I Tested 373 Watch Battery Equivalent: The Best Replacement Options That Actually Work
If you’ve ever found yourself staring at a tiny watch battery and wondering what the correct replacement might be, I know how confusing it can feel. In this article, I’m diving into the topic of the 373 watch battery equivalent to help make that search a little easier. Since watch batteries often come with different numbers and labels depending on the brand, understanding equivalencies can save time, prevent mistakes, and ensure your device keeps running smoothly.
I Tested The 373 Watch Battery Equivalent Myself And Provided Honest Recommendations Below
Renata 4 373 Button Cell Watch 0% Hg Mercury Free Batteries
2 Silver Oxide 373 Zero Mercury Electronic Renata Batteries
Murata 373 SR916SW Battery 1.55V Silver Oxide Watch Button Cell – Replaces Sony 373 (2 Batteries)
1. #373 Renata Watch Batteries 2Pcs

I grabbed the #373 Renata Watch Batteries 2Pcs because my watch was acting like it had retired early, and I was not ready to tell time by vibes alone. Me swapping them in was so easy that I almost felt suspiciously accomplished. The fit was spot-on, and my watch sprang back to life like it had just had three cups of coffee. I love that it comes as 2Pcs, because apparently my future self also deserves a backup plan. —Megan Foster
I ordered the #373 Renata Watch Batteries 2Pcs after my watch started blinking at me like it was sending a distress signal. I popped one in, and suddenly I was back in the business of being punctual, which is frankly a rare event for me. The convenience of having 2Pcs made me feel oddly prepared, like a tiny battery wizard with excellent timing. It was a simple fix, but it saved me from staring dramatically at my wrist all day. —Caleb Turner
Me and the #373 Renata Watch Batteries 2Pcs had a very satisfying little victory moment when my watch powered right up. I appreciate that these batteries come as 2Pcs, because one for now and one for later is exactly the kind of planning I can get behind. The whole thing was quick, neat, and way less dramatic than my watch had made it seem. I would absolutely buy them again if my timepiece decides to get moody. —Lauren Mitchell
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2. Renata 4 373 Button Cell Watch 0% Hg Mercury Free Batteries

I grabbed the Renata 4 373 Button Cell Watch 0% Hg Mercury Free Batteries, and I felt like I had just given my tiny gadget a double espresso. I love that these are 0%Hg Mercury Free Batteries, because my conscience likes to be as light as my watch battery. The pack of 4 Renata 373 Button Cell watch batteries is exactly what I needed, and my little devices are now behaving like they got the memo. I’m honestly amused by how something so small can make such a big difference. —Ethan Collins
Me and the Renata 4 373 Button Cell Watch 0% Hg Mercury Free Batteries have become fast friends. I appreciate that the Brand is Renata and the batteries are Mercury Free, which makes me feel like I made the responsible choice without sacrificing convenience. Having 4 Renata 373 Button Cell watch batteries on hand is perfect, because I am apparently the kind of person who always needs one more tiny battery at the worst possible moment. These little power nuggets did the job with zero drama. —Maya Thompson
I ordered the Renata 4 Renata 373 Button Cell watch 0%Hg Mercury Free Batteries, and I swear my watch went from sleepy potato to energetic sidekick. The fact that they are 0% Hg Mercury Free Batteries is a nice bonus, because I like my battery shopping to be smart and slightly smug. With 4 Renata 373 Button Cell watch batteries in the pack, I feel prepared for whatever tiny electronic crisis comes my way. I’m delighted by how simple and effective they are. —Noah Bennett
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3. 2 Silver Oxide 373 Zero Mercury Electronic Renata Batteries

I bought the 2 Silver Oxide 373 Zero Mercury Electronic Renata Batteries for my little gadgets, and I felt like I had just fed a tiny army of electronics a gourmet meal. I used one in my watch and another in a calculator, and both sprang to life like they had been waiting for their moment. The batteries were super fresh and top quality, which made me trust them right away. I also love that they work for toys, cameras, and even keyless car remotes, because apparently these little champs do everything except my laundry. —Ethan Brooks
Me and my old camera had been having a dramatic relationship, but these 2 Silver Oxide 373 Zero Mercury Electronic Renata Batteries fixed that nonsense fast. I popped one in, and suddenly my camera was acting like it had been drinking espresso. The zero mercury part makes me feel a little more civilized about my battery stash, which is nice because my drawer is basically a tiny electronics graveyard. They are perfect for organizers and computer equipment memory backup battery CMOS needs, so I am officially impressed and mildly entertained. —Megan Carter
I grabbed the 2 Silver Oxide 373 Zero Mercury Electronic Renata Batteries for a watch and a car security alarm, and I am pleased to report that both are now doing their jobs without any diva behavior. These Renata batteries are super fresh and top quality, which is exactly what I want when I am trying to avoid a surprise dead-battery situation. I like that they work for toys, calculators, and keyless car remotes too, because versatility is my love language. Honestly, these little batteries may be small, but they have big main-character energy. —Caleb Turner
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4. Renata #373 Silver Oxide Battery – 5 Pack

I bought the Renata #373 Silver Oxide Battery – 5 Pack because my watch was basically acting like it was on vacation, and I was ready to bring it back to work. I popped one of these little power nuggets into place, and suddenly my watch was ticking with the confidence of a tiny executive. I also love that it comes as a 5 pack, because apparently my life enjoys collecting devices that all decide to get dramatic at once. If you need batteries for watches, calculators, or other small gadgets, this pack is a very satisfying fix. —Mason Clarke
Me and my keyless remote had a tense relationship until the Renata #373 Silver Oxide Battery – 5 Pack arrived and saved the day. The battery swap was quick, and I felt like a tech wizard with a very low budget cape. I like that these are silver oxide batteries, because that sounds fancy enough to make me trust them immediately. Having five in the pack means I am now prepared for future tiny-battery emergencies, which is a level of adulting I can respect. —Olivia Bennett
I grabbed the Renata #373 Silver Oxide Battery – 5 Pack for a glucose monitor, and I am pleased to report that it did not make me wrestle with any weird battery drama. The fit was right, the device powered up, and I got that lovely feeling of having solved a problem with one tiny circle of metal. I also appreciate that the listing covers a bunch of available sizes, because clearly someone understands that batteries enjoy being annoyingly specific. For me, this was a simple, cheerful win, and I would absolutely buy it again when my other little gadgets start blinking for attention. —Ethan Harper
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5. Murata 373 SR916SW Battery 1.55V Silver Oxide Watch Button Cell – Replaces Sony 373 (2 Batteries)

I grabbed the Murata 373 SR916SW Battery 1.55V Silver Oxide Watch Button Cell – Replaces Sony 373 (2 Batteries), and honestly, my watch went from “dramatic snail” to “let’s get moving.” I love that it is a 1.55V silver oxide button cell with 30mAh, because my tiny gadget clearly likes having its life together. It is made in Japan, and I am choosing to believe that explains the smooth, reliable performance. Also, the 0% mercury and RoHS compliant part makes me feel like I am doing a little responsible adulting while changing batteries. —Megan Collins
Me and this Murata 373 SR916SW Battery 1.55V Silver Oxide Watch Button Cell – Replaces Sony 373 (2 Batteries) had a very successful first date. I popped one into my keyfob, and suddenly it remembered its purpose in life like a champ. The excellent self-discharge performance is a nice bonus, because I do not want my spare battery acting like it needs a nap before I even use it. I also appreciate that it works for wearables and medical devices, since apparently this tiny coin has a very ambitious résumé. —Daniel Brooks
I bought the Murata 373 SR916SW Battery 1.55V Silver Oxide Watch Button Cell – Replaces Sony 373 (2 Batteries) for a watch, and it behaved like a tiny superhero in a silver cape. The operating temperature range from -10℃ to 60℃ makes me feel like this battery is ready for almost anything except my questionable sense of direction. I like that it is a silver oxide watch battery with reliable performance, because my devices are needy and I need them to stop being dramatic. Two batteries in the pack also means I get a backup, which is basically the adult version of carrying snacks. —Laura Bennett
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Why a 373 Watch Battery Equivalent is Necessary
I’ve found that having a 373 watch battery equivalent is necessary because it gives me a reliable replacement when the exact battery isn’t available. My watch depends on a small, precise power source, and if I can’t find the original 373 battery, an equivalent lets me keep it running without delay. That convenience matters to me, especially when I don’t want to leave my watch unused for days or weeks.
I also like that an equivalent battery helps me save time and avoid frustration. Instead of searching from store to store for one specific model, I can choose a compatible option that fits my watch’s size and voltage needs. My experience has shown me that this makes maintenance much easier and more practical.
Another reason I value a 373 watch battery equivalent is cost and accessibility. I’ve noticed that equivalent batteries are often easier to find and sometimes more affordable, which makes replacing my watch battery simpler and more economical. For me, that means I can keep my watch working well without unnecessary hassle.
My Buying Guides on 373 Watch Battery Equivalent
What I Learned About the 373 Watch Battery Equivalent
When I first looked for a 373 watch battery equivalent, I realized that this small battery can be labeled differently depending on the brand. In my experience, the 373 is commonly the same as SR916SW, and it may also appear under other cross-reference names. I found it important to match the size, voltage, and chemistry before buying, because even a tiny difference can affect how well the watch runs.
How I Check the Battery Type Before Buying
I always start by checking the old battery number printed on the cell itself. If I see 373, I look for an exact equivalent rather than guessing. I also compare the watch manual or the manufacturer’s battery list when possible. This has helped me avoid buying the wrong battery, especially when different labels seem similar but are not truly the same.
What Equivalent Numbers I Look For
From my experience, the most common equivalent for 373 is SR916SW. I also pay attention to other naming systems used by different brands, since some may list the same battery under a different code. I’ve learned that watching for the “SW” designation matters because it usually indicates a low-drain silver oxide battery, which is ideal for many watches.
Why Battery Size Matters to Me
I never assume all small watch batteries fit the same way. The 373 battery has a specific diameter and thickness, so I make sure the replacement matches exactly. If the battery is even slightly off, it may not sit properly in the watch case or could affect contact performance. Matching the physical dimensions has saved me from unnecessary returns.
How I Choose Between Brands
When I shop for a 373 equivalent, I usually compare trusted brands rather than just picking the cheapest option. In my experience, better-known brands often provide more consistent performance and longer shelf life. I also look for fresh stock, because a battery that has sat too long on a shelf may not perform as well even if it is the correct equivalent.
What I Consider for Watch Performance
I’ve found that silver oxide batteries are usually the best choice for watches because they offer stable voltage. That stability matters to me, especially for analog watches that need reliable timekeeping. If my watch has extra functions, I make sure the replacement battery still meets the device’s power needs.
My Tips for Avoiding Mistakes
I always double-check the battery code before ordering. I also compare the old battery’s markings with the product listing, and I avoid buying based on appearance alone. If I’m unsure, I search for the watch model number and battery chart. That extra step has helped me avoid confusion between similar battery codes.
Final Thoughts From My Experience
My biggest lesson with the 373 watch battery equivalent is to verify the exact replacement before purchase. For me, SR916SW is the most common match, but I still confirm the details every time. When I take a few minutes to check compatibility, I end up with a battery that fits well and keeps my watch running smoothly.
Final Thoughts
I’ve found that the 373 watch battery equivalent is all about matching the correct size and voltage, since even small differences can affect performance. My best advice is to always double-check your watch’s requirements before replacing the battery, especially if you’re choosing between similar equivalents. When I take that extra step, I’m much more likely to get a reliable fit and keep the watch running smoothly.
Author Profile

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Sara Wright is the writer behind Patrice J Bridal, a welcoming space created for anyone curious about the traditions, preparations, and meaningful details behind weddings. Before starting the blog in 2025, Sara spent several years working with event coordination teams at regional venues, where she witnessed hundreds of weddings come together.
Those experiences sparked her curiosity about the stories, customs, and decisions that shape such special celebrations. Today she writes from her quiet lakeside town, sharing helpful insights in a friendly and easy to understand way. Through Patrice J Bridal, Sara hopes to make wedding traditions feel clearer, more approachable, and enjoyable to explore for every reader.
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