The main Royal Oak models had been fitted Using the calibre 2121 motion, which was according to the calibre 2120 created by Audemars Piguet in 1967, the entire world’s thinnest self-winding movement on the period with date sign, and an General top of 3.05mm. The calibre 2121 was also Outfitted https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/