Time Factory Men's Quartz Titanium and Rubber Sport Watch, Color:Black (Model: T3C315) Proprietary six hand movement with four independent motors driving each function Linear chronograph measures up to 4 hours on the lower hand with a 30 minute linear indicator, with 2nd time zone Multi-functional retrograde and linear hands Super LumiNova dial indices, date window Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving