---
product_id: 16579455
title: "Renata 379 SR521SW Batteries - 1.55V Silver Oxide 379 Watch Battery (2 Count)"
brand: "renata"
price: "30 zł"
currency: PLN
in_stock: true
reviews_count: 13
category: "Renata"
url: https://www.desertcart.pl/products/16579455-renata-379-sr521sw-batteries-1-55v-silver-oxide-379-watch
store_origin: PL
region: Poland
---

# 1.55V Nominal Voltage 16 mAh High Capacity Superior Leakage Resistance Renata 379 SR521SW Batteries - 1.55V Silver Oxide 379 Watch Battery (2 Count)

**Brand:** renata
**Price:** 30 zł
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your essentials with Swiss precision—don’t get left powerless!

## Quick Answers

- **What is this?** Renata 379 SR521SW Batteries - 1.55V Silver Oxide 379 Watch Battery (2 Count) by renata
- **How much does it cost?** 30 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/16579455-renata-379-sr521sw-batteries-1-55v-silver-oxide-379-watch)

## Best For

- renata enthusiasts

## Why This Product

- Trusted renata brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Long-Lasting Charge:** Low self-discharge ensures your devices stay powered longer, even in storage.
- • **Leakage-Proof Design:** Engineered to resist corrosion and protect your valuable electronics.
- • **Trusted by Thousands:** Join over 2,000 satisfied users who rate it 4.6 stars for dependable performance.
- • **Swiss Precision Power:** Experience consistent, reliable energy with every battery—trusted by professionals worldwide.
- • **Versatile Compatibility:** Perfect for watches, cameras, keyless remotes, and more—one battery to rule them all.

## Overview

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.

## Description

Buy Renata 379 SR521SW Batteries - 1.55V Silver Oxide 379 Watch Battery (2 Count) on desertcart.com ✓ FREE SHIPPING on qualified orders

Review: 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👍
Review: Watch battery. - Perfect for my watch.

## Features

- Renata Silver Oxide Battery - Superior Leakage Resistance
- 379 SR521SW | Nominal Voltage - 1.55V | Nominal Capacity - 16 mAh
- High capacity retention on storage (low self-discharge)
- Swiss quality and consistently great performance, battery after battery.
- Works for toys, watches, cameras, calculators, car security alarm, keyless car remotes, organizers, computer equipment (memory backup battery) CMOS

## Technical Specifications

| Specification | Value |
|---------------|-------|
| 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 |

## Product Details

- **Battery Capacity:** 16 Milliamp Hours
- **Battery Cell Composition:** Silver Oxide
- **Brand:** Renata
- **Number of Batteries:** 2 Product Specific batteries required. (included)
- **Recommended Uses For Product:** Indoor/Outdoor

## Images

![Renata 379 SR521SW Batteries - 1.55V Silver Oxide 379 Watch Battery (2 Count) - Image 1](https://m.media-amazon.com/images/I/51TA2dTcJqS.jpg)
![Renata 379 SR521SW Batteries - 1.55V Silver Oxide 379 Watch Battery (2 Count) - Image 2](https://m.media-amazon.com/images/I/61GqtRw0laS.jpg)
![Renata 379 SR521SW Batteries - 1.55V Silver Oxide 379 Watch Battery (2 Count) - Image 3](https://m.media-amazon.com/images/I/61PArLW3Z9S.jpg)
![Renata 379 SR521SW Batteries - 1.55V Silver Oxide 379 Watch Battery (2 Count) - Image 4](https://m.media-amazon.com/images/I/61UFtGTndsS.jpg)
![Renata 379 SR521SW Batteries - 1.55V Silver Oxide 379 Watch Battery (2 Count) - Image 5](https://m.media-amazon.com/images/I/61XtwBnvXqS.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ RENATA 379 SR521SW Watch Battery
*by T***D on January 10, 2026*

$13 for 20 batteries 379 is good buy. Put 1 of them in my watch and it works great! SWISS MADE👍

### ⭐⭐⭐⭐⭐ Watch battery.
*by M***. on December 3, 2025*

Perfect for my watch.

### ⭐⭐⭐⭐⭐ Got my Bulova watch.
*by G***0 on November 21, 2025*

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.

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**Shop now:** [https://www.desertcart.pl/products/16579455-renata-379-sr521sw-batteries-1-55v-silver-oxide-379-watch](https://www.desertcart.pl/products/16579455-renata-379-sr521sw-batteries-1-55v-silver-oxide-379-watch)

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-02-02*