The Casio G-Shock GD-400-9 is a digital sports watch featuring a matte olive-green resin case and band, oversized 55 × 49.7mm construction and protective metal face bars.

Features include shock resistance, mineral glass, four-city Multi Time, world time across 31 time zones, 1/100-second stopwatch, countdown timer, five alarms, Flash Alert, full auto-calendar and Super Illuminator LED. Its original water-resistance rating is 200 meters; current water resistance has not been pressure tested and is not guaranteed.

Casio classifies this reference as an Old Model. This preowned watch is in excellent condition with minimal signs of careful handling. It has been cleaned, fitted with a new battery, gasket lubricated and fully function tested. Includes an authentic G-Shock presentation tin