Casio Edifice Mobile Link Analog Solar EQB-1200D-1A EQB1200D-1 100M Men's Watch This is one watch that’s great for speed sports; is slim and therefore comfortable to wear both on and off the track, keeps dual time and runs on Solar power. It helps you to find your phone, thanks to its Bluetooth-capabilities; features a multi-hand, hi-spec chronograph that doesn’t limit your usage due to battery issues and lets you switch easily between local time and world time through its android-based app.