A new calendar mechanism for the Audemars Piguet Royal Oak Perpetual Calendar allowed an enhanced dial layout.

A new calendar mechanism for the Audemars Piguet Royal Oak Perpetual Calendar allowed an enhanced dial layout.
A new calendar mechanism for the Audemars Piguet Royal Oak Perpetual Calendar allowed an enhanced dial layout.
An enhanced dial layout from Audemars Piguet.
Audemars Piguet
A new calendar mechanism for the Audemars Piguet Royal Oak Perpetual Calendar.
A multitude of parts in the new traditional perpetual calendar require hand adjustment.