The very first Royal Oak models were fitted With all the calibre 2121 movement, which was determined by the calibre 2120 created by Audemars Piguet in 1967, the globe’s thinnest self-winding movement from the period with day indicator, and an General height of three.05mm. The calibre 2121 was also equipped https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/