Oceanus Men's OCWM700TDA-1A Atomic Timekeeping Watch Mutli-band atomic 5 timekeeping (US, UK, Germany, Japan),Tough Solar Power, Tide Indicator 100m Water resistant, 1/20 Sec Chronograph, World Time (27 Cities) Daily alarm, Day and date display, Sapphire crystal, Power Saving Function, 5 Motors, Auto Calendar, Rechargeable Battery Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving