The g shock gr 8900a watch is a large case design features super auto led light creating an easy to read timepiece the watch is housed in a multi dimensional white case with shock resistance powered with solar this is a multifunctional watch including 5 daily alarms auto calendar and 200m water resistant12 24 hour format times can be displayed in either a 12 hour or 24 hour format 5 daily alarms the daily alarm reminds you about recurring events with an acoustic signal at the time yo