At this angle, you can see the translucence of the genuine sapphire crystal bezel insert used in the Oceanus Manta S7000, which we reviewed last year. These are great-looking watches, featuring slender, lightweight titanium cases with integrated matching bracelets. They’re equipped with Bluetooth time syncing for incredible precision, and solar-powered for hassle-free recharging of the battery-powered quartz movement. The result is a timepiece unlike any Casio you’ve ever seen.