Synonymous with toughness, the G-SHOCK just added the first-ever bluetooth connected MT-G timepiece to their collection. The watch uses an Engine module that connects to a time server via a paired smartphone or using radio wave time-calibration signals for the most accurate timekeeping anywhere in the world. The MT-G also features a slimmer case with premium metal finishing along with a re-designed Core Guard Structure that links the bezel, back cover, and band connection pieces for upgraded strength.