1/3N size cell. 3 Volt Lithium Battery. Fits models; Fuji STX-1 SLR, Kinon X-370, Minolta AF C, Minolta X-300, Minolta X-300S, Minolta X-370S, Minolta X-700, Minox 35 AF, Minox 35 GoldKNOPF, Minox 35 GSE, Minox 35 GT, Minox 35 GTE, Minox GSE, Minox GT, Minox GTE, Minox GTX, Nikon F3, Nikon FA, Nikon FE, Nikon