The very first Royal Oak versions ended up equipped With all the calibre 2121 motion, which was depending on the calibre 2120 produced by Audemars Piguet in 1967, the globe’s thinnest self-winding movement of your period with date indication, and an In general peak of three.05mm. The calibre 2121 was https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/