Casio Rainbow Gray GA2100

Case / bezel material: Carbon / Resin?
Resin Band
Shock Resistant
Mineral Glass
200-meter water resistance
Double LED light
LED light for the face (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
LED backlight for the digital display (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
World time
31 time zones (48 cities + coordinated universal time), daylight saving on/off, Home city/World time city swapping
1/100-second stopwatch1/100 second (for the first 60 minutes)
1 second (after 60 minutes)
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 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments)
5 daily alarms
Hourly time signal
Hand shift feature
Full auto-calendar (to year 2099)
12/24-hour format
Button operation tone on/off
Regular timekeeping
Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (day)
Digital: Hour, minute, second, pm, month, date
Accuracy: ±15 seconds per month
Approx. battery life: 3 years on SR726W x 2
Size of case: 48.5×45.4×11.8mm
Total weight: 51g