Button Cell Battery, 11mAh, Silver Oxide
From Amazon
Varta Watch Battery Type: V317 Voltage: 1.55 V Size: 1.6 mm Diameter: 5.8 mm Blister Pack with PDA-Point
Conrad Electronic
Varta Button cell SR516 1.55 V 1 pc(s) 10.5 mAh Silver oxide SILVER Coin V317/SR62 NaBli 1