Seiko CR2412 & CR1612 Batteries
cells are for use in Seiko 4F & 8F series movements.
They are supplied with the battery insulator sticker
already applied. The red plastic insulator that was
originally used in these movements has been discontinued.
Seiko recommends replacement with the new insulator
sticker already supplied with the new batteries.
CR2412 is used in the Seiko 8F32A, 8F33A, 8F35A and
8F56A. The CR1612 is used in the 4F32A, 4F56A.