Superior Micro Alkaline Cell Coin Battery 2 Blister Packs of 10 batteries.
Equivalent to 191, GP191, LR55, V8GA, AG8. Dimentions: 11.6 mm diameter x 2.05 mm height. Packed in new Maxell hologram packaging. Date coded. Fresh from Japan, these are the freshest and best quality batteries in the USA.
This is from the American Watchmakers-Clockmakers Institute 1998-2000 Edition Handbook on Battery Number System: AWI A07, Duracell D191, D191A, Interstate Batteries AWAC0285, Gold Peak (Sylva Cell) GP191, Maxell LR1120, Seiko LR1120, Sony 191, Varta V8GA, I.E.C. LR55, And Misc. Battery numbers A3, 1A3.