Casio G-Shock Minimal Design GD-B500-1JFProduct Highlights Introducing the GD B500 from the G SHOCK tough watch series, which has been evolving relentlessly since its debut in 1983. This model embodies a minimalist design achieved through downsizing. The digital GD B500, tailored to modern needs, features a sleek and futuristic look by eliminating all unnecessary elements. With a case diameter of 46. 341. 5mm and a thickness of 11mm, it is significantly smaller than previous G SHOCK models.