The Audemars Piguet OYAL OAK CONCEPT Flying Tourbillon watch combines the brilliance of blue sapphires and 18-carat white gold in unparalleled harmony. Its white gold hands are set on an 18-carat gold dial set with a blue sapphire, protected by an anti-reflective glass and a case back, and a crown set with a transparent sapphire. The case measures 38.5 mm in diameter and 11.4 mm thick, and is water-resistant to 20 metres. The OYAL OAK CONCEPT Flying Tourbillon watch is fitted with a hand-stitched alligator strap, complete with an 18-carat white gold buckle set with a blue sapphire.