The very first Royal Oak versions had been fitted While using the calibre 2121 movement, which was dependant on the calibre 2120 formulated by Audemars Piguet in 1967, the entire world’s thinnest self-winding motion of your period with date indication, and an overall peak of three.05mm. The calibre 2121 was https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/