Casio G-Shock GX56BB-1D

From G-SHOCK, the watch that sets the standard for timekeeping toughness, comes the latest models to feature basic G-SHOCK black that captures the essence of one-tone resin. This model is based on the GX-56, which is designed to withstand impact from any direction. A simple matte black finish allows the form of the watch itself to come out, while the buckle have a black ion plate finish.
Everything about this new basic black model capture the very essence of the rough, tough basic G-SHOCK image.
Electro-luminescent backlight
Full auto EL light, selectable illumination duration(1.5 seconds or 3 seconds), afterglow
Tough Solar (Solar Powered)
World time
31 time zones (48 cities + coordinated universal time), daylight saving on/off
1/100-second stopwatch
Measuring capacity: 23:59'59.99''
Measuring modes: Elapsed time, split time, 1st-2nd place times
Countdown timer
Measuring unit: 1 second
Countdown range: 24 hours
Countdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments)
5 daily alarms (with 1 snooze alarm)
Hourly time signal
Battery level indicator
Power Saving (display goes blank to save power when the watch is left in the dark.)
Full auto-calendar (to year 2099)
12/24-hour format
Button operation tone on/off
Regular timekeeping: Hour, minute, second, pm, month, date, day
Accuracy: ±15 seconds per month
Approx. battery operating time:
11 months on rechargeable battery (operation period with normal use without exposure to light after charge)
27 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)
Size of case / Total weight
Size of case : 55.5×53.6×17.5mm
Total weight : 88g