7mm. Royal Oak Offshore Chronograph Ceramic Royal Oak Offshore Chronograph Ceramic In blue Audemars Piguet This calendar year marks the 30th anniversary with the Royal Oak Offshore, which at first debuted in AP’s catalog again in 1993. In celebration, we get two much more additions on the Offshore lineup following https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/