![Found this old gem today... Vintage Casio SF-4000 'digital diary' from 1988. Featuring a whole 31,902 characters of battery backed storage. : r/retrobattlestations Found this old gem today... Vintage Casio SF-4000 'digital diary' from 1988. Featuring a whole 31,902 characters of battery backed storage. : r/retrobattlestations](https://preview.redd.it/found-this-old-gem-today-vintage-casio-sf-4000-digital-v0-ffx7e5b5p2h81.jpg?width=640&crop=smart&auto=webp&s=00636020c9f46d5c377a78bd92601f6326506481)
Found this old gem today... Vintage Casio SF-4000 'digital diary' from 1988. Featuring a whole 31,902 characters of battery backed storage. : r/retrobattlestations
![casio digital diary sf-4000 - calculadora con d - Acquista Altri oggetti di collezione su todocoleccion casio digital diary sf-4000 - calculadora con d - Acquista Altri oggetti di collezione su todocoleccion](https://cloud10.todocoleccion.online/coleccionismo/tc/2013/06/12/37687035.jpg)
casio digital diary sf-4000 - calculadora con d - Acquista Altri oggetti di collezione su todocoleccion
Retro Digital Diary Casio SF-4000 Organizer in Bayern - Bad Neustadt a.d. Saale | eBay Kleinanzeigen ist jetzt Kleinanzeigen
![Casio - SF-4000 - - Digital Diary - Casio SF4000 - Casio.ledudu.com - Casio pocket computer, calculator, game and watch library. - RETRO CALCULATOR FX PB SF LC SL HP FA Casio - SF-4000 - - Digital Diary - Casio SF4000 - Casio.ledudu.com - Casio pocket computer, calculator, game and watch library. - RETRO CALCULATOR FX PB SF LC SL HP FA](https://casio.ledudu.com/images/calculs/casio/machines/zoom/SF4000.jpg)
Casio - SF-4000 - - Digital Diary - Casio SF4000 - Casio.ledudu.com - Casio pocket computer, calculator, game and watch library. - RETRO CALCULATOR FX PB SF LC SL HP FA
![Casio SF-4000 Digital Diary Organizer, Mobile Phones & Gadgets, Mobile & Gadget Accessories, Other Mobile & Gadget Accessories on Carousell Casio SF-4000 Digital Diary Organizer, Mobile Phones & Gadgets, Mobile & Gadget Accessories, Other Mobile & Gadget Accessories on Carousell](https://media.karousell.com/media/photos/products/2016/08/28/casio_sf4000_digital_diary_organizer_1472369125_05a8b240.jpg)