The first Royal Oak types ended up equipped Using the calibre 2121 movement, which was based on the calibre 2120 made by Audemars Piguet in 1967, the whole world’s thinnest self-winding motion on the period with date sign, and an Over-all height of 3.05mm. The calibre 2121 was also Outfitted https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/