This is a popular all-black model based on G-STEEL, which is a fusion of different materials such as metal and resin from G-SHOCK.
[Shockproof structure & 20 ATM waterproof] Adopts a shockproof structure that is resistant to shock and vibration. It is also equipped with 20 ATM water resistance, allowing it to be used in a variety of locations and situations.
[Tough Solar] Casio's unique solar charging system that stably operates various functions that are subject to heavy loads by combining a solar panel that generates electricity even with a small amount of light and a large-capacity secondary battery
[Mobile link function] Functions can be linked with compatible mobile phones via BluetoothⓇ communication.
[Other product specifications] Hand retraction function / World time / Stopwatch / Timer / Alarm / time signal / Indicator display / Power saving function / Full automatic calendar / 12/24 hour display switching / Operation sound ON / OFF switching function /Date and day of the week display/Double LED light
Brand: G-SHOCK
Model: GST-B400BB-1AJF
Model: GST-B400BB-1AJF
Case shape: Round
Windshield material: Mineral glass
Display type: Analog-digital
Clasp: Tongue buckle
Case material: Resin
Case diameter/width: 49.6 millimeters
Case thickness: 12.9 millimeters
Band material/type: Resin
Band size: 145mm-215mm
Band width: 28.2 millimeters
Band color: Black
Dial color: Black
Bezel material: Stainless steel
Bezel function: Fixed bezel
Calendar function: Day-date
Other functions: World time
Weight: 80 g
Movement: Quartz
Water resistance: 200 m