Royal Oak

Audemars Piguet Royal Oak Perpetual Calendar (Ref. 25820.SP) - Steel & Platinum

The Audemars Piguet Royal Oak Perpetual Calendar (Ref. 25820.SP) represents the zenith of both high complication and material rarity. This highly exclusive timepiece fuses the industrial genius of Gérald Genta's design with the mechanical poetry of the Perpetual Calendar, presented in the rare and striking combination of Stainless Steel and Platinum.

A Connoisseur's Two-Tone

This model distinguishes itself through the combination of its strong, essential steel case with the subtle, cool lustre of the most noble metal, platinum.

• Platinum Accents: The robust 39mm stainless steel case is dramatically framed by an Octagonal Platinum Bezel, which features the distinctive screw-and-nut architecture. The Platinum is also incorporated into the intermediary links of the integrated bracelet, creating a sophisticated and understated two-tone effect.
• Perpetual Precision: The dial features the complex 5-function Perpetual Calendar display, which tracks the day, date, month, and moon phases, along with the crucial leap year indicator, requiring no adjustment until the year 2100.
• The Tapisserie Dial: The exquisite dialis decorated with the iconic "Grande Tapisserie" pattern, which provides a textured, three-dimensional backdrop for the numerous indicators.

Ultra-Thin Mechanical Mastery

Despite housing one of horology's most complex mechanisms, the watch maintains the elegant, ultra-thin profile that is characteristic of this classic Royal Oak case. The Royal Oak Perpetual Calendar 25820.SP is an extremely rare and valuable piece—a quiet statement of wealth and a celebration of high-end mechanical artistry that appeals deeply to the most discerning collector. Secure this extraordinary fusion of complexity, design, and noble metals.