[. . . ] [. . . ] Battery Replacement: Follow the instructions below to replace the battery in your Presto watch.
1
Open battery hatch with a coin by turning counter-clockwise until dot on the battery hatch aligns with the symbol.
2
Remove old battery and dispose properly.
3
Insert new battery into watch with type facing you.
4
Realign dot and the symbol. Take care not to damage the battery hatch rubber gasket.
5
Turn battery hatch clockwise until the dot aligns with the symbol.
6
Press and hold both buttons for 3 seconds to restart watch. [. . . ] [. . . ]