Casio Watch Edifice Red Bull Limited Edition Chronograph EFR-549RBP-2AER. The Casio Watches EDIFICE is one of the most technologically advanced watches of its kind. These models represent the ideal mix of intelligent functionality, sporty elegance and innovative technology. Selected series can be controlled via Bluetooth or Smart Access. Bluetooth technology allows the watch to be operated using a compatible smartphone, while the Smart Access system features an electronic crown that gives the user access to the important functions of the watch.?