SR43 SR1142 LR1154D D386 10L124. 0%Hg ALKALINE WATCH, REMOTE, CALCULATOR, CLOCK, LIGHTER, TOY or SMALL DEVICE BATTERY. The AG series of button batteries have 14 different sizes (AG0-AG13 1.5v-1.55v respectively), but have hundreds of different numbers that match one of the sizes.
eBay