Unkillable G-SHOCK. Appeared in 1983 - the world's first truly "indestructible" watch. They met the requirements of the "three dozen": to withstand a fall from a height of 10 m and a pressure of 10 atmospheres, as well as to work for 10 years without changing the battery. Nowadays G-SHOCK is a separate brand, very large: the number of models is in the thousands, the total release is tens of millions. In principle, G-SHOCK, like other CASIO products, is an extremely functional product, moreover, it is massive and inexpensive. However, among the G-SHOCK models there are also exclusive ones, in gold, in sapphire cases and even with jewelry finishing. In each of the past three and a half decades of G-SHOCK history, at least one revolutionary breakthrough can be distinguished.