The bright blue of this piece by Ulysse Nardin catches your eye whilst its mechanical heart draws you in. The watch expertly plays with transparency and depth with a 1 minute flying tourbillon spinning on the sapphire plate at the base of the dial. A blue mask features two metallic openwork hour and minute hands yet the dial has no time markers (indices, figures and/or minute track). At the peak of this distinctive dial lies a conical dual display with the date on a blue background at 12 o’ clock. Four notes automatically ring out on the hour and the chime can be set for hours, quarters and minutes using the bolt on the case at 9 o’ clock. The clock is brought to life by a manual wind movement inside the 46mm white gold case. Simply press a button at 11 o’ clock to silence the Imperial Bleu. Price: 750,000 CHF