This is a current listing for the main unit only. Please be aware that there is some wear and tear, and only purchase if you are comfortable with this. This is a Bluetooth®-equipped MT-G model, featuring advanced technology in a shock-resistant body that fuses metal and resin. It employs a "core guard structure" that integrates the lugs connecting the band with a pipe to protect the module. Carbon fiber reinforced resin is used for the center case, achieving both weight reduction and shock resistance. The first mid-size design in the MT-G series and a soft urethane band enhance wearability, and the connection between the case and band features a vibration-resistant structure. Mirror polishing is applied to the edges of each metal part, and hairline processing is applied to each surface to pursue beauty. The case has been treated with black IP. The use of sapphire glass and delicate engraving by Casio's Yamagata factory processing technology enhance the texture. It connects to the dedicated "CASIO WATCHES" app via Bluetooth® communication to obtain time information. It also has practical functions such as a high-intensity LED light and world time, which can be stably powered by "Tough Solar."