The first Royal Oak designs ended up equipped Together with the calibre 2121 motion, which was depending on the calibre 2120 produced by Audemars Piguet in 1967, the whole world’s thinnest self-winding motion with the period with date indication, and an overall peak of 3.05mm. The calibre 2121 was also https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/