The first Royal Oak types were being equipped Along with the calibre 2121 movement, which was depending on the calibre 2120 formulated by Audemars Piguet in 1967, the world’s thinnest self-winding movement from the era with date indicator, and an overall height of 3.05mm. The calibre 2121 was also equipped https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/