This legendary luxury timepiece reaches heavenly heights with an all-blue treatment and gleaming white gold hands. Any Audemars Piguet Royal Oak is prone to attracting some coveted glances, but few do as well as the newly launched blue-on-blue perpetual calendar. The almost 150-year-old legendary Swiss watchmaker sought to “give a timepiece a starry vibe” by creating a 41mm-thick case and bracelet entirely in blue ceramic. This celestial theme continues with the application of shiny 18K white gold on the hour markers and hands. According to Robb Report, the vibrant hue is created by mixing zirconia powder with a binder content that turns blue when baked above 2,550 degrees Fahrenheit. The…