The very first Royal Oak designs have been equipped Along with the calibre 2121 movement, which was dependant on the calibre 2120 made by Audemars Piguet in 1967, the whole world’s thinnest self-winding motion in the era with date indicator, and an overall top of 3.05mm. The calibre 2121 was https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/