The main Royal Oak types had been equipped With all the calibre 2121 motion, which was based on the calibre 2120 created by Audemars Piguet in 1967, the earth’s thinnest self-winding motion with the period with date sign, and an General height of 3.05mm. The calibre 2121 was also Outfitted https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/