Men's Round Shape Rubber Strap Analog & Digital Wrist Watch 47 mm - Black - GA-100CF-1ADR

Chronograph Accuracy- 1/1000 second; Water Resistance - 20 ATM; Case Material- Resin; Engine- Casio Caliber 5081; Luminescence Markers- Yes

The G-Shock is a line of watches manufactured by the Japanese electronics company Casio, designed to resist mechanical stress, shock and vibration. G-Shock is an abbreviation for Gravitational Shock. The watches in the G-Shock line are designed primarily for sports, military and outdoors-oriented activities; all G-Shocks have a chronograph feature, 200 metre water resistance and an alarm, with either a digital display, analogue display or a combination of analogue and digital displays. Other features such as a countdown timer, world clock, and a backlight are included in most models. Newer high-end models in the line also feature GPS, directional, pressure and temperature sensors and radio controlled time adjustment known as WaveCeptor or Multi-Band.