I bought this clock by two and a half years: she was the first clock ever that met my requirements: a) Solar power (no battery replacement) b) radio Accurate control (which is always radio signal available) c) Easy change of time zone (often indispensable for upcoming air travel) d) Good design, and adequate compatibility with both light and dark shirts All previous watch models from the same manufacturer were not an option due to the non Meets one of criterion d). After two and a half years, I can only confirm my fullest satisfaction (only drawback is, as described in previous reviews the excessive and Non-screw crown with a result of allergic reaction initially on back of hand - but has given the passage of time). Design: by the different configuration of the three small hands and Ziffernblaetter and the well-designed display of date and time zone affects the clock interesting. The black dial combined in color well with dark shirts (white ring as a contrast) and the white Ring is also a good basis for good optics in conjunction with white shirts. I was repeatedly asked about it, what brand is this chic clock, which I wear on your wrist. I would buy this clock again at any time and the design I personally like better than the design of some> 20.000 EUR expensive clock. With a screw-down crown absolutely no more desire would remain open.