In collaboration with the Charles Darwin Foundation, Casio just dropped a new high-contrast variant of the popular GA-2100 Series G-Shock — a.k.a. the CasiOak, due to its aesthetic similarities ...

Its simple, stylish design proved popular around the world and quickly earning the nickname 'Casioak' due to its octagonal ... green and blue of the DW-5600C-9BV (released in 1987), DW-5600B ...