In terms of functionality, this G-SHOCK watch (55 mm) lives up to expectations. Shock and magnetic field resistance is coupled with impressive water resistance, waterproof to a depth of 200 meters. The power supply guarantees a battery life of approximately 2 years. Furthermore, the world time function offers 29 different time zones, allowing users to synchronize with any corner of the world. The precision stopwatch and countdown timer provide versatility at every turn, while the 5 daily alarms and time signal keep users in tune with their schedule.