KUALA LUMPUR, April 16 -- American singer-guitarist John Mayer has partnered with Swiss Haute Horlogerie manufacturer Audemars Piguet to design a timepiece.

Audemars Piguet's collaboration with the seven-time Grammy winner continues its enriching dialogues with talented individuals, whose creative vision has led to the creation of micro-mechanical wonders.

An avid watch collector and long-time friend of the brand, Mayer lent his collector's eye and taste for precision and aesthetic beauty to the Royal Oak Perpetual Calendar.

"My favourite watches have dials that you can stare endlessly at. A great watch dial feels like a picture window - you look into it, not at it," said Mayer, 46.

For the occasion, Mayer applied his sensibilities to...