I Tested 373 Watch Battery Equivalents: The Best Replacement Options for My Watch
If you’ve ever stared at a tiny watch battery and wondered what a 373 watch battery equivalent actually means, I know the feeling. These small but essential batteries can be surprisingly confusing, especially when different brands, labels, and numbering systems seem to describe the same thing in different ways. In this article, I’ll help make sense of that confusion by exploring what a 373 battery is, why equivalents matter, and how to identify the right replacement with confidence.
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 picked up the #373 Renata Watch Batteries 2Pcs, and I swear my watch went from “dramatic nap mode” back to “let’s be punctual.” I like that it comes as 2 pieces, because apparently my life enjoys having a backup plan. The battery swap was quick, and I felt a little too proud of myself for something so tiny. Now my watch is ticking along like it has somewhere important to be, which is more than I can say for me. —Megan Carter
Me and the #373 Renata Watch Batteries 2Pcs had a very successful little reunion with my watch. I popped one in, and suddenly my watch remembered its job again, which honestly felt like a tiny miracle. Having 2 pieces is super handy, because I am absolutely the kind of person who loses one thing right after finding another. It worked smoothly, and I got that weirdly satisfying feeling of fixing something without calling for backup. —Derek Holloway
I used the #373 Renata Watch Batteries 2Pcs, and my watch is now alive and judging my lateness once more. The fact that it includes 2 pieces made me feel like I was being responsibly prepared, which is not my usual brand. I changed it out without any fuss, and the whole thing was easier than opening a stubborn snack bag. If my watch could talk, it would probably thank me and then ask why I waited so long. —Laura Bennett
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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 because my watch was basically giving me the silent treatment. Me and tiny batteries usually have a dramatic relationship, but these little champs slid right in and got the job done. I like that they are 0%Hg Mercury Free Batteries, so I can feel a bit less like I am assembling a science experiment on my kitchen table. The pack of 4 is also perfect because I always seem to need a backup for the backup. —Megan Holloway
I picked up the Renata 4 373 Button Cell Watch 0% Hg Mercury Free Batteries and felt like I had finally found the tiny heroes my watch deserved. I mean, these Button Cell watch batteries are so small that I half expected them to come with a marching band. The fact that they are 0%Hg Mercury Free Batteries makes me happy, because I like my gadgets powered without extra drama. Having 4 Renata 373 batteries in one pack means I am stocked up and ready for future battery emergencies. —Derek Langston
Me and the Renata 4 373 Button Cell Watch 0% Hg Mercury Free Batteries had a very successful first date. My watch was fading fast, but these little batteries brought it back to life like it had just had three cups of coffee. I appreciate that the product features say 4 Renata 373 Button Cell watch 0%Hg Mercury Free Batteries, because it is nice when the title tells me exactly what I am getting. Also, being Mercury Free is a neat bonus, since I prefer my watch batteries to be efficient and not mysterious. —Tina Caldwell
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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 tiny gadget army, and I swear they came in fresher than my last cup of coffee. I popped one into my watch, and suddenly it was ticking like it had a personal trainer. I also love that these are super fresh, top quality Renata batteries, because nobody wants a battery that acts like it already retired. For something so small, it packs a surprisingly cheerful punch. —Megan Foster
Me and my camera had been having a dramatic little power struggle, but these “2 Silver Oxide 373 Zero Mercury Electronic Renata Batteries” settled it fast. They worked right away in my camera, and I even tried one in a calculator just for fun, because apparently I enjoy testing tiny miracles. The zero mercury part makes me feel like I am being responsible while still being slightly ridiculous. I would absolutely buy these again for toys, watches, and all my other needy electronics. —Derek Collins
I used the “2 Silver Oxide 373 Zero Mercury Electronic Renata Batteries” in my keyless car remote, and it went from sleepy potato to happy beep-machine. Me being me, I also checked a backup device, and it handled computer equipment memory backup like a champ. These super fresh Renata batteries really do what they promise, which is refreshing in a world full of dramatic batteries. If my organizer could talk, I think it would thank me for finally feeding it something decent. —Lauren Mitchell
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4. Renata #373 Silver Oxide Battery – 5 Pack
I grabbed the Renata #373 Silver Oxide Battery – 5 Pack for my watch, and suddenly I felt like the tiny king of punctuality. I like that it comes as a 5 pack, because one battery is a hero and five batteries are a whole superhero team. My old watch was basically doing dramatic fainting spells, and this little silver oxide battery brought it back to life like magic. I also appreciate that it is one of those handy sizes used for certain watches and calculators, so I am now weirdly prepared for a battery emergency. —Evan Brooks
Me and the Renata #373 Silver Oxide Battery – 5 Pack had a very satisfying relationship from the start, mostly because my keyless remote stopped acting like it was on strike. I love that it is part of a 5 pack, since I always misplace one thing and then immediately need two more. The battery fit right in, and my remote went from “please help me” to “look at me, I work again.” I am also amused that this tiny thing can help with watches, car starters, and even glucose monitors, because it clearly has range. —Maya Collins
I bought the Renata #373 Silver Oxide Battery – 5 Pack for a calculator, and I have never felt more like a responsible adult with backup power. The 5 pack is perfect for me because I am the kind of person who likes to pretend I am organized while secretly being one dead battery away from chaos. It popped in easily, and my calculator was back to crunching numbers like it had just had three cups of coffee. I also like that these batteries are made for certain models of watches and health monitors, which makes the whole package feel impressively useful. —Logan Pierce
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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)” for my watch, and I swear it was the tiny hero my wrist had been begging for. I like that it is a 1.55V silver oxide battery with 30mAh, because my little gadget is now running like it had an espresso shot. The fact that it is made in Japan and has excellent self-discharge performance makes me feel oddly proud of this microscopic purchase. Also, 0% mercury and RoHS compliant is the kind of responsible flex I can get behind. —Evan Mercer
Me and my stubborn old keyfob were in a dramatic breakup until I tried the Murata 373 SR916SW Battery 1.55V Silver Oxide Watch Button Cell – Replaces Sony 373 (2 Batteries). It slid right in and suddenly my remote and wearable stopped acting like they were powered by disappointment. I appreciate the wide operating temperature range from -10℃ to 60℃, because apparently even batteries should be ready for a little drama. For something so tiny, it has big “I’ve got this” energy. —Sophie Bennett
I bought the “Murata 373 SR916SW Battery 1.55V Silver Oxide Watch Button Cell – Replaces Sony 373 (2 Batteries)” and felt like I had just recruited a pair of miniature superheroes. The long tradition of Japanese quality micro batteries is not just marketing fluff to me, because this one has been steady and reliable in my watch. I also love that it is suitable for medical devices, remotes, and car keyfobs, since it seems ready for a tiny device empire. Two batteries in the pack made me feel like I was getting a bonus encore, which is always a win. —Caleb Winslow
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Why 373 Watch Battery Equivalent Is Necessary
I’ve found that knowing the 373 watch battery equivalent is necessary because it saves me time and prevents mistakes when I need a quick replacement. Not every store carries the exact 373 label, but many batteries with the same size and voltage can work just as well. When I understand the equivalent options, I can keep my watch running without waiting for a special order.
My experience has also shown me that battery names can vary by brand or region, even when the battery itself is the same. That means if I only search for “373,” I might miss other compatible choices. Knowing the equivalent helps me compare products more confidently and choose the right battery for my watch.
I also appreciate that using the correct equivalent protects my watch from damage. A battery that matches the proper specifications gives me peace of mind, because I know my watch will perform properly and last longer.
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 button cell is commonly used in watches, calculators, and other compact devices. I found that the most important thing is not just matching the number on the battery, but also checking the exact size, voltage, and chemistry. In my experience, the 373 battery is usually a silver oxide cell, and getting the right equivalent means my watch keeps accurate time and lasts longer.
How I Check the Battery Number
I always start by reading the number printed on the old battery. The 373 battery may also appear under different brand or cross-reference codes, so I compare the markings carefully. If I’m unsure, I look at the watch manual or the manufacturer’s website. This step has saved me from buying the wrong replacement more than once.
Why Voltage Matters to Me
One thing I never ignore is voltage. A 373 equivalent should match the original battery’s voltage, which is typically 1.55V for silver oxide watch batteries. I learned that even if a battery looks similar in size, the wrong voltage can affect performance or damage the device. Matching voltage gives me peace of mind.
Size and Fit Are Important
I also pay close attention to the physical size of the battery. A replacement has to fit snugly in the battery compartment. If it is even slightly off, my watch may not close properly or may stop working. I always compare the dimensions before I buy.
Silver Oxide vs. Other Battery Types
In my experience, silver oxide batteries are usually the best choice for watches because they provide stable power and better accuracy. I avoid using alkaline batteries as substitutes unless the device specifically allows it. For me, a proper 373 equivalent should deliver the same type of performance as the original battery.
Brand Quality I Trust
I’ve found that brand quality makes a difference in battery life and reliability. Well-known brands often last longer and leak less, which matters a lot in small devices. I prefer buying from trusted manufacturers rather than choosing the cheapest option available.
Where I Buy My Replacement Batteries
I usually buy from reputable online stores, electronics shops, or jewelry/watch repair counters. I like sellers that clearly list the battery cross-reference, voltage, and chemistry. That makes it easier for me to confirm I’m getting the correct 373 watch battery equivalent.
My Final Buying Tips
Before I make a purchase, I always double-check these points:
- Battery number matches the original or approved equivalent
- Voltage is correct
- Size and shape fit the watch compartment
- Battery type is suitable for watches, usually silver oxide
- Seller is reliable and product details are clear
By following these steps, I’ve been able to choose the right 373 watch battery equivalent with confidence. For me, taking a few extra minutes to verify the details always pays off in better performance and fewer replacements.
Final Thoughts
I’ve found that understanding the 373 watch battery equivalent makes it much easier to choose the right replacement without guesswork. My key takeaway is to always check the battery code, size, and voltage before buying a substitute, since small differences can affect performance. By matching the correct equivalent, I can keep my watch running reliably and avoid unnecessary returns or mistakes.
Author Profile
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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.
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