G-Shock MTGB3000BDE-1A MTG with Extra Band \- Triple G Resist (Shock resistant, Centrifugal force resistant, Vibration resistant) \- Tough Solar (Solar powered) \- LED light (Super Illuminator) \- Mobile link (Wireless linking using Bluetooth®) \- Dual time - 27 time zones, Home time swapping, auto summer time (DST) switching \- 1-second stopwatch \- Countdown timer \- Daily alarm \- Battery level indicator \- Power Saving (hands stop to save power when the watch is left in the dark) \- Full auto-calendar (to year 2099) \- Accuracy: ±15 seconds per month (with no signal calibration and mobile link function) \- Size of case 51.9x50.9x12.1mm