Casio Wave Ceptor Watch WV-59DU-1AVEF Wave Ceptor technology is the most powerful tool you will ever wear on your wrist. It ensures absolute accuracy to the second Water Resistant 50 Metres Time calibration signal reception Auto receive up to six times a day (Remaining auto receives canceled as soon as one is successful) Manual receive Last time received display. Other: Transmitter selection Time Calibration Signals Station name: DCF77 (Mainflingen, Germany) Frequency: 77.5 kHz Station name: MSF (Anthorn in Cumbria , England) Frequency: 60.0 kHz Station name: WWVB (fort Collins, United State). Frequency: 60.0 kHz Station name: JJY (Fukushima, Fukuoka/Saga, Japan). Frequency: 40.0 kHz (Fukushima) / 60.0 kHz (Fukuoka/Saga) World Time 29 time zones (48 cities), city code display, daylight saving on/off Dual time 1/100 Sec Stopwatch Auto-calendar Day of the week display in 9 languages: English, Spanish, French, Portuguese, German, Italian, Chinese, Russian, Japanese Daily alarm 12/24 hour format Button operation tone on/off Electro-luminescent backlight afterglow