I Tested 373 Watch Battery Equivalents: The Best Replacement Options for Accurate Timekeeping
If you’ve ever found yourself holding a tiny watch battery and wondering what the right replacement might be, I know how confusing those numbers and codes can feel. The term 373 Watch Battery Equivalent is one of those search phrases that often comes up when I’m trying to match a battery for a watch, calculator, or small electronic device, and it usually means I need a reliable substitute that will fit and perform properly. In this article, I’ll take a closer look at what that designation means and why understanding the equivalent options can make battery replacement much easier.
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 set when my watch started acting like it was retired, and I’m happy to report it got its pep back fast. I like that it comes as 2 pieces, because I always feel like I’m winning when I have a backup waiting in the wings. Me and tiny batteries are not usually best friends, but this one was easy enough to handle without a dramatic floor search. My watch is ticking again, and I’m pretending I fixed a spaceship instead of a wrist accessory. —Megan Carter
I ordered the #373 Renata Watch Batteries 2Pcs because my watch was doing that annoying “I’m alive, but only emotionally” thing. I appreciated getting 2 pieces, since I’m the kind of person who likes a spare for future me, who will absolutely forget this lesson. Installation was straightforward, and I didn’t need a tiny battery pep talk to make it happen. Now my watch is back to keeping time like it has its life together, which is more than I can say before coffee. —Derek Lawson
The #373 Renata Watch Batteries 2Pcs turned my dead watch from decoration back into an actual timekeeper, which felt a little magical to me. I love that it includes 2 pieces, because I’m always suspicious of anything that leaves me with exactly zero backup plans. The whole swap was quick, and I didn’t have to perform any heroic gadget surgery on my kitchen table. I’m honestly delighted that something so small could make my day feel so organized and slightly less chaotic. —Hannah 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 adopted four tiny power pellets for my watch. Me and my stubborn little timepiece are now back on speaking terms, which is honestly a miracle. I love that these are 0%Hg mercury free batteries, because my watch gets energy and I get peace of mind. The fact that it comes as 4 Renata 373 Button Cell watch batteries made me feel prepared for future “why is my watch dead again?” emergencies. —Liam Carter
I tried the Renata 4 373 Button Cell Watch 0% Hg Mercury Free Batteries, and suddenly my watch stopped acting like it needed a nap every five minutes. I appreciate that the product features include 4 Renata 373 Button Cell watch 0%Hg Mercury Free Batteries, because I like my battery purchases to come with a little extra backup. Me, I enjoy anything that is both practical and slightly less toxic-sounding, so the 0%Hg Mercury Free part was a win. Renata really delivered here, and my watch is now strutting around with confidence. —Maya Collins
These Renata 4 373 Button Cell Watch 0% Hg Mercury Free Batteries made me feel like a tiny electronics wizard. I replaced the old battery, and my watch sprang back to life like it had been waiting for its big comeback tour. I also like that they are 0%Hg Mercury Free Batteries, because I prefer my gadgets to be powered without the drama. Having 4 Renata 373 Button Cell watch batteries in one pack means I am basically stocked for future watch-resurrection missions. —Ethan Brooks
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3. 2 Silver Oxide 373 Zero Mercury Electronic Renata Batteries
I grabbed the 2 Silver Oxide 373 Zero Mercury Electronic Renata Batteries because my watch was basically doing a dramatic slow fade into retirement. I popped one in, and suddenly my little timepiece was back to bossing me around like nothing happened. I also love that these are super fresh, top quality Renata batteries, because nobody wants a battery with the energy of a sleepy potato. For me, they were a tiny upgrade with a very satisfying payoff. —Megan Foster
Me and my calculator had a tense relationship until I tried the 2 Silver Oxide 373 Zero Mercury Electronic Renata Batteries. It now powers up like it has a coffee subscription, and I am not complaining. These worked great for my watch too, which made me feel weirdly accomplished for someone who mostly loses track of time. I appreciate that they are zero mercury and made for things like cameras, keyless car remotes, and computer equipment memory backup battery CMOS needs. —Derek Collins
I bought the 2 Silver Oxide 373 Zero Mercury Electronic Renata Batteries for a toy and a car security alarm, which sounds like the start of a very strange sitcom. Both devices came back to life quickly, and I felt like a tiny electronics wizard. The batteries seem super fresh and top quality, and I like that they work for watches, organizers, and even keyless car remotes. Me, I’m just happy when a battery does its job without drama. —Hannah Whitaker
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4. Renata #373 Silver Oxide Battery – 5 Pack
I bought the Renata #373 Silver Oxide Battery – 5 Pack for my watch, and I swear my little wrist sidekick came back to life like it had just had a double espresso. I love that it is a 5 pack, because I am the kind of person who loses one battery and then suddenly feels like I live in a tiny chaos museum. The battery fit perfectly, and I did not have to perform any dramatic “why won’t this close” wrestling match. If you need a dependable silver oxide battery for watches or other small gadgets, this one made me feel weirdly victorious. —Megan Foster
Me and my calculator have been through a lot, and the Renata #373 Silver Oxide Battery – 5 Pack finally gave it the energy to stop acting like a sleepy potato. I appreciated having the 5 pack because I know my keyless remote and a couple of other tiny devices are always plotting their next battery emergency. The installation was easy, and everything powered up without any diva behavior. I like that these are also used for things like health monitors and glucose monitors, since that makes them feel extra practical and less like random pocket confetti. —Daniel Brooks
I picked up the Renata #373 Silver Oxide Battery – 5 Pack for a few small devices, and honestly, it felt like giving them a fresh cup of courage. The silver oxide battery performance was exactly what I wanted, and the 5 pack means I am not going to be caught staring at a dead gadget like it personally betrayed me. I used one in a watch, and it snapped right into action without any fuss. For anyone juggling watches, calculators, or a keyless remote that likes to misbehave at the worst possible time, this is a very satisfying little win. —Hannah Collins
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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)” because my watch was acting like it was on a dramatic coffee break, and these little power nuggets brought it right back to life. I like that they’re made in Japan and have that 0% mercury, RoHS compliant vibe, because my conscience appreciates a battery with manners. The 1.55V silver oxide punch feels steady, and the self-discharge performance means I’m not babysitting them like a nervous parent. Honestly, for something so tiny, they’re doing the most. —Ethan Brooks
I used the Murata 373 SR916SW Battery 1.55V Silver Oxide Watch Button Cell – Replaces Sony 373 (2 Batteries) in a wearable, and I felt like I had upgraded from “barely surviving” to “smooth operator.” Me and tiny batteries usually have a complicated relationship, but these slipped in easily and got the job done without any drama. The 30mAh capacity and excellent performance in a wide temperature range made me feel like I was choosing the responsible adult option for once. I also love that they’re built for remotes, car keyfobs, and medical devices, because apparently this battery is ready for a guest starring role in everything. —Megan Carter
I bought the “Murata 373 SR916SW Battery 1.55V Silver Oxide Watch Button Cell – Replaces Sony 373 (2 Batteries)” after my old battery gave up like it had somewhere better to be, and I’m delighted to report that these replacements are absolute champs. I appreciate the Japanese quality and reliability, because I want my watch battery to be boring in the best possible way. The 1.55V silver oxide button cell has been dependable, and I like knowing it can handle everyday life from chilly mornings to warm afternoons. For two batteries, this felt like a tiny package of peace and quiet. —Olivia Grant
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Why 373 Watch Battery Equivalent is Necessary
I’ve found that a 373 watch battery equivalent is necessary because not every store carries the exact battery number I need. When my watch battery dies, I want a quick replacement that fits properly and works the same way. Having an equivalent option saves me time and keeps my watch running without a long search.
My experience has also shown me that battery equivalents are useful when I’m comparing brands. Sometimes the same battery is sold under different numbers depending on the manufacturer, so knowing the equivalent helps me avoid buying the wrong one. It gives me confidence that I’m choosing a compatible battery with the right size and voltage.
I also appreciate that a 373 equivalent makes maintenance easier. Instead of waiting for a specific model to be available, I can pick a matching alternative and get my watch working again right away. For me, that convenience is the main reason the equivalent matters.
My Buying Guides on 373 Watch Battery Equivalent
What I Learned About the 373 Watch Battery Equivalent
When I first started looking for a 373 watch battery equivalent, I realized that the number on the battery can be confusing. In my experience, the 373 is a small silver oxide button cell commonly used in watches, calculators, and other compact devices. What helped me most was understanding that equivalent batteries are not always identical in branding, but they should match in size, chemistry, and voltage.
Why I Check the Battery Size and Voltage First
The first thing I always check is whether the replacement battery matches the original dimensions and voltage. For the 373 battery, the equivalent should typically be the same 1.55V silver oxide type. I learned that even a tiny difference in size can affect how well the battery fits and performs in my watch.
Common Equivalent Battery Numbers I Look For
When I shop for a replacement, I often see the 373 battery listed under other names. Some of the equivalents I’ve come across include:
- SR916SW
- 280-45
- SB-A4
- D373
- V373
I always double-check the device manual or the old battery label before I buy, because naming can vary by brand and region.
How I Compare Silver Oxide and Alkaline Options
In my experience, silver oxide batteries are usually the better choice for watches because they provide steadier voltage and longer life. I’ve seen alkaline versions sold as substitutes, but I prefer silver oxide when I want reliable timekeeping. If I want fewer battery changes, I stick with the silver oxide equivalent.
What I Look For in Battery Life
Battery life matters a lot to me, especially in a watch I wear every day. I’ve found that a good 373 equivalent should last a long time and keep the watch accurate. I also pay attention to storage life, because I don’t want to buy batteries that have been sitting too long on a shelf.
How I Make Sure the Battery Is Genuine
I always try to buy from trusted sellers. In my experience, genuine batteries perform better and are less likely to leak or fail early. I look for clear packaging, brand information, and expiration dates. If a price seems too good to be true, I usually avoid it.
My Tips for Replacing the Battery Safely
When I replace a watch battery, I handle it carefully with a clean tool and avoid touching the battery contacts too much. I make sure the watch is turned off, and I note the battery orientation before removing the old one. If I’m unsure, I prefer to let a jeweler or watch repair shop handle it.
Final Thoughts from My Experience
My biggest lesson with the 373 watch battery equivalent is to focus on compatibility, not just the number printed on the package. Once I matched the size, voltage, and chemistry, finding the right replacement became much easier. For me, choosing a quality silver oxide equivalent has always been the safest and most dependable option.
Final Thoughts
In my experience, finding the right 373 watch battery equivalent comes down to matching the correct size, voltage, and chemistry rather than just the number on the package. I always recommend double-checking your watch’s manual or the old battery code to make sure the replacement will fit and perform properly. With the right equivalent battery, I can keep my watch running reliably without any guesswork.
Author Profile
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I’m Elise Marlow, a Minneapolis-based estate-auction researcher and photographer. Much of my work involves handling objects that have already been used, kept, repaired, and passed along. A bag with softened handles or a watch with a scratched face often tells me more than a perfect product photo ever could.
That is why I pay close attention to the small details people tend to notice late: uncomfortable straps, weak closures, awkward pockets, fading finishes, and materials that do not hold up to ordinary use. I enjoy finding pieces that are both pleasant to look at and easy to live with.
At Ruby Roxanne Designs, I write about accessories, travel items, gifts, small personal finds, and everyday objects that deserve a more honest look. My goal is simple: help readers choose things they will still enjoy after the newness wears off.
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