Casio Men's G-Shock GA100B-4A Red Polyurethane Analog Quartz Sport Watch
- Analog Quartz Movement
- Case diameter: 50mm
- Mineral Crystal
- Rubber case with Polyurethane band
- Water-resistant to 50 Meters / 165 Feet / 5 ATM
With the launch of its first watch in November 1974, Casio entered the wristwatch market at a time when the watch industry had just discovered digital technology. As a company with cutting-edge electronic technology developed for pocket calculators, Casio entered this field confident that it could develop timepieces that would lead the market. Casio transformed the concept of the watch from a mere timepiece to an information device for the wrist.