Check out this unbelievable watch -- The magnificent Complication Poétique Midnight Planétarium -- which displays a tiny model of the solar system on your wrist. The watch shows representations of Mercury, Venus, Earth, Mars, Jupiter and Saturn. The version without the diamonds will set you back $274,613 in U.S. dollars. The one with diamond is about $366,101!
An article on the watch may be viewed here: http://www.dailymail.co.uk/sciencetech/article-2548017/Forget-smartwatches-wear-150-000-PLANETARIUM-wrist.html#ixzz3VsKzrlM3
To learn more about this fascinating craft, I recommend Watchmaking by George Daniels. The book follows the making of the precision timekeeper, step by step, and is illustrated at each stage with line drawings and brief explanatory captions. The text is easy to follow and to not overly technical.