Amazon.com: Energizer 393BP Watch Battery : Health & Household
Renata 393 Swiss Made Button Cell watch battery - Walmart.com
ENERGIZER S-O BATTERY 393 - International Jewelers Supply
Amazon.com: Duracell 309/393 Silver Oxide Button Battery, 1 Count Pack, 309/ 393 1.5 Volt Battery, Long-Lasting for Watches, Medical Devices, Calculators, and More : Health & Household