The first Royal Oak types had been fitted With all the calibre 2121 movement, which was based on the calibre 2120 developed by Audemars Piguet in 1967, the globe’s thinnest self-winding movement of the period with day indication, and an In general height of three.05mm. The calibre 2121 was also https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/