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Amazon.com: Zshion for CASIO Pro Trek WSD-F30 Screen Protector,9H Hardness Tempered Glass Screen Protector for CASIO WSD F30 with Anti-fingerprint Bubble-Free Crystal Clear (2 Pack) : Cell Phones & Accessories
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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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