Technology:
The clock is a small marvel of technology. The adjustment to the correct time zone is simple and the radio signal is received automatically every day. A comparison with the reference of the TU Braunschweig gives absolute agreement. The exact time is on your wrist so always available. The Eco-Drive function promises a long life without the hassle of changing batteries. (This also five stars)
Processing:
The clock is very high quality. Due to the size and weight, of course, more for strong wrists. Of particular note is the highly scratch-resistant sapphire crystal, which is not self-evident in this price range. A star deduction there only for the quality of the bracelet. In the version ordered by steel tape I like the clock, better than the alternative silicone band, but the feel and quality of the band and in particular the buckle not quite correspond to my wishes. (This total a star deduction)