This clock I have now since 4.5 years and am still excited every day of her: - No battery change, Eco-Drive works even if the clock (eg covered by the sleeve) a long time in the dark runs without complaint and without the need to pay attention to anything - Accurate to the second passage through the wireless technology, I have never noticed a failure or inaccuracy (in comparison with other radio controlled clock) - Titanium bracelet with high wearing comfort, here have crept over the course of years only a few minor scratches - Absolutely scratch-resistant sapphire crystal, despite already some harder stresses the glass has not the slightest scratch - Pleasing dial that also lights up in the morning when you get up - Who wants and who needs it also has alarm, stopwatch etc. In summary, I can say that I have found the perfect clock and hope that I still have a long pleasure. I can highly recommend!