Casio diver watches are known for their exceptional durability, functionality, and rugged design. The G-Shock Frogman is one of the most renowned models, featuring ISO 200-meter water resistance, solar power, and a tough titanium case, making it ideal for professional divers. The Oceanus offers a more premium design, combining sleek titanium construction with advanced features like solar charging and Bluetooth connectivity. For a more sporty option, the Edifice series provides 100-meter water resistance, making it perfect for light diving and water sports.