![Casio F-30 Early 90's simple vintage. Just spent 20 minutes working out how to change the battery. See picture 2 to see why! : r/casio Casio F-30 Early 90's simple vintage. Just spent 20 minutes working out how to change the battery. See picture 2 to see why! : r/casio](https://i.redd.it/casio-f-30-early-90s-simple-vintage-just-spent-20-minutes-v0-l3higfetv6i81.jpg?width=3120&format=pjpg&auto=webp&s=59bd9cb577f1cd4f927d62d27aea285291afeb3b)
Casio F-30 Early 90's simple vintage. Just spent 20 minutes working out how to change the battery. See picture 2 to see why! : r/casio
![Casio F-30 Early 90's simple vintage. Just spent 20 minutes working out how to change the battery. See picture 2 to see why! : r/casio Casio F-30 Early 90's simple vintage. Just spent 20 minutes working out how to change the battery. See picture 2 to see why! : r/casio](https://preview.redd.it/casio-f-30-early-90s-simple-vintage-just-spent-20-minutes-v0-ynrzcs9tv6i81.jpg?width=2722&format=pjpg&auto=webp&s=ce31c550e6dc741d7ab84fd0028caaa5573c007a)
Casio F-30 Early 90's simple vintage. Just spent 20 minutes working out how to change the battery. See picture 2 to see why! : r/casio
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