--- product_id: 263818290 title: "394 Button Cell watch battery" brand: "renata" price: "8721CFA" currency: XOF in_stock: true reviews_count: 5 category: "Renata" url: https://www.desertcart.sn/products/263818290-394-button-cell-watch-battery store_origin: SN region: Senegal --- # Long-lasting 840mAh Capacity 1.55V Silver Oxide Power Precise 29g Weight 394 Button Cell watch battery **Brand:** renata **Price:** 8721CFA **Availability:** ✅ In Stock ## Summary > ⏰ Power your legacy with Renata’s precision battery! ## Quick Answers - **What is this?** 394 Button Cell watch battery by renata - **How much does it cost?** 8721CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/263818290-394-button-cell-watch-battery) ## 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 - • **Easy DIY Replacement:** Revive your vintage or modern timepiece without a costly visit to the jeweler. - • **Reliable Power Boost:** 1.55V voltage ensures your watch never misses a beat. - • **Enduring Battery Life:** Optimized 840mAh capacity for extended performance and fewer replacements. - • **Trusted by Watchmakers:** Renata’s expertise means premium quality you can count on. - • **Precision Fit Guaranteed:** Dimensional accuracy tailored for Swatch, Fossil, Timex & Casio. ## Overview The Renata 394 (SR936W) button cell battery delivers a precise 1.55V silver oxide power source with an optimized 840mAh capacity and exact dimensional stability. Compatible with top watch brands like Swatch, Fossil, Timex, and Casio, it offers long-lasting, reliable performance trusted by professionals and enthusiasts alike. ## Description NEW Renata #394 button cell battery for your Swatch, Casio, Timex, Rolex, or other fragile timepiece, watch, or other electronic device. Review: Ottima per il mio orologio Tissot - Perfetta per il ricambio del mio Tissot, senza andare dal orologiaio, funziona bene. Review: Hard to find battery works! - 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. ## Features - This is a #394 (SR936W) Renata watch batteries - These batteries are commonly required for Swatch, Fossil, Timex and Casio popular brands - Renata has first hand knowledge of what a high quality watch battery must stand for - Optimized volume/capacity ratio - Dimensional precision and stability ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B001C1G0BO | | Antenna Location | Watch | | Battery Capacity | 840 Milliamp Hours | | Battery Cell Type | Silver Oxide | | Battery Weight | 29 Grams | | Battery capacity | 840 Milliamp Hours | | Battery cell composition | Silver Oxide | | Best Sellers Rank | #150,666 in Fashion ( See Top 100 in Fashion ) #172 in Watch Batteries | | Brand | Renata | | Compatible Phone Models | Watch | | Customer Reviews | 4.6 out of 5 stars 555 Reviews | | Item Weight | 0.01 Ounces | | Manufacturer | Renata | | Model Name | Watch battery | | Model Number | 394 | | Number of Batteries | 1 Product Specific batteries required. | | Number of batteries | 1 Product Specific batteries required. | | Recommended uses for product | Watch | | Reusability | Single Use | | Unit Count | 1.0 Count | | Unit count | 1.0 Count | | Voltage | 1.55 Volts | ## Product Details - **Battery capacity:** 840 Milliamp Hours - **Battery cell composition:** Silver Oxide - **Brand:** Renata - **Number of batteries:** 1 Product Specific batteries required. - **Recommended uses for product:** Watch ## Images ![394 Button Cell watch battery - Image 1](https://m.media-amazon.com/images/I/61VB7-UWhsL.jpg) ## Questions & Answers **Q: Do all of the batteries come in a square blister package, or are they loosely placed in a standard business envelope?** A: They came in individual packets, but all attached together. You just tear off one packet along the perforated line to get a battery. **Q: IS THE BATTERY DURABLE** A: yes very durable has worked great put in in my watch an so far no problems **Q: Is the battery durable** A: Yes, 18 months so far. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Ottima per il mio orologio Tissot *by N***O on 24 June 2022* Perfetta per il ricambio del mio Tissot, senza andare dal orologiaio, funziona bene. ### ⭐⭐⭐⭐⭐ Hard to find battery works! *by D***2 on 18 November 2025* 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. ### ⭐⭐⭐⭐⭐ perfeito! *by N***L on 10 August 2024* perfeito! ## Frequently Bought Together - Renata 394 Button Cell watch battery - Renata 371 SR920SW Batteries - 1.55V Silver Oxide 371 Watch Battery (2 Count) - Duracell 395/399 Silver Oxide Button Battery, 1 Count Pack, 395/399 1.5 Volt Battery, Long-Lasting for Watches, Medical Devices, Calculators, and More --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sn/products/263818290-394-button-cell-watch-battery](https://www.desertcart.sn/products/263818290-394-button-cell-watch-battery) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-09-06*