![Vintage 1988 Casio DB-31 Data Bank Digital Watch Telememo 30 w/ Manual, Mod 871 | WatchCharts Marketplace Vintage 1988 Casio DB-31 Data Bank Digital Watch Telememo 30 w/ Manual, Mod 871 | WatchCharts Marketplace](https://cdn.watchcharts.com/listings/fd0595ab-f07d-49f7-b187-2d1829df27f3.jpg)
Vintage 1988 Casio DB-31 Data Bank Digital Watch Telememo 30 w/ Manual, Mod 871 | WatchCharts Marketplace
![I have a Casio Telememo 30 from 2004. Never opened or serviced and the battery was never changed. I got it from my grandmother for my graduation and I never took it I have a Casio Telememo 30 from 2004. Never opened or serviced and the battery was never changed. I got it from my grandmother for my graduation and I never took it](https://preview.redd.it/wvhad9ty6oj61.jpg?width=640&crop=smart&auto=webp&s=fafc0c342f43b077735b4e3dc71274fb1cddcdde)
I have a Casio Telememo 30 from 2004. Never opened or serviced and the battery was never changed. I got it from my grandmother for my graduation and I never took it
![Rare Vintage CASIO Data Bank DB-34H 1600 Telememo 30 Illuminator 42mm Digital Wristwatch,collection Watch - Etsy Rare Vintage CASIO Data Bank DB-34H 1600 Telememo 30 Illuminator 42mm Digital Wristwatch,collection Watch - Etsy](https://i.etsystatic.com/37121889/r/il/261a35/4831340943/il_fullxfull.4831340943_2tnp.jpg)
Rare Vintage CASIO Data Bank DB-34H 1600 Telememo 30 Illuminator 42mm Digital Wristwatch,collection Watch - Etsy
![Vintage 1988 Casio DB-31 Data Bank Digital Watch Telememo 30 w/ Manual, Mod 871 | WatchCharts Marketplace Vintage 1988 Casio DB-31 Data Bank Digital Watch Telememo 30 w/ Manual, Mod 871 | WatchCharts Marketplace](https://cdn.watchcharts.com/listings/7efac1a2-e43c-4f56-8896-96c83c58b779.jpg)