The main Royal Oak styles were equipped Together with the calibre 2121 motion, which was dependant on the calibre 2120 designed by Audemars Piguet in 1967, the whole world’s thinnest self-winding motion of your period with date sign, and an In general height of 3.05mm. The calibre 2121 was also https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/