The brand from Le Brassus that delights in breaking rules presents a masterful new perpetual calendar in its Royal Oak, featuring a slightly larger case since 2012 and available here in pink gold or steel, framing a night blue or snow white dial. It thus becomes much easier to read off the multiple indications provided by a perpetual calendar (day, date, month and leap years) as well as an astronomical moon-phase display. This user friendliness is all the more appreciable in that this new 2015 model welcomes an additional time measurement on the outer bezel ring, swept over by a central hand pointing to the 52 weeks of the year. The Haute Horlogerie finishes on the new self-winding caliber powering the Royal Oak Perpetual Calendar is revealed through the back of this concentrated blend of mechanical and aesthetic expertise, interpreted in a blue and gold version that entirely absorbs attention and dissolves any notion of time.