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

Crystal
Mineral crystal

Light
Electro-luminescent backlight (full auto EL backlight, afterglow)

Case & Band Material
Resin case with resin band

Water Resistance
200m

Case Size
Thickness: 13.4 mm
Diameter: 42.8 mm
Length: 48.9 mm

Other Specifications
Shock resistant
Flash alert
1/100-second stopwatch
Countdown timer
Multi-function alarm
Hourly time signal
Full auto-calendar (to year 2099)
12/24-hour format
Regular timekeeping (digital display)