The Audemars Piguet Concept Watch Replica Royal Oak Offshore Tourbillon Chronograph 25th Anniversary and Royal Oak Offshore Selfwinding Chronograph are three brand new, pre-SIHH 2018 references which we will see in shops next year, when AP is celebrating the 25th anniversary of its Royal Oak Offshore line.When Audemars Piguet unveiled the first Royal Oak Offshore