Insider: Audemars Piguet Royal Oak ref. 15400. The Largest Royal Oak Ever Made.

The Audemars Piguet Royal Oak ref. 15400 is the largest Royal Oak ever made with an over-sized case with a diameter of 41 mm. This fantastic reference —also available in rose gold— is a clear result of the continuous evolution of the Royal Oak and the manufacture’s constant forward thinking.  Since its launch in 1972,…