DOWNLOAD THE APP
Customer Services
Copyright © 2025 Desertcart Holdings Limited
DOWNLOAD THE APP
🔋 Power your essentials with Swiss precision—don’t get left powerless!
Renata 379 SR521SW is a premium 1.55V silver oxide watch battery delivering 16 mAh capacity with superior leakage resistance. Swiss-made for consistent, long-lasting performance, it’s ideal for watches, cameras, keyless remotes, and other small electronics. Highly rated and trusted for reliability and durability.
| ASIN | B00MV74Q46 |
| Batteries | 2 Product Specific batteries required. (included) |
| Best Sellers Rank | #33,224 in Health & Household ( See Top 100 in Health & Household ) #224 in Coin & Button Cell Batteries |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,162) |
| Date First Available | October 14, 2010 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.01 ounces |
| Item model number | 4330928222 |
| Manufacturer | Renata |
| Package Dimensions | 6.85 x 1.54 x 0.43 inches |
T**D
RENATA 379 SR521SW Watch Battery
$13 for 20 batteries 379 is good buy. Put 1 of them in my watch and it works great! SWISS MADE👍
M**.
Watch battery.
Perfect for my watch.
G**0
Got my Bulova watch.
The battery was delivered the next day. It fit perfectly in my Bulova ladies watch 98V02. The original battery was marked SR521SW. This tiny battery was an exact fit. The watch is working great and keeping time. The original battery lasted 2 years. I will update if this fails prematurely. It’s November 20, 2025.
P**G
No expiration date on package
Swiss made batteries builds confidence in manufacturing quality Lack of expiration date makes freshness suspect.
A**S
Will be a repeat customer
Great price, received sooner than expected & seller even provided an invoice, which Amazon nor other sellers bother to do anymore. I'll definitely be a repeat customer!
A**R
Reasonable price
I bought this battery for my old DKNY watch and it works and accurate.
C**T
Watch Battery
Worked great for a Pulsar watch
M**B
good batteries for the price
work fine
J**B
Reliable and long‑lasting 👍 This Renata 379 (SR521SW) battery fits perfectly and powers my device exactly as expected. Easy to install and has held up well so far — great value for a genuine replacement battery. Highly recommend.
E**G
A+
R**A
It is also a size AG0 or 521. My digital multimeter showed them as 1.57v. Best before date of Feb 2028.
G**Y
Meine Quarzuhr läuft wieder, wie lange, wird sich zeigen...
L**.
Las compré por marca y porque me salía más barato que mandar a cambiar las pilas, al relojero
Trustpilot
1 day ago
3 days ago