![Casio CBA-10 Calculator Financial Scientific Watch Module 641 Vintage Nerd CFX-400 CFX-40 - Etsy Norway Casio CBA-10 Calculator Financial Scientific Watch Module 641 Vintage Nerd CFX-400 CFX-40 - Etsy Norway](https://i.etsystatic.com/14120143/c/2076/2076/0/0/il/f08e54/3688845020/il_300x300.3688845020_tma7.jpg)
Casio CBA-10 Calculator Financial Scientific Watch Module 641 Vintage Nerd CFX-400 CFX-40 - Etsy Norway
Vintage CASIO CFX - 400 watch - Scientific calculator - Collectible - price reduced to $550 | WatchUSeek Watch Forums
![Saturday watch here, Casio made some great lines of timepieces, but the calculator watches are probably the most recognized, this one is the Casio CFX-400! Capable of normal timekeeping, it was a Saturday watch here, Casio made some great lines of timepieces, but the calculator watches are probably the most recognized, this one is the Casio CFX-400! Capable of normal timekeeping, it was a](https://i.redd.it/2kiylv521qb61.jpg)
Saturday watch here, Casio made some great lines of timepieces, but the calculator watches are probably the most recognized, this one is the Casio CFX-400! Capable of normal timekeeping, it was a
![Casio CFX-400 Scientific Calculator Watch Module 463 - NEW OLD STOCK - RARE FIND | WatchCharts Marketplace Casio CFX-400 Scientific Calculator Watch Module 463 - NEW OLD STOCK - RARE FIND | WatchCharts Marketplace](https://cdn.watchcharts.com/listings/d8a2d738-b21a-4e11-b2c5-f2d960ef0bd7.jpg?d=300x300)