G-7900A-4D

Battery Life / Accuracy
Approximately 2 years (+/-15 seconds per month)

Crystal
Mineral crystal

Light
Electro-luminescent backlight (auto light switch, selectable illumination duration, afterglow)

Case & Band Material
Resin case with resin band

Water Resistance
200m

Case Size
Thickness: 17.7 mm
Diameter: 50.0 mm
Length: 52.4 mm

Other Specifications
Shock resistant
Low temperature resistant (-20°C)
World time (29 time zones)
Moon data (moon age of the input data)
Tide graph (tide graph for the specific date and time)
1/100-second stopwatch
Countdown timer
Flash alert (flashes with buzzer that sounds)
5 multi-function alarms
Hourly time signal
Full auto-calendar (to year 2099)
Button operation tone on/off
12/24-hour format
Regular timekeeping (digital display)