The GA-400-1ADR is a big-case G-SHOCK featuring the model’s signature large rotary switch for intuitive operation, a layered multi-dimensional dial with two LCD windows, high-brightness LED illumination, shock resistance, and 200‑meter water resistance.
Case Size: 55 × 51.9 × 18.3 mm
Weight: 70 g
Case Material: Resin
Band Material: Resin
Glass: Mineral glass
Display: Analog-digital; rotary switch at 3 o’clock; dual LCDs
Functions: World time; 1/100‑s stopwatch; countdown timer with auto-switch to elapsed time; 5 daily alarms; auto-calendar; 12/24‑hour format
