Audemars Piguet Royal Oak Concept GMT Tourbillon
Audemars Piguet released the first Royal Oak Concept replica watch in 2002, the case is made of Alacrite 602. In 2008, another Concept model was equipped with a forged carbon fiber case. In 2011, the model combined a titanium metal case with a black ceramic bezel. Before the SIHH Watch …continue reading