Untested but not unloved. See pics. Needs batteries. I don’t have 3 of the needed kind to test it.
CASIO DIGITAL DIARY Sf-7500 Organizer Electronic Computer Vintage
VINTAGE DIGITAL DIARY - CASIO SF-4600B - 64KB $19.74 - PicClick
VINTAGE CASIO BOSS SF-9500 Black 64KB Memory Pocket Computer
Casio - SF-4300A - - Digital Diary - Casio SF4300A - Casio.ledudu
Casio Digital Diary in Office Organisers for sale
A ny problems or issues can be sorted out in a speedy and amicable way.
Casio SF-4300A Digital Diary Handheld Electronic
Casio Digital Diary in Office Organisers for sale
Old Organizers Collection - Casio SF-4300B
Casio+Sf-4600+64kb+Digital+Diary+Organizer+With+Manual+Parts+as+Is
VINTAGE 1980S CASIO SF-4500 Digital Diary Calculator Memo Calendar