The very first Royal Oak versions have been equipped 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 movement of the period with date sign, and an Total peak of 3.05mm. The calibre 2121 was also https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/