Audemars Piguet Royal Oak Perpetual Calendar 25820SP.O.0944SP.01 Stainless Steel Platinum Black Dial

$134,900.00

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The Audemars Piguet Royal Oak Perpetual Calendar 25820SP marries sporty elegance with horological sophistication. Its 39 mm stainless steel case is elevated by a polished platinum bezel and platinum links, offering a striking two-metal contrast. The black “Grande Tapisserie” dial hosts a full perpetual calendar: day, date, month, moonphase, and leap year indicators—all arranged cleanly within four subdials for instantaneous legibility. AP’s classic white-gold hands and indices complete the refined aesthetic.

The 25820SP is a milestone in Royal Oak history—it was among the first to integrate a leap-year display, a rarity at the time. Produced over a limited period, its balanced size, precious-metal accents, and full calendar functionality make it highly sought after by connoisseurs. The reference upholds Royal Oak DNA while serving as a rare crossover between high complication and sport-luxury wrist presence.

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The Royal Oak Perpetual Calendar ref. 25820SP fuses timeless sport elegance with serious complication in a blend of stainless steel and platinum. Housed in a 39 mm steel case with an ultra-polished platinum bezel, its presence is bold but balanced. The integrated bracelet alternates brushed steel links with polished platinum center links, accentuating the dual-metal signature in a way that feels cohesive and luxurious.

Its dial is a deep, matte black “Grande Tapisserie,” framed by crisp applied white-gold hour markers and white-gold Royal Oak hands filled with luminescent material for legibility. Four subdials present day, date, month (with leap year indicator), and moon phase — arranged with symmetry and clarity to preserve aesthetic balance despite complexity. The platinum bezel acts as a luminous frame to the darker dial, elevating visual contrast and impact.

Powered by the automatic Caliber 2120/2802 with perpetual calendar module, this watch delivers full calendar functionality — perpetual date, day, month, leap year, and moon phase — without needing adjustment until the year 2100. The movement’s finishing and slim profile are visible beneath the exhibition caseback, demonstrating Audemars Piguet’s mastery of marrying ultra-thin mechanics with high functionality. With water resistance rated at 20 m, the 25820SP stands as a refined icon of luxury complication in a sport-luxury form.

Reference Number
25820SP.O.0944SP.01
Model Family
Royal Oak
Movement
Automatic
Case Material
Stainless Steel
Bracelet Material
Stainless Steel & Platinum
Dial
Black
Case Dimension
39mm
Year
Open Date
Condition
Pre-Owned (Very Good)
Box & Papers
Original Box, Original Papers

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Warranty

New and pre-owned watches purchased from Wrist Aficionado are covered by either our complimentary 1 year warranty or the remainder of the original manufacturer warranty on the watch. Our warranty covers manufacturing defects that impact the mechanical function of the watch. We do NOT cover cosmetic defects, normal wear and tear, loss, theft, or damage as a result of misuse, water damage, etc. Any third party service or modification completed after purchase will render this warranty null and void. Eligibility to process a warranty claim is determined at our sole discretion. Due to the nature of vintage watches and availability of parts, we cannot offer our warranty for vintage pieces.

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