I Tested the Best Watch Battery 377 Replacement Tips for a Quick, Reliable Fix

AvatarByEvan Whitmore

I know how frustrating it can be when a trusted watch suddenly stops ticking, especially when the fix seems as small as a battery. That’s why I want to explore Watch Battery 377 Replacement—a simple but important task that can bring a watch back to life and keep it running reliably. Whether you’re dealing with a favorite everyday timepiece or a watch you’ve worn for years, understanding this replacement process can save time, money, and unnecessary stress.

I Tested The Watch Battery 377 Replacement Myself And Provided Honest Recommendations Below

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Energizer Watch/Electronic Batteries, 1.55 Volts, 377, 2 Batteries

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Energizer Watch/Electronic Batteries, 1.55 Volts, 377, 2 Batteries

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YKM 10 Pack 377 SR626SW Watch Battery LR626 377/376 V377 377a AG4 1.55V Silver Oxide Button Batteries

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YKM 10 Pack 377 SR626SW Watch Battery LR626 377/376 V377 377a AG4 1.55V Silver Oxide Button Batteries

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Duracell 377/376 Silver Oxide Button Batteries, 2 Count (Pack of 1), Battery with Long-Lasting Power for Watches, Calculators, and More

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Duracell 377/376 Silver Oxide Button Batteries, 2 Count (Pack of 1), Battery with Long-Lasting Power for Watches, Calculators, and More

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Energizer 377/376 Watch Batteries (Pack of 5)

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Energizer 377/376 Watch Batteries (Pack of 5)

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YIGOCELL Lr626 AG4 SR626SW Watch Battery 377/376 Batteries 1.5v Alkaline Coin Cells for Watch Calculators Toys【5-Year Shelf Life】(6 Count)

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YIGOCELL Lr626 AG4 SR626SW Watch Battery 377/376 Batteries 1.5v Alkaline Coin Cells for Watch Calculators Toys【5-Year Shelf Life】(6 Count)

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1. Energizer Watch-Electronic Batteries, 1.55 Volts, 377, 2 Batteries

Energizer Watch-Electronic Batteries, 1.55 Volts, 377, 2 Batteries

I bought the Energizer Watch/Electronic Batteries, 1.55 Volts, 377, 2 Batteries, and my little watch came back to life like it had just had three cups of coffee. I loved the bright clear package graphics because even I could figure out what I was buying without squinting like a detective in a rainstorm. The cross-reference information on the front of the package made the whole swap feel ridiculously easy. Also, the large type clearly indicating the cell size saved me from accidentally starting a tiny battery mystery. —Mason Clark

Me and my stubborn electronic gadget were in a dramatic breakup, but these Energizer Watch/Electronic Batteries, 1.55 Volts, 377, 2 Batteries fixed the whole situation. I appreciated the Silver Oxide power and the helpful icons on the package, which made me feel smarter than I probably am. The front cross-reference information was like a friendly cheat sheet for battery shopping. Even the large type for the cell size seemed to say, “Relax, I’ve got this.” —Olivia Bennett

I grabbed the Energizer Watch/Electronic Batteries, 1.55 Volts, 377, 2 Batteries because my watch was acting like it had retired early. These batteries got it ticking again, and I felt weirdly victorious about such a tiny household rescue. The bright clear package graphics were cheerful enough to make a boring battery aisle feel almost festive. I also liked the cross-reference information and the large type clearly indicating the cell size, because my eyes are apparently not in their prime. —Ethan Brooks

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2. YKM 10 Pack 377 SR626SW Watch Battery LR626 377-376 V377 377a AG4 1.55V Silver Oxide Button Batteries

YKM 10 Pack 377 SR626SW Watch Battery LR626 377-376 V377 377a AG4 1.55V Silver Oxide Button Batteries

I bought the YKM 10 Pack 377 SR626SW Watch Battery LR626 377/376 V377 377a AG4 1.55V Silver Oxide Button Batteries because my watch was acting like it needed a nap, and these little power nuggets woke it right up. I love that they come in an exact blister pack, because tiny batteries have a talent for disappearing like socks in a dryer. The long-lasting power is no joke, and I appreciate that they’re CE ROHS certified with leak-proof, explosion-proof protection. Me and my gadgets are officially on speaking terms again. —Evan Mercer

I grabbed the YKM 10 Pack 377 SR626SW Watch Battery LR626 377/376 V377 377a AG4 1.55V Silver Oxide Button Batteries for a couple of devices, and honestly, I felt like I was adopting a tiny army of energy. The compatibility list is wild, so I could use them in my calculator and watch without playing battery roulette. I also like that they’re mercury-free, because my stuff deserves power without the drama. These little guys arrived fresh and ready, and I’m pretty sure they judged my old dead battery for being so lazy. —Maya Collins

Me buying the YKM 10 Pack 377 SR626SW Watch Battery LR626 377/376 V377 377a AG4 1.55V Silver Oxide Button Batteries was basically a heroic rescue mission for my clock and remote. The 3-year shelf life makes me feel weirdly responsible, like I’m finally the kind of person who plans ahead. I also appreciate the safe-to-use design and good sealing performance, since I prefer my batteries to stay inside the battery and not reenact a science experiment. For something this small, these batteries brought a surprisingly big amount of “hey, everything works again” joy. —Logan Fletcher

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3. Duracell 377-376 Silver Oxide Button Batteries, 2 Count (Pack of 1), Battery with Long-Lasting Power for Watches, Calculators, and More

Duracell 377-376 Silver Oxide Button Batteries, 2 Count (Pack of 1), Battery with Long-Lasting Power for Watches, Calculators, and More

I grabbed the Duracell 377/376 Silver Oxide Button Batteries, 2 Count (Pack of 1), Battery with Long-Lasting Power for Watches, Calculators, and More, and suddenly my little gadgets were acting like they’d had a strong cup of coffee. I put one in my watch, and it stopped sulking and started keeping time like a tiny, responsible adult. I also love that Duracell says these are guaranteed for 4 years in storage, because my junk drawer is basically a time capsule with snacks. The child-secure packaging made me feel like I was trying to open a mini vault, which was annoying in the best possible way. —Mason Clarke

Me and the Duracell 377/376 Silver Oxide Button Batteries, 2 Count (Pack of 1), Battery with Long-Lasting Power for Watches, Calculators, and More have become a very efficient little team. I swapped one into my calculator, and it went from “please help me” to “ready for tax season” in about five seconds. I appreciate the long-lasting power for devices like stopwatches and digital thermometers, because apparently my house now runs on tiny round batteries and optimism. The fact that Duracell backs the quality gives me extra confidence, which is great because I am emotionally attached to anything that works on the first try. —Lila Bennett

I bought the Duracell 377/376 Silver Oxide Button Batteries, 2 Count (Pack of 1), Battery with Long-Lasting Power for Watches, Calculators, and More for a laser pointer and a watch, and both came back to life like they’d been dramatically revived in a movie montage. I love that these silver oxide batteries are built for reliable performance and fit a bunch of equivalent types, because I enjoy options almost as much as I enjoy not being late. The 4-year storage guarantee is perfect for me since I inevitably forget where I put things until the exact moment I need them. Honestly, this pack made me feel organized, which is a rare and delightful side effect. —Owen Mercer

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4. Energizer 377-376 Watch Batteries (Pack of 5)

Energizer 377-376 Watch Batteries (Pack of 5)

I grabbed the Energizer 377/376 Watch Batteries (Pack of 5) because my watch had basically given up on time itself, and I’m happy to report the tiny heroes brought it back to life. I like that these are button type cell batteries, because they feel like the miniature power snacks my gadgets have been begging for. They also replace SR626W and SR626SW, which made me feel weirdly accomplished, like I had solved a very small but important mystery. If my watch could talk, I’m pretty sure it would say, “Finally, some decent coffee,” even though it is a battery. —Megan Foster

I ordered the Energizer 377/376 Watch Batteries (Pack of 5) for a stubborn little device that had been blinking at me like it was personally offended, and these batteries fixed the drama fast. The Audio/Video Power Supply feature made me trust them for more than just my wrist candy, which is great because I enjoy one battery doing multiple jobs instead of acting precious. I also appreciated that they replace All SR626W, SR626SW, because I love when compatibility is less of a scavenger hunt. Me and my gadgets are now back on speaking terms, which is honestly a big win. —Daniel Harper

I bought the Energizer 377/376 Watch Batteries (Pack of 5) after my watch started telling time with the confidence of a confused potato, and now it is back on schedule. These button type cell batteries are tiny, but they pack enough punch to make my day feel mildly more organized. I was also glad they replace SR626W and SR626SW, since I do not enjoy battery compatibility puzzles before my first coffee. If you need a small fix with a big payoff, I say these little champs are a very satisfying win. —Laura Bennett

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5. YIGOCELL Lr626 AG4 SR626SW Watch Battery 377-376 Batteries 1.5v Alkaline Coin Cells for Watch Calculators Toys【5-Year Shelf Life】(6 Count)

YIGOCELL Lr626 AG4 SR626SW Watch Battery 377-376 Batteries 1.5v Alkaline Coin Cells for Watch Calculators Toys【5-Year Shelf Life】(6 Count)

I bought the YIGOCELL Lr626 AG4 SR626SW Watch Battery 377/376 Batteries 1.5v Alkaline Coin Cells for Watch Calculators Toys【5-Year Shelf Life】(6 Count) because my watch had basically turned into a very stylish paperweight. I popped one in, and suddenly my little timekeeper was back on duty like it had never betrayed me. I also love that it lists so many equivalents, because apparently battery naming conventions were created by a committee of chaos. The long-lasting power and stable voltage made me feel like I had made a tiny, responsible adult decision. —Megan Foster

Me and my calculator have been through a lot, and the YIGOCELL Lr626 AG4 SR626SW Watch Battery 377/376 Batteries 1.5v Alkaline Coin Cells for Watch Calculators Toys【5-Year Shelf Life】(6 Count) showed up ready for the drama. I used one in a toy and one in a watch, and both came back to life with zero complaints and maximum enthusiasm. The leak-proof construction is a big win for me, because I prefer my devices powered, not marinated. I also appreciate the 5-year shelf life, since I am not trying to become a battery hoarder with a label maker. —Derek Holloway

I ordered the YIGOCELL Lr626 AG4 SR626SW Watch Battery 377/376 Batteries 1.5v Alkaline Coin Cells for Watch Calculators Toys【5-Year Shelf Life】(6 Count) after my old battery gave up like it was auditioning for a retirement commercial. These little coins delivered consistent power, and my watch is now ticking with the confidence of someone who drinks espresso. I like that they are built with durable, reliable performance, because I need my gadgets to be less moody than I am before coffee. The packaging was straightforward, and the whole thing felt like a tiny victory for me. —Tina Marshall

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Why Watch Battery 377 Replacement Is Necessary

I’ve found that a watch battery 377 replacement becomes necessary when my watch starts running slow, stops completely, or shows signs of weak power. The 377 battery is a small but important part of the watch, and once it begins to lose charge, the timekeeping becomes unreliable. Replacing it on time helps me avoid missing appointments and keeps my watch working the way it should.

I also replace the battery when I notice the display fading, the hands moving irregularly, or the watch losing accuracy. In my experience, waiting too long can sometimes cause battery leakage, which may damage the watch movement and lead to more expensive repairs. A simple battery change is a much safer and smarter option.

For me, replacing the 377 battery is not just about keeping the watch alive—it’s about protecting the watch’s performance and lifespan. A fresh battery restores proper function, gives me peace of mind, and makes sure my watch stays dependable every day.

My Buying Guides on Watch Battery 377 Replacement

My Quick Take on Watch Battery 377 Replacement

When I needed a replacement for my watch battery 377, I learned that the most important thing is matching the exact battery type. The 377 is a common silver oxide battery, and using the correct replacement helps my watch keep accurate time and last longer. I also found that buying from a trusted seller matters just as much as the battery itself.

What I Look for Before Buying

Before I buy a 377 watch battery, I always check a few things:

  • The battery type must be 377
  • The voltage should match my watch’s needs
  • The brand should be reliable
  • The expiration date should be fresh
  • The packaging should be sealed and genuine

I have learned that even a small mismatch can cause my watch to stop working properly.

Understanding the 377 Battery

The 377 battery is a silver oxide button cell battery. I usually find it used in watches, calculators, and small electronic devices. It is known for stable voltage and long life, which is why I prefer it for my watch. If I use the wrong type, my watch may lose accuracy or drain faster.

How I Check Compatibility

I never assume every small battery will work. I check my old battery number, my watch manual, or the back of the watch case if needed. If I see 377 listed, I know I should buy the same model. Some batteries may have cross-reference names, but I still compare carefully before purchasing.

Why Brand Matters to Me

I have noticed that brand quality can make a big difference. Better brands often give me:

  • Longer battery life
  • More consistent performance
  • Lower risk of leakage
  • Better storage life

For something as small as a watch battery, I find it worth spending a little more for reliability.

Where I Prefer to Buy

I usually buy from:

  • Authorized watch repair shops
  • Reputable online stores
  • Well-known battery brands
  • Electronics retailers with good reviews

I try to avoid unknown sellers with no clear product details, because I want to be sure I am getting a genuine battery.

Signs I Need a Replacement

I usually know it is time to replace my 377 battery when:

  • My watch stops completely
  • The time becomes slow or inaccurate
  • The display fades on a digital watch
  • The second hand starts jumping in unusual ways

When I notice these signs, I replace the battery quickly so I do not damage the watch by leaving a dead battery inside too long.

Installation Tips I Follow

When I replace the battery myself, I use a clean, dry surface and the right small tools. I handle the battery carefully and make sure the positive side is placed correctly. If I feel unsure, I take my watch to a professional because I do not want to scratch the case or damage the movement.

My Final Buying Advice

My best advice is simple: buy the exact 377 replacement, choose a trusted brand, and check freshness before ordering. I have found that a good battery keeps my watch running smoothly and saves me from repeated replacements. If I pay attention to compatibility and quality, I usually get the best results.

Final Thoughts

Replacing a watch battery 377 is a simple way to keep my watch running smoothly and avoid unnecessary downtime. I’ve found that using the correct battery and handling it carefully makes the process quick and reliable. If I’m ever unsure, I prefer to have it done professionally to protect my watch and ensure the best results.

Author Profile

Evan Whitmore
Evan Whitmore
Evan Whitmore is the voice behind thkeeper.com, writing from Raleigh, North Carolina. His background in office records, client paperwork, and everyday tech support taught him to notice the small details that make products helpful or frustrating.

He has always been the person friends and family ask before buying something practical, because he thinks beyond the package and looks at real use. In 2026, he began turning those careful notes into honest product reviews.

Evan writes for readers who want clearer choices, less wasted money, and products that quietly make daily life feel more organized, secure, and manageable.