The GA2100GB-1A is Casio's slim octagonal G-Shock, the "CasiOak," dressed in a glossy black case and band with a gold-tone dial and gold index marks. At 11.8mm from bezel to case back it is one of the thinnest G-Shocks, and it keeps the full shock-resistant build, 200m water resistance and analog-digital display. It suits people who want G-Shock toughness in a dressier, more wearable package. Against the plain GA2100 it adds the gold dial and metal-clad look; against steel-cased G-Shocks it is lighter and slimmer but uses resin, not steel, for the case and band.
In stockShips from Canada · priced in CAD (CA$180.00) · duties may applyReturn policy
Owners treat the GA2100 line as the sweet spot of the G-Shock range: slim, light and tough, with the gold-dial version picked for its dressier look. Most praise the fit and legibility; complaints center on the glossy finish and the small digital window.
The Casio G-Shock GA-2100GB-1A is a slim digital-analog watch. Its design follows the first G-Shock, the DW-5000C, and it has the same octagonal form. The case measures 11.8mm from bezel to case back, and it has the same tough G-Shock construction.
The dial has a circular hairline finish and gold-color vapor deposition, as do the index marks. The bezel and band are glossy black.







