ELEGANCE AND TECHNOLOGY G-Shock is a line of watches manufactured by Japanese electronics company Casio, designed to resist mechanical 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; nearly all G-shocks are digital or a combination of analog and digital and have a stopwatch feature, countdown timer, electroluminescent backlight and 200-metres of water resistance.
Product Description
CASIO G-SHOCK GST-B400X-1A4JF GST-B400X-1A4 solar drive 20 bar watch
Product specification
Case size (length x width x thickness)
46.6 x 49.6 x 12.9 mm
mass
74 g
Case / bezel material
Carbon / stainless steel
band
Resin band
structure
Impact resistant structure (shock resist)
Carbon core guard structure
Waterproof
Water resistant to 20 bar
Power supply / battery life
Tough solar (solar charging system)
Mobile link / app linkage function
Mobile link function
Mobile link function (function interlocking by Bluetooth communication with compatible mobile phones)
