Duracell 384 Battery, 1.5 Volt each (Pack of 5) - Walmart.com
Amazon.com: Duracell 384/392 Silver Oxide Button Battery, 1 Count Pack, 384/392 1.5 Volt Battery, Long-Lasting for Watches, Medical Devices, Calculators, and More : Health & Household
DURACELL 384/392, Button Cell Battery, ANSI, Silver Oxide, 1.5V DC, Diameter 0.304 in, Depth 0.130 in - 2HYN4|D384/392BPK - Grainger