As we are a Japanese shop, please take the following precautions when purchasing certain products. [Precautions when using electrical appliances] When using electrical appliances, please note that the voltage is different from that in Japan and may cause malfunctions. The plug type is Japanese type (A or B type), so please check the voltage before using a transformer. Please note that a transformer is different from a conversion adapter. We are not responsible for malfunctions caused by use without a transformer. In 2024, Casio Watch will celebrate its 50th anniversary. To commemorate this anniversary year, Casio's major watch brands have released a limited edition model that expresses the universal yet ever-changing ``sky and sea.'' [Shockproof structure] Shockproof structure that is resistant to shock and vibration [10 ATM Water Resistant] Waterproof performance is 10 ATM water resistant. [World Time] Time display in 48 cities around the world (31 time zones, daylight saving time setting function) + UTC (Coordinated Universal Time), home time city switching function [Set contents] The main unit, original packaging, instruction manual, and warranty are included in the instruction manual. *For other product specifications, please check the description column.