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