This Royal Oak watch ref.15407ST.OO.1220ST.01 in steel has been custom diamond-set with G colour VVS/VS round brilliant-cut diamonds. We have used pavé diamond setting whereby the stones are positioned closer together in a honeycomb pattern (less gaps, more diamonds, minimal edges). On this watch, we have custom diamond-set the original bezel, case, bracelet and bracelet edges. This particular model is the double balance wheel movement and openworked (skeleton) dial, made in limited numbers and all hand-finished. This piece comes with original Audemars Piguet box and papers and 12-months Cagau warranty.