Casio G-Shock GBA-800LU-1A1 Quartz Shock Resistant 200M Men's WatchCasio G Shock GBA 800LU 1A1 Quartz Shock Resistant 200M Men's Watch Create timer combinations in your smart phone via Bluetooth and send them to the watch to execute them in sequence or store all your stopwatch measurement data and view them at will later for reference, this G Shock lets you plan and record all your activities, from workouts to working out the balance sheets within stipulated times. The band resists sliding.