The radio wristwatch is used to receive the radio signals dcf msf wwvb and jjy 60khz the time is displayed in analogue format in addition the integrated lc display shows the weekday in german or english date seconds and charge state of the rechargeable battery a solar cell is invisibly integrated in the clock face and used to recharge the battery type ml 2016 if there is no radio signal the watch can be set manually for this purpose 31 cities from different time zones are avai