The primary Royal Oak products were fitted Together with the calibre 2121 motion, which was according to the calibre 2120 produced by Audemars Piguet in 1967, the planet’s thinnest self-winding motion from the era with date sign, and an Over-all top of 3.05mm. The calibre 2121 was also equipped with https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/