Grammy-winner John Mayer designs limited-edition Perpetual Calendar Royal Oak watch for Audemars Piguet.

Grammy-award winning musician John Mayer has been appointed as the "creative conduit" for luxury watch brand Audemars Piguet. As part of this role, Mayer has designed a limited-edition Perpetual Calendar Royal Oak watch with a dial that resembles the night sky, and other intricate details. This exclusive timepiece is limited to 200 pieces and features the iconic automatic Calibre 5134 movement.