CASIO G-Shock Bluetooth Solar Master Of G - Air Gravitymaster

Smartphone Link/App Connectivity Features
Smartphone Link feature

Mobile link (Wireless linking using Bluetooth®)
Apps

CASIO WATCHES
App connectivity feature

Auto time adjustment
Easy watch setting
Approximately 300 world time cities
Flight log
Phone finder

Watch Features
World time

Dual time (Home City time swapping)
Stopwatch

1-second stopwatch
Measuring capacity: 23:59'59.
Measuring modes: Elapsed time, split time
Timer

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)
Alarm/hourly time signal

Daily alarm
Light

LED light (Super Illuminator)
Afterglow
Light color

LED:White
Calendar

Full auto-calendar (to year 2099)
Energy saving feature

Power Saving (hands stop to save power when the watch is left in the dark)
Battery display/alert

Battery level indicator
Run time

Approx. battery operating time:
5 months on rechargeable battery (operation period with normal use without exposure to light after charge)
18 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)
Accuracy

Accuracy: ±15 seconds per month (with no mobile link function)
Other features

Date display
Day indicator
Regular timekeeping:
Analog: 3 hands (hour, minute (hand moves every 10 seconds), second), 3 dials (dual time hour and minute, dual time 24-hour, day)