The very first Royal Oak models have been equipped with the calibre 2121 movement, which was based on the calibre 2120 created by Audemars Piguet in 1967, the planet’s thinnest self-winding motion of your era with date indicator, and an overall height of 3.05mm. The calibre 2121 was also Geared https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/