The very first Royal Oak types had been fitted Using the calibre 2121 movement, which was depending on the calibre 2120 designed by Audemars Piguet in 1967, the world’s thinnest self-winding motion on the era with date indicator, and an Total height of three.05mm. The calibre 2121 was also Geared https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/