Amazon.com: Duracell 379 Silver Oxide Button Battery, 1 Count Pack, 379 1.5 Volt Battery, Long-Lasting for Watches, Medical Devices, Calculators, and More : Health & Household
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Watch Battery Renata 379 — PERRIN
1x / 2x SR521SW SR 63 VARTA V379 / 379 SR 521 Watch cell / Battery | eBay