This sleek all-black G-Shock has an octagonal design inspired by the dimensions of the first G-SHOCK in 1983. G-Shock GA2100 invisible all-black timepiece has analog and digital display functions and is packaged in a simple design, without any nonsense that sacrifices the horizontal toughness of G-SHOCK. It embeds the latest carbon fiber core protection technology in a more slender and more delicate case, and has an interchangeable resin strap that can be customized according to any clothing and occasion. It also has a water resistance of 200 meters and a world time of 31 time zones. Click here for more details about G-Shock GA2100.