![Casio] found this DB 500 in my grandfather's collection. Need more information about this, is it worth anything? Should I replace the battery? : r/Watches Casio] found this DB 500 in my grandfather's collection. Need more information about this, is it worth anything? Should I replace the battery? : r/Watches](https://preview.redd.it/o71z2wglbtq71.jpg?auto=webp&s=fca2c0f8497131108cceb14af536d8b075c10a62)
Casio] found this DB 500 in my grandfather's collection. Need more information about this, is it worth anything? Should I replace the battery? : r/Watches
![Casio Mens DBC310-1 Databank 300 Digital Watch (Discontinued by Manufacturer) for Sale in Chula Vista, CA - OfferUp Casio Mens DBC310-1 Databank 300 Digital Watch (Discontinued by Manufacturer) for Sale in Chula Vista, CA - OfferUp](https://images.offerup.com/zf_g4a_SyjGjk4H35iexsmJJFcU=/483x644/af2f/af2f3d8d645c4d3a95fb8cee20f98437.jpg)
Casio Mens DBC310-1 Databank 300 Digital Watch (Discontinued by Manufacturer) for Sale in Chula Vista, CA - OfferUp
![Maxell CR2016 Fresh Date Coded 5 Batteries - CR2016 Battery Group - Watch Batteries - AA AAA batteries - Rechargeable Batteries - Discount Batteries - Shipped Free in US Maxell CR2016 Fresh Date Coded 5 Batteries - CR2016 Battery Group - Watch Batteries - AA AAA batteries - Rechargeable Batteries - Discount Batteries - Shipped Free in US](https://www.batterybob.com/productimg/watch/101156.jpg)
Maxell CR2016 Fresh Date Coded 5 Batteries - CR2016 Battery Group - Watch Batteries - AA AAA batteries - Rechargeable Batteries - Discount Batteries - Shipped Free in US
![Casio Illuminator Telememo Databank DBC 300 - Calculator LCD - Men's Wristwatch - Vintage 1980s - Catawiki Casio Illuminator Telememo Databank DBC 300 - Calculator LCD - Men's Wristwatch - Vintage 1980s - Catawiki](https://assets.catawiki.nl/assets/2016/1/13/b/6/8/b68f8062-b9a9-11e5-8cab-d077b86aa79b.jpg)