Audemars Piguet was the first brand to feature Tantalum in a high luxury watch. Tantalum is a rare, hard and lustrous metal, which exhibits an alluring dark and modish luster. Tantalum is rarely used in watchmaking as it is extremely difficult to work with. Very high temperatures are needed for tantalum to be adapted, and once it has been formed it is highly corrosion-resistant and extremely durable. According to our research, Audemars Piguet pioneered their first tantalum watch at the behest of King Juan Carlos of Spain, who wanted a Royal Oak that has a stealthy tone.

Aesthetically speaking, the present watch has an alluring appeal which would not be an overstatement to be called one of the most stunning Royal Oak iterations. With a beautiful grey dial, 18K pink gold bezel and accents, the present timepiece impeccably epitomizes the union of unmissable good look and sublime technical expertise. The case back of the present watch is engraved No. 129, suggesting it was the 129th example made in this configuration.