The main Royal Oak styles were equipped Together with the calibre 2121 motion, which was depending on the calibre 2120 developed by Audemars Piguet in 1967, the planet’s thinnest self-winding motion of your era with date sign, and an General top of 3.05mm. The calibre 2121 was also equipped using https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/