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 GBA-900RD-4AJF GBA-900RD-4A Bluetooth 20 bar watch
Product specification
Case size (length x width x thickness)
51.3 x 48.9 x 16.6 mm
mass
61 g
Case / bezel material
resin
band
Resin band
structure
Impact resistant structure (shock resist)
Waterproof
Water resistant to 20 bar
Power supply / battery life
Battery life: about 2 years
Mobile link / app linkage function
Mobile link function
Mobile link function (Automatic Connection, function interlocking with compatible mobile phones via Bluetooth® communication)
App
Compatible with "G-SHOCK MOVE"
Exterior
Glass
Inorganic glass
Band wearable size
145 to 215 mm
Clock function
World time
Dual time (with time exchange function with home time)
Stopwatch
Stopwatch (1/100 second (less than 1 hour) / 1 second (1 hour or more), 24-hour counter, with lap / split, distance / pace switching display, automatic / manual lap function, automatic lap notification, measurement data up to 45 This memory (measurement start month / day / hour / minute, total time / distance / average pace / calories burned, lap number, time / distance / average pace for each lap / split)
timer
Timer: Timer for interval measurement that can set up to 5 times (set unit: 1 second, maximum set: 60 minutes, measurement in 1 second units, auto repeat, 5 seconds countdown auto start, repeat (up to 1 to 20 times) Can be set) With function)
Alarm / time signal
5 time alarms / time signal
Light
Double LED light: LED light for dial (auto light, super illuminator, afterglow function, with afterglow time switching (1.5 seconds / 3 seconds)), LED backlight for LCD part (auto light, super illuminator, afterglow function, With afterglow time switching (1.5 seconds / 3 seconds)
Light color
LED: white
calendar
Fully automatic calendar
Operation sound ON / OFF switching function
Operation sound ON / OFF switching function
Needle position correction function
Needle evacuation function (If the needle overlaps with the LCD display and is difficult to see, the needle can be temporarily retracted from above the LCD display).
accuracy
* If it does not work with a smartphone, it will operate with normal quartz accuracy (average monthly difference ± 15 seconds).
Other functions
Airplane mode
User profile setting function
12/24 hour system display switching
Date display (month / day display replacement)
Sensor function details
Life log measurement function (measures calories and distance based on step count measurement by accelerometer) * <Daily data display> including basal metabolism> Step count, calories, distance
