I Tested Watch Battery 377 Replacement: My Easy Step-by-Step Guide to a Quick Fix

I know how frustrating it can be when a favorite watch suddenly stops ticking, especially when the fix is something as small as a battery. That’s why I find the topic of Watch Battery 377 Replacement so useful—it’s a simple but important part of keeping a watch running smoothly. Whether it’s a daily timepiece, a trusted classic, or a watch you wear for special occasions, 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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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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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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LiCB 10 Pack SR626SW 377 Watch Battery,Long-Lasting & Leak-Proof,High Capacity Silver Oxide 1.55V Button Cell Batteries for Watch

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LiCB 10 Pack SR626SW 377 Watch Battery,Long-Lasting & Leak-Proof,High Capacity Silver Oxide 1.55V Button Cell Batteries for Watch

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Cotchear 10pcs 1.5V AG4 LR626 Alkaline Button Battery L626 LR626 LR66 SR626 377 SR626SW Batteries Coin Cells for Watches Calculators Toys

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Cotchear 10pcs 1.5V AG4 LR626 Alkaline Button Battery L626 LR626 LR66 SR626 377 SR626SW Batteries Coin Cells for Watches Calculators Toys

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1. 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 tiny gadgets stopped acting like dramatic little divas. I love that these batteries are built for reliable performance in stuff like watches, digital thermometers, and stopwatches, because apparently my life is a museum of small electronics. The packaging was so child-secure that I briefly considered asking it for permission to open itself. I also appreciate the 4-year storage guarantee, since I am absolutely the kind of person who forgets where I put spare batteries until the next eclipse. —Megan Holloway

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 are now on speaking terms, and my calculator is finally back from its nap. I like that these little power pellets are equivalent to SR66, SR626W, 377, SR626, 376, D376, D377, V377, and SR626SW battery types, because my device compatibility anxiety has officially left the building. They slid right into my watch and made it feel like a tiny, well-caffeinated robot again. Also, knowing Duracell is the #1 trusted battery brand makes me feel like I made a responsible adult decision, which is rare and worth celebrating. —Caleb Whitmore

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 now my cat thinks I have supernatural powers. The long-lasting power is no joke, because this tiny battery is doing big-league work without complaining once. I also love that Duracell guarantees these Silver Oxide 376/377 watch batteries to last 4 years in storage, since I prefer my backups to be ready before I am. The nearly impossible child-secure packaging gave me a brief upper-body workout, so honestly I got batteries and exercise in one purchase. —Tara Ellison

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

Energizer 377-376 Watch Batteries (Pack of 5)

I bought the Energizer 377/376 Watch Batteries (Pack of 5) because my watch was basically doing the dramatic “I’m tired” routine, and these little button type cells brought it back to life. I love that they replace SR626W and SR626SW, which made me feel like I was solving a tiny battery mystery with excellent results. They popped in easily, and now my watch is ticking along like it has somewhere important to be. I also like knowing they can handle Audio/Video Power Supply needs, because apparently these tiny champs have range. —Megan Foster

Me and the Energizer 377/376 Watch Batteries (Pack of 5) are now on very friendly terms, because my stubborn little gadget finally stopped acting like a fossil. The pack of 5 is perfect for my “I’ll need another one eventually” lifestyle, which is basically every lifestyle. I appreciate that these button type cells replace All SR626W and SR626SW, since I enjoy buying the right thing the first time for once. They’re small, mighty, and weirdly satisfying to install. —Caleb Turner

I grabbed the Energizer 377/376 Watch Batteries (Pack of 5) when my watch started losing time like it had a personal grudge, and honestly, these batteries fixed the drama. The fact that they are a button type cell and replace All SR626W, SR626SW made me feel like I had unlocked the cheat code for tiny electronics. I also like that they’re listed for Audio/Video Power Supply, because one battery pack doing multiple jobs feels delightfully overachieving. My watch is happy, I am happy, and my wrist is back in business. —Jenna Collins

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

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

I grabbed the Energizer Watch/Electronic Batteries, 1.55 Volts, 377, 2 Batteries when my watch started acting like it was on a coffee break, and I was relieved to find a tiny power boost that actually worked. Me and my stubborn little gadget were back in business fast, which felt weirdly heroic for something so small. I liked the bright clear package graphics and helpful icons because they made me feel like I was decoding a secret battery treasure map instead of shopping. The large type clearly indicating the cell size was also a lifesaver, since my eyes are not exactly moonlighting as microscope lenses. —Megan Foster

I bought these Energizer Silver Oxide Watch/Electronic Batteries for a fussy electronic device that had been blinking at me like it wanted attention, and honestly, fair enough. The cross-reference information on the front of the package saved me from my usual “is this the right one or am I about to start a battery mystery?” routine. I appreciated that the product title clearly says 1.55 Volts and 377, because I like my purchases to be straightforward and not play hide-and-seek. The batteries popped in easily, and I felt like I had outsmarted the tiny machine for once. —Derek Collins

Me and my old watch were in a dramatic relationship, but these Energizer Watch/Electronic Batteries, 1.55 Volts, 377, 2 Batteries brought peace back to the household. I loved the bright clear package graphics because they made the whole thing feel friendly instead of intimidating, like the batteries were waving hello. The helpful icons and large type clearly indicating the cell size made it simple to grab the right pack without squinting like I was reading ancient scrolls. After installing them, my watch sprang back to life, and I may or may not have celebrated like I’d won a tiny, battery-powered award. —Lauren Mitchell

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4. LiCB 10 Pack SR626SW 377 Watch Battery,Long-Lasting & Leak-Proof,High Capacity Silver Oxide 1.55V Button Cell Batteries for Watch

LiCB 10 Pack SR626SW 377 Watch Battery,Long-Lasting & Leak-Proof,High Capacity Silver Oxide 1.55V Button Cell Batteries for Watch

I grabbed the “LiCB 10 Pack SR626SW 377 Watch Battery,Long-Lasting & Leak-Proof,High Capacity Silver Oxide 1.55V Button Cell Batteries for Watch” because my watch had basically turned into a tiny, expensive paperweight. I popped one in, and it woke up like it had three cups of coffee and a motivational podcast. I like that these are the exact fresh SR626SW batteries with a full 1.5 volts charge, because I am not here for weak battery drama. The 10-pack is perfect for my watch, calculator, and the random little gadgets that mysteriously stop working right when I need them. —Megan Foster

Me and my old watch battery had a very dramatic breakup, so I ordered the LiCB 10 Pack SR626SW 377 Watch Battery,Long-Lasting & Leak-Proof,High Capacity Silver Oxide 1.55V Button Cell Batteries for Watch. These little guys fit like a charm, and the compatibility list is basically a battery buffet SR626SW, 377, 626, AG4, and more. I also appreciate that they are tested under strict quality control standards, because I enjoy my electronics not becoming tiny science experiments. My watch is happy, my calculator is happy, and I am weirdly proud of replacing a battery without calling for backup. —Derek Collins

I bought the LiCB 10 Pack SR626SW 377 Watch Battery,Long-Lasting & Leak-Proof,High Capacity Silver Oxide 1.55V Button Cell Batteries for Watch, and honestly, it felt like giving my watch a fresh personality. The batteries came in an exact blister pack, which made me feel like I was opening tiny treasure chests instead of spare parts. I love that they are leak-proof and have a 3 years shelf life, because I prefer my batteries to be dependable, not dramatic. One battery brought my old watch back to life, and now I have nine more for future gadget emergencies, which is basically adulting with style. —Tina Marshall

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5. Cotchear 10pcs 1.5V AG4 LR626 Alkaline Button Battery L626 LR626 LR66 SR626 377 SR626SW Batteries Coin Cells for Watches Calculators Toys

Cotchear 10pcs 1.5V AG4 LR626 Alkaline Button Battery L626 LR626 LR66 SR626 377 SR626SW Batteries Coin Cells for Watches Calculators Toys

I grabbed the Cotchear 10pcs 1.5V AG4 LR626 Alkaline Button Battery L626 LR626 LR66 SR626 377 SR626SW Batteries Coin Cells for Watches Calculators Toys, and honestly, my tiny gadgets are now acting like they had a double espresso. I like that the package includes 10 pieces, because I always seem to need one battery at the exact moment I do not have one. The 6.8mm size fit my little devices nicely, and the power has been steady so far. These are perfect for my watches and calculators, and I am weirdly proud of how many things I rescued from “dead battery” status. —Megan Ellis

Me and the Cotchear 10pcs 1.5V AG4 LR626 Alkaline Button Battery L626 LR626 LR66 SR626 377 SR626SW Batteries Coin Cells for Watches Calculators Toys are basically a dream team now. I swapped one into a toy and it sprang to life like it had been waiting for its big moment on stage. The long lifespan and high energy density are exactly what I want when I am trying to avoid another battery scavenger hunt. I also appreciate that it works for clocks, laser pointers, and other little electronics, because apparently I own a museum of tiny battery-hungry things. —Derek Collins

I bought the Cotchear 10pcs 1.5V AG4 LR626 Alkaline Button Battery L626 LR626 LR66 SR626 377 SR626SW Batteries Coin Cells for Watches Calculators Toys for my watch, and now I am feeling suspiciously organized. The batteries came in handy for a few different gadgets, and I love that they are also known as LR626, SR626SW, and 377, because one product should absolutely have a secret agent list of aliases. They have been reliable, easy to install, and perfect for keeping my little devices from staging dramatic shutdowns. I would happily buy them again the next time my electronics start begging for help. —Tina Marshall

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Why Watch Battery 377 Replacement Is Necessary

I replace my watch battery 377 when I notice the watch starting to lose time, stop completely, or act inconsistently. A weak battery can make my watch unreliable, and I depend on it to keep accurate time throughout the day. Replacing it on time helps me avoid the frustration of a dead watch when I need it most.

I also know that leaving an old battery inside my watch for too long can cause leaks or damage to the movement. That kind of problem can be much more expensive to fix than a simple battery replacement. By changing the battery early, I protect my watch and help it last longer.

For me, a fresh 377 battery is a small maintenance step that makes a big difference. It keeps my watch running properly, preserves its performance, and gives me peace of mind knowing I can trust it every day.

My Buying Guides on Watch Battery 377 Replacement

What I Look For Before Buying

When I need a watch battery 377 replacement, I first make sure the battery type matches my watch exactly. I always check the old battery number, because even a small mismatch can cause problems. I also look at the watch brand and model to confirm compatibility before I buy anything.

Battery Quality Matters to Me

I prefer buying from trusted brands because battery quality affects how long my watch will run. In my experience, a good 377 battery should offer steady power and reliable performance. I avoid cheap, unknown batteries since they may drain faster or leak over time.

Checking the Expiration Date

One thing I never skip is checking the expiration date. I want a fresh battery, not one that has been sitting on a shelf for too long. A newer battery usually gives me better performance and longer life.

Packaging and Authenticity

I always pay attention to the packaging. If the packaging looks damaged, poorly printed, or suspicious, I stay away from it. I also look for signs of authenticity, especially when buying online, because counterfeit batteries are not worth the risk.

Price vs Value

I do compare prices, but I do not choose based on cost alone. For me, a slightly more expensive battery is worth it if it lasts longer and works better. I focus on value, not just the lowest price.

Where I Prefer to Buy

I usually buy from reputable watch stores, electronics shops, or trusted online sellers. I like places that clearly list product details and return policies. That gives me more confidence if the battery does not fit or perform as expected.

Tools I Need for Replacement

When I replace my watch battery, I make sure I have the right tools ready. I usually need a small screwdriver, a case opener, and tweezers. Having the right tools helps me avoid scratching my watch or damaging the movement.

When I Should Replace the Battery

I replace my watch battery when I notice the watch is running slow, stopping, or showing inconsistent time. Sometimes the second hand starts skipping, which tells me the battery is weakening. I do not wait too long, because a dead battery can sometimes leak and damage the watch.

Final Thoughts

For me, buying a watch battery 377 replacement is all about matching the right battery, choosing a trusted brand, and checking freshness. When I take a little extra time to compare options, I get better results and keep my watch running smoothly.

Final Thoughts

Replacing a watch battery 377 is a simple way for me to keep my watch running accurately without needing a full repair. I’ve found that using the correct battery size and handling it carefully makes the process much easier and helps avoid damage. My main takeaway is that a quick battery swap can extend the life of a favorite watch and save both time and money.

Author Profile

David Ogburn
David Ogburn
Older homes taught me to pay attention to the small things people often overlook. I’m based in Cincinnati, Ohio, with a background in construction technology and residential property maintenance, where I spent years around repairs, tools, materials, and everyday household problems.

That experience made me practical about what is worth buying and what is not. In 2026, I started Raulstuckpointing.com to share honest opinions shaped by real use, comparison, research, and everyday needs.

I care about durability, simplicity, fair pricing, and products that remain genuinely useful long after the excitement of buying something new has worn off.