Multi-band atomic timekeeping (US, UK, Germany, Japan, China), Receives time calibration radio signals which keep the displayed time accurate, Auto receive function (up to 6 times per day)
Manual receive function, Signal: US WWVB, UK MSF, Germany DCF77, Japan JJY40/JJY60, China BPC, Frequency: US 60kHz, UK 60kHz, Germany 77.5kHz, Japan 40/60kHz, BPC 68.5kHz
Tough solar power, LED light with afterglow, neo-brite luminous hands & markers, world time, 29 times zones (29 cities + UTC), city code display, daylight saving on/off, 5 languages day of week display (Chinese, English, German, Japanese, Spanish)
5 daily alarms, hourly time signal, 1/100 second stopwatch, countdown timer, full auto calendar (pre-programmed until the year 2099), 12/24 hour formats
Storage battery: solar rechargeable battery, Approx. battery life: 4 months on full charge (without further exposure to light), 100M water resistant