Audemars Piguet Royal Oak 15400ST Case - 41mm Stainless Steel Fullset - Box , Card , Cert.2016 Condition - Used Good Condition จุดเด่น / Highlights • AP Royal Oak blue dial • 41mm stainless steel case • Full set 2016 • Good condition • Classic Royal Oak integrated bracelet design • Strong demand for blue dial Royal Oak models • Discontinued reference with collector appeal