CASIO OUTGEAR Thermometer 100 WR Alarm Watch AMW-707D-1 EL Backlight (with Auto Light) Neobrite: a luminous coating provides long-term illumination in the dark after only a short exposure to lightTemperature MeasurementStopwatch function (1/100 - 100HR) World Time:displays the current time in major cities and specific areas around the world Daily Alarm, Hourly Time SignalAuto Calendar (pre-programmed until the year 2099) Water resistance classification (10 bar / 100m)Perfect for swimming and snorkelling: the watch is water resistant to 10 bar / 100 metres. The metres value does not relate to a diving depth but to the air pressure used in the course of the water resistance test. (ISO 2281) 12/24-hour Timekeeping Scratch resistant mineral glassSizable stainless steel bandStainless steel case Accuracy:+/- 30 seconds per month3 Years - 1 Battery (SR927W x 2)