What does watch battery lr626 mean?
LR626 is a battery model
and the name of a battery. It is a zinc-manganese button cell with a
nominal voltage of 1.50 volts and a maximum open circuit voltage of 1.65
volts. LR626 batteries are often used in watches, and can be used in
many brands of watches such as Casio, Tissot, and Longines.