The Japanese company CASIO Computer Ltd. is one of the best known electronics companies in the world. CASIO manufactures, alongside electronic labeling systems, musical instruments and calculators, screens and other electronic components. But above all, CASIO has established itself as a leading manufacturer, thanks to the production of watches and digital cameras. The multinational company CASIO Computer Ltd. date back to the Kashio Seisakujo company, founded in Tokyo in 1946 by the four Kashio brothers. The requirement of its founders was to create useful and original products for everyday life. CASIO watches begin with the Casiotron, the first digital wristwatch presented in 1974, the company succeeds in breaking into the watch market. In 1983, CASIO launched the creation of G-SHOCK watches, a new benchmark. Even today, G-SHOCK watches are iconic products and new models are permanently added to this flagship range of the brand. Casio combines technological prowess and introduces them into various very varied watch models: G-SHOCK, BABY-G, EDIFICE, CASION SPORT, CASIO Collection, CASIO Radio-Controlled Watches.