This Casio G - Shock watch is perfect for sports lovers and frequent travelers. You can wear it while working out, swimming, or during your overseas trips. It has a case size of approximately 49mm x 45.9mm x 15.8mm, which is suitable for most wrist sizes. Its shock and magnetic resistance and 200M water - resistance ensure it can withstand tough conditions. The world - time feature with 29 time zones (48 cities) is very useful for those who are always on the move.