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⏳ Power your legacy with Renata’s precision battery!
The Renata 394 button cell battery (SR936W) is a high-quality, precision-engineered power source designed for popular watch brands like Swatch, Fossil, Timex, and Casio. It offers an optimized capacity-to-size ratio for long-lasting performance and dimensional stability for easy, damage-free replacement. Trusted by professionals, Renata batteries ensure your timepieces keep ticking flawlessly.














| ASIN | B001C1G0BO |
| Antenna Location | Watch |
| Battery Capacity | 840 Milliamp Hours |
| Battery Cell Type | Silver Oxide |
| Battery Weight | 29 Grams |
| Best Sellers Rank | #204,830 in Fashion ( See Top 100 in Fashion ) #222 in Watch Batteries |
| Brand | Renata |
| Compatible Phone Models | Watch |
| Customer Reviews | 4.6 4.6 out of 5 stars (522) |
| Item Weight | 0.01 Ounces |
| Manufacturer | Renata |
| Model Name | Watch battery |
| Model Number | 394 |
| Number of Batteries | 1 Product Specific batteries required. |
| Reusability | Single Use |
| Unit Count | 1.0 Count |
| Voltage | 1.55 Volts |
N**O
Perfetta per il ricambio del mio Tissot, senza andare dal orologiaio, funziona bene.
D**2
It was mailed to me via regular mail from Quebec. This hard to find locally battery worked to revive my almost 22 year old Swatch and I'm pretty happy about that. The expiry date on the package is October 2027 (it is now November 2025). Fingers-crossed the battery lasts at least that long.
N**L
perfeito!
A**R
Parfait
D**I
Product as described. Top quality.
Trustpilot
3 days ago
2 weeks ago