Case size (L× W× H) 51.9 × 50.9 × 13.2 mm Case and bezel material Case / bezel material: Carbon / Stainless steel Band Resin Band Construction TRIPLE G RESIST (Shock resistant, Centrifugal force resistant, Vibration resistant) Carbon Core Guard structure Water resistance 200-meter water resistance Power supply and battery life Tough Solar (Solar powered) 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 Time amp; place Watch status display Self check Phone finder lass Sapphire crystal with glare-resistant coating Crown Screw Lock Crown Surface treatment Pink gold ion plated bezel Compatible band size 145 to World time Dual time 27 time zones, Home city time swapping, auto summer time (DST) switching Stopwatch 1-second stopwatch Measuring capacity: 23:59 #39;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-second increments) Alarm/hourly time signal Daily alarm Light LED light (Super Illuminator) Afterglow Light color LED:White Calendar Full auto-calendar (to year 2099) Hand home position correction feature The auto hand home position correction 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 signal calibration) Other features Regular timekeeping: Analog: 3 hands (hour, minute (hand moves every 5 seconds), second), 3 dials (dual time hour and minute, dual time 24 hour, day) Time adjustme