---
product_id: 300019461
title: "Renata Batteries 379 / SR 521 SW Button Cell, Silver 1.55V, Swiss Made (Set of 2 Pcs) …"
brand: "renata"
price: "€ 5.99"
currency: EUR
in_stock: true
reviews_count: 12
category: "Renata"
url: https://www.desertcart.be/products/300019461-renata-batteries-379-sr-521-sw-button-cell-silver-1
store_origin: BE
region: Belgium
---

# Renata Batteries 379 / SR 521 SW Button Cell, Silver 1.55V, Swiss Made (Set of 2 Pcs) …

**Brand:** renata
**Price:** € 5.99
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Renata Batteries 379 / SR 521 SW Button Cell, Silver 1.55V, Swiss Made (Set of 2 Pcs) … by renata
- **How much does it cost?** € 5.99 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/300019461-renata-batteries-379-sr-521-sw-button-cell-silver-1)

## Best For

- renata enthusiasts

## Why This Product

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

## Description

Renata SR521SW Watch Batteries, 2 Batteries

Review: Battery size problem - Not same product my watch battery size is too big,not suitable in my watch.
Review: Good - Works well on replacement, however the expiry date is too close - 01/27 and today is 07/25, just another 1.5 years for expiry

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001MRPHVC |
| Amperage | 1.55 Amps |
| Antenna Location | Watch |
| Battery Capacity | 1.5 Volts |
| Battery Cell Composition | Lithium |
| Battery Cell Type | Lithium |
| Brand | Renata |
| Brand Name | Renata |
| Compatible Phone Models | 379 |
| Customer Reviews | 4.4 out of 5 stars 2,322 Reviews |
| Item Dimensions | 10 x 10 x 10 Millimeters |
| Item Type Name | watch |
| Item Weight Unit of Measure | 9 g |
| Model Number | 379 |
| Net Quantity | 2 Count |
| Number of Batteries | 1 LR44 batteries required. |
| Recommended Uses For Product | Watch |
| Reusability | Single Use |
| UPC | 785618379310 785618327311 785618379303 |
| Unit Count | 2 Count |
| Voltage | 1.55 Volts |

## Product Details

- **Battery Capacity:** 1.5 Volts
- **Battery Cell Composition:** Lithium
- **Brand:** Renata
- **Item Weight:** 9 g
- **Item dimensions L x W x H:** 10 x 10 x 10 Millimeters
- **Net Quantity:** 2 Count
- **Number of Batteries:** 1 LR44 batteries required.
- **Recommended Uses For Product:** Watch
- **Reusability:** Single Use
- **Voltage:** 1.55 Volts

## Images

![Renata Batteries 379 / SR 521 SW Button Cell, Silver 1.55V, Swiss Made (Set of 2 Pcs) … - Image 1](https://m.media-amazon.com/images/I/71b4aLZe+DL.jpg)
![Renata Batteries 379 / SR 521 SW Button Cell, Silver 1.55V, Swiss Made (Set of 2 Pcs) … - Image 2](https://m.media-amazon.com/images/I/61XtwBnvXqS.jpg)
![Renata Batteries 379 / SR 521 SW Button Cell, Silver 1.55V, Swiss Made (Set of 2 Pcs) … - Image 3](https://m.media-amazon.com/images/I/71DzPTuC5wS.jpg)
![Renata Batteries 379 / SR 521 SW Button Cell, Silver 1.55V, Swiss Made (Set of 2 Pcs) … - Image 4](https://m.media-amazon.com/images/I/51TA2dTcJqS.jpg)
![Renata Batteries 379 / SR 521 SW Button Cell, Silver 1.55V, Swiss Made (Set of 2 Pcs) … - Image 5](https://m.media-amazon.com/images/I/61UFtGTndsS.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Battery size problem
*by A***R on 13 August 2022*

Not same product my watch battery size is too big,not suitable in my watch.

### ⭐⭐⭐⭐ Good
*by S***K on 12 July 2025*

Works well on replacement, however the expiry date is too close - 01/27 and today is 07/25, just another 1.5 years for expiry

### ⭐ Not working
*by P***R on 23 April 2026*

Not working as expected

## Frequently Bought Together

- Renata Silver Oxide Watch Battery For 379 Button Cell
- 2 Renata 377 SR626SW Silver Oxide Zero Mercury Electronic Batteries
- 2 Renata 364 SR621SW Silver Oxide Zero Mercury Electronic Batteries

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**Shop now:** [https://www.desertcart.be/products/300019461-renata-batteries-379-sr-521-sw-button-cell-silver-1](https://www.desertcart.be/products/300019461-renata-batteries-379-sr-521-sw-button-cell-silver-1)

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*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-08-02*