The 1st Royal Oak products had been fitted Together with the calibre 2121 motion, which was determined by the calibre 2120 designed by Audemars Piguet in 1967, the whole world’s thinnest self-winding motion with the era with date indicator, and an overall height of 3.05mm. The calibre 2121 was also https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/