Audemars Piguet Royal Oak 26331BA.OO.1220BA.02 Chronograph 41mm

The Audemars Piguet Royal Oak 26331BA.OO.1220BA.02 is a luxurious and sporty chronograph housed in a full 18K yellow gold case and bracelet.¹ This model retains the iconic Royal Oak design while offering the functionality of a chronograph.
The watch features the signature octagonal bezel crafted from 18K yellow gold, secured by eight hexagonal screws, a hallmark of the Royal Oak collection.² The 41mm case is also made entirely of 18K yellow gold, with alternating brushed and polished finishes that highlight the warm tone of the precious metal and the distinct lines of the case.³
The „Grande Tapisserie” patterned dial is typically a contrasting color, often blue or black, providing a textured backdrop for the chronograph subdials and other indications.⁴ It features three subdials: a small seconds counter at 6 o’clock, a 30-minute counter at 3 o’clock, and a 12-hour counter at 9 o’clock. The applied yellow gold hour markers and Royal Oak hands with luminescent coating ensure excellent legibility.⁵ A date window is usually positioned between 4 and 5 o’clock.
Powering this chronograph is the in-house Calibre 2385, a self-winding mechanical movement with an integrated chronograph function.⁶ This reliable and precise movement has a power reserve of approximately 40 hours.⁷
The integrated 18K yellow gold bracelet follows the iconic Royal Oak design with its tapering links and alternating brushed and polished finishes, creating a seamless and luxurious feel on the wrist.⁸ It is secured by an AP folding clasp.
Key features of the Audemars Piguet Royal Oak 26331BA.OO.1220BA.02 Chronograph 41mm:
Case Material: 41mm 18K Yellow Gold with brushed and polished finishes.⁹
Bezel: Octagonal 18K Yellow Gold bezel with 8 hexagonal screws.¹⁰
Dial: „Grande Tapisserie” patterned dial (typically blue or black) with three chronograph subdials, applied yellow gold hour markers, and Royal Oak hands with luminescent coating. Date window.
Movement: In-house Calibre 2385 Self-winding Chronograph movement.¹¹
Power Reserve: Approximately 40 hours.¹²
Bracelet: Integrated 18K Yellow Gold bracelet with brushed and polished links and an AP folding clasp.¹³
Crystal: Sapphire crystal with anti-reflective coating.¹⁴
Case Back: Solid 18K Yellow Gold case back (typically).
Water Resistance: 50 meters (165 feet).¹⁵
This Audemars Piguet Royal Oak Chronograph in full 18K yellow gold is a statement of luxury and sporty elegance. The iconic design, combined with the rich warmth of yellow gold and the functionality of a chronograph, makes it a highly desirable timepiece for discerning collectors.