Water resistant 50 metres dual signal receiver time calibration signal reception auto receive 000 am 100 am 200 am 300 am 400 am and 500 am manual receive last date received display time calibration signals other transmitter selection station name dcf77 mainflingen germany frequency 775 khz station name msf rugby england frequnecy 600 khz station name jjy fukushima fukuokasaga japan station name wwvb fort coll