Shock Resistant. battery life: 3 years on SR726W X 2. Case and bezel material: Resin / Stainless steel. Accuracy: ±15 seconds per month. Button operation tone on/off. Countdown range: 24 hours. Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.).
Basically is a GB 2100 without the "plastic" look, this is polished metal with beatiful finishings, the canvas strap gives that "breathe" that resin or silicon doesnt.
Super comfortable to wear, LED ligth for dark eviroment, luminous hands, dust proof, water proof, casio reputation, this watch has everything on it