Casio G-shock Baby-g Couple Watch SLV-21B-2DR Digital Rubber Strap Watch

G-shock
Case / bezel material: Resin
Resin Band
Shock Resistant
Mineral Glass
200-meter water resistance
Electro-luminescent backlight
Afterglow
Flash alert
Flashes with buzzer that sounds for alarms, hourly time signals
1/100-second stopwatch
Measuring capacity: 00'00"00~59'59"99 (for the first 60 minutes)
1:00'00~23:59'59 (after 60 minutes)
Measuring unit: 1/100 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)
Other: Auto-repeat
Multi-function alarm
Hourly time signal
Full auto-calendar (to year 2099)
12/24-hour format
Regular timekeeping: Hour, minute, second, pm, month, date, day
Accuracy: ±15 seconds per month
Battery: CR2016
Size of case : 48.9×42.8×13.4mm
Total weight : 53g

Baby-g
Case / bezel material: Resin
Resin Band
Shock Resistant
Mineral Glass
200-meter water resistance
Electro-luminescent backlight
Selectable illumination duration (1.5 seconds or 3 seconds), afterglow
World time
29 time zones (48 cities), daylight saving on/off
1/100-second stopwatch
Measuring capacity: 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
Full auto-calendar (to year 2099)
12/24-hour format
Button operation tone on/off
Regular timekeeping: Hour, minute, second, am/pm, date, day
Accuracy: ±30 seconds per month
Battery: CR1616
Size of case : 44.7×40×12.5mm
Total weight : 44g