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