G-SHOCK is a world-class Japanese watch that is known for its ruggedness and durability.

Development began with a one-line proposal that read, "A watch that won't break even if dropped". The entire surface is covered with urethane resin, and the module is placed so that it floats inside the case, mitigating the transmission of external shock. In the evolutionary process of this watch, which debuted with unparalleled shock resistance, the "MT-G" was born with the theme of "fusion of metal and resin". Named after the initials of "Metal Twisted G-Shock," the watch features a hybrid case made of metal and resin. It is a G-SHOCK for adults that combines solar power generation and time correction functions with sophisticated design.

Casio was founded in 1957 by the four Kashio brothers and initially grew with calculators. Casio boasted a high market share in wristwatches and electronic dictionaries, and in 1972 launched the Casio Mini, the world's first personal calculator.

In 1974, Casiotron, the world's first digital watch with a fully automatic calendar function that even supports leap years, was launched.

In 1995, Casio launched the QV-10, the world's first digital camera with an LCD monitor.

Casio's management philosophy is "Creation and Contribution". Products with new functions help people's lives and advance society. They can also bring enjoyment to many people and become the source of new culture. When a new product becomes popular, a new market is created and a variety of peripheral industries grow up. Through the provision of products and services, we hope to contribute to society from various aspects.

Higashine City, located in the east-central part of Yamagata Prefecture, is a major producer of fruit trees such as cherries and apples, and ranks first among all cities, towns, and villages in Japan in terms of cherry production. Yamagata Casio was established in Higashine City in 1979 as a manufacturing plant for Casio Computer Co. In 1983, Yamagata Casio began its own business, combining the technological expertise it had cultivated through its previous manufacturing activities. The company has built a completely drawing-less production system, including precision molds and plastic molding, and its technological capabilities are recognized around the world.