The initial 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 earth’s thinnest self-winding motion with the period with date indication, and an Over-all peak of three.05mm. The calibre 2121 was also Geared up https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/