This compact, silver watch DCF-77-Radio-controlled radio signaling offers accurate time measurement while providing the opportunity for manual setting. The 46 × 36 mm display is easy to read large 16mm numbers, while smaller displays show the alarm and temperature data. The short-time blue backlight, 12/24 hour format, the repetitive function of the alarm clock every 5 minutes, the gradually strengthened beep and the ± 12-hour time zone setting are all comfortable. The clock also displays the date and the indoor temperature, and requires 2 1.5 V AAA elements (not included), while easy to place anywhere with a compact 66 × 66 × 21 mm.