The very first Royal Oak versions were fitted Along with the calibre 2121 movement, which was dependant on the calibre 2120 created by Audemars Piguet in 1967, the globe’s thinnest self-winding movement of your period with date indicator, and an All round top of 3.05mm. The calibre 2121 was also https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/