Practically, the world time display of 43 cities on the digital display, which easily can be replaced with the time on the dial. Optionally, the date can be displayed. Stopwatch to 1/100 exactly it has also, a timer can count down the exact second of 1-99 minutes, 2 alarms for each time zone are also possible. The pointers are precise, the second hand and shows you exactly to the respective second. That's not a foregone conclusion even expensive quartz watches!
The dial is quite overweight: at 12h is a fixed display of UTC. Stupidly, in the form of a 24 display, so you have to convert when reading every time. Right next to it is a in my opinion unnecessary 24h. With respect to the UTC display which is twice gemoppelt. At 6h is the mode setting: the crown at level 1 Pull out, then left and right to rotate the desired mode (Time / Date / Timer / chronograph / 2 Alarms / world time and radio settings) to adjust. Given the numerous functions of the clock a simple and good solution.
With the operation already have to deal a little bit up. The Dremel manual is a bad joke, I recommend the interactive tutorial (found under citizen.de/service).
The clock has incidentally already installed the newer U680 caliber, comprising a number of improvements such as longer duration in the dark and radio reception in China compared to the present in the other, similar-looking older models Skyhawk U600 caliber. Whether old or new caliber is built it can be seen immediately on the dial: is in the combined state of charge / radio display region at 10 clock at the U680 also CHN for China.
So the perfect clock? No! Downsides are overloaded and very small printed, with the naked eye hardly readable dial and the titanium although existing, but rather rickety and not really high-quality looking band, which is also uncomfortable sharp at the transition to housing. The built-in slide rule on the bezel is nice, but for lack of small print without reading glasses for myself useful. I am also skeptical about how long the 20 ATM water resistance, as several times a day but pulled out the crown, rotated and pushed back. That can not be good for the shaft seal in the long run. Screw-has not the clock.
Conclusion: overall great clock well finished with an overabundance of features for the price and thus recommended.