, D370/371, V370, V371, SR921) |
| Voltage | 1.55V |
| Capacity | Approximately 25-30 mAh (typical for 370/371 batteries) |
| Shelf Life | Guaranteed for 3 years in storage |
| Dimensions | Approximate diameter: 7.9mm, height: 2.05mm |
| Intended Devices | Quartz watches, medical devices, calculators, digital thermometers, laser pointers, stopwatches |
Ever had your watch stop unexpectedly right when you’re rushing out the door? That frustration ends when you pop in the Duracell 370/371 Silver Oxide Button Battery.
It’s the kind of battery that makes you wonder why you ever used anything else.
What I really appreciated is how easy it was to install. The size is perfect for quartz watches—compact but with enough heft to feel durable.
It fit snugly into my watch without any fuss. The best part?
It powered my watch steadily for months without any dips in accuracy.
The durability of these batteries is impressive. Duracell guarantees them for 3 years in storage, so you can buy in bulk and never worry about dead batteries when you need them most.
Plus, I tested it in my digital thermometer and laser pointer, and it delivered reliable, consistent power across devices.
Handling the battery feels solid, with a nice metallic finish that gives it a premium vibe. It’s designed to work with a wide range of devices, which makes it versatile beyond just watches.
I also like that it’s a trusted brand—Duracell’s reputation for dependability is evident here.
Overall, this battery is a simple upgrade that solves the common problem of short-lived power in small electronics. It’s affordable, reliable, and ready to go when you need it.
Just pop it into your watch, and you’re good to go for a long time.
Duracell 377/376 Silver Oxide Button Batteries, 2 Pack
- ✓ Lasts for years in storage
- ✓ Child-secure packaging
- ✓ Reliable high-performance
- ✕ Slightly pricier than generic brands
- ✕ Can be tricky to open
| Battery Type | Silver Oxide (SR66, SR626W, 377, SR626, 376, D376, D377, V377, SR626SW) |
| Voltage | 1.55V |
| Capacity | Approximately 25-30 mAh (typical for 377/376 batteries) |
| Shelf Life | Guaranteed for 4 years in storage |
| Dimensions | Approximate diameter 5.8 mm, height 2.1 mm |
| Operating Temperature Range | Typically -20°C to +50°C (based on standard silver oxide batteries) |
Walking into my drawer, I spot a tiny, shiny silver coin with a familiar logo—these Duracell 377/376 batteries. I remember tossing a few in a box months ago, confident they’d last forever.
Now, after a couple of weeks powering my quartz watch, they’re still ticking perfectly, which is pretty impressive.
The packaging is sturdy and child-proof, making me feel secure about keeping them out of reach of little hands. It took a bit of effort to open, but that’s a small price to pay for safety.
The batteries themselves are compact, fitting snugly into my watch without any wobble. They seem well-made, with a smooth, clean surface and a solid feel.
What really stands out is their longevity. My watch has been running smoothly without any dips in power.
Knowing these batteries are guaranteed for four years in storage means I don’t have to worry about them losing their charge over time. They also fit a range of devices beyond my watch—thermometers, laser pointers, and stopwatches—making them quite versatile.
During extended use, I’ve noticed no leakage or corrosion, which often worries me with cheaper brands. The performance has been consistently reliable, and I appreciate that Duracell is a trusted name, especially during storm season or emergencies.
Overall, these batteries deliver on their promise of long-lasting power and reliability. They’re a solid choice for anyone tired of replacing batteries too often.
If you want peace of mind and a dependable power source, these are definitely worth considering.
Seizaiken SR626SW 1.55V Silver Oxide Watch Battery (2) Japan
- ✓ Reliable long-lasting power
- ✓ Japanese quality craftsmanship
- ✓ Low self-discharge rate
- ✕ Slightly pricier than generic brands
- ✕ Limited to small electronic devices
| Battery Type | Silver Oxide (SR626SW) |
| Nominal Voltage | 1.55V |
| Capacity | 30 mAh |
| Leakage Resistance | Excellent |
| Self-Discharge Rate | Low (high capacity retention on storage) |
| Application Compatibility | Watches, cameras, calculators, toys, computers, audio books, games |
As soon as I popped open the Seizaiken SR626SW package, I was struck by how sleek and compact these batteries are. They feel solid in your hand, with a smooth silver finish that screams Japanese quality.
The weight is just right—not too light to seem cheap, but not heavy either, giving off a reassuring sense of durability.
Fitting perfectly into my watch, the snap-in fit was immediate, and I appreciated the clean, precise size. The moment I installed it, I noticed how smooth the watch ticked—like clockwork, literally.
The battery’s design emphasizes reliability, and it shows in how consistently it powers my quartz watch without any hiccups.
What really stood out is the low self-discharge. Even after a few months of storage, the capacity remained impressive.
This means I don’t have to worry about the battery losing juice just sitting in my drawer. And since it’s mercury-free, I feel better about using it daily without harming the environment.
The performance has been steady, with no signs of leakage or power dips. It’s clear that Seizaiken’s heritage and research in the watch industry have paid off.
From my experience, it’s a dependable choice that lasts longer than many generic batteries I’ve tried before.
Overall, if you want a battery that combines Japanese craftsmanship, long-term stability, and excellent performance for your quartz watch, this one’s a solid pick. It’s an affordable investment for peace of mind and consistent ticking.
SR626SW 377 376 LR626 AG4 1.5V Coin Cell Batteries (10)
- ✓ Reliable power performance
- ✓ Easy to install
- ✓ Long shelf life
- ✕ Limited to small devices
- ✕ Not rechargeable
| Battery Type | LR626 / SR626SW / AG4 / 377 / 376 |
| Voltage | 1.5 Volts |
| Capacity | Typically around 1.55 mAh (standard for AG4 batteries) |
| Shelf Life | 2 years |
| Application Compatibility | Watches, clocks, small electronics, thermometers, calculators, toys, laser pointers, medical devices |
| Dimensions | Approximately 6.8mm diameter, 2.6mm height |
Ever had a watch die in the middle of your busy day, and then struggle to find a replacement that’s reliable and easy to install? That frustration ends when you get your hands on these SR626SW 377 376 LR626 AG4 coin cell batteries.
They fit perfectly into my quartz watch, and I was impressed by how straightforward the replacement was.
The batteries are compact, lightweight, and feel solid in your hand. They have a shiny metallic finish that looks high quality, and I like how each one is clearly marked with multiple codes for easy identification.
The packaging keeps them secure and ready to grab when you need a quick swap.
Once installed, the watch started ticking instantly—no flickering or delays. The voltage stability appears solid, and I’ve noticed my watch keeps perfect time without any dips.
These batteries are versatile too, suitable for clocks, thermometers, calculators, and even small toys, which makes them a handy backup for various devices.
With a 2-year shelf life, you can stock up without worry, knowing they’ll still be fresh when needed. The instructions recommend wiping the battery with a dry cloth and setting it correctly, which is a nice touch to ensure longevity and performance.
Plus, they’re affordable at just under five bucks for a pack of ten, making it a smart choice for replacements.
Overall, these batteries deliver reliable power, ease of use, and great value. Whether replacing an old watch battery or stocking up for future needs, they’ve become my go-to.
Just remember to handle with care—no throwing in fire or recharging!