The first Royal Oak types have been equipped Together with the calibre 2121 motion, which was according to the calibre 2120 designed by Audemars Piguet in 1967, the whole world’s thinnest self-winding motion on the period with date indication, and an Total top of three.05mm. The calibre 2121 was also https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/