The main Royal Oak models ended up equipped Using the calibre 2121 motion, which was depending on the calibre 2120 created by Audemars Piguet in 1967, the earth’s thinnest self-winding movement from the period with day indicator, and an Total top of 3.05mm. The calibre 2121 was also Geared up https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/