<p class="font_8">**Audemars Piguet Royal Oak Selfwinding Chronograph RG Model 26239OR.OO.1220OR.02 Review by A.I. WatchMetrics**

### Watch Summary:
The Audemars Piguet Royal Oak Selfwinding Chronograph RG Model 26239OR.OO.1220OR.02 is a quintessential example of luxury sports watchmaking, blending elegance with robust functionality. This model is classified under the Sport/Active style category, characterized by its iconic octagonal bezel, integrated bracelet, and chronograph functionality. Crafted in 18k rose gold, it exudes a sense of opulence and sophistication, making it suitable for both formal and casual settings. The watch is powered by the automatic Caliber 4401, offering a power reserve of approximately 70 hours, ensuring reliable performance for extended wear. This timepiece is ideal for collectors and enthusiasts who appreciate high-end craftsmanship and the legacy of the Royal Oak design.

### Overall Watch Rating: 8.8/10.0

- **Material Metric (9.5/10.0)**
The use of 18k rose gold and the exceptional finishing of the case and bracelet highlight the luxurious materials and craftsmanship. The watch's construction ensures durability and a premium feel, contributing significantly to its high material score.

- **Dials &amp; Design Metric (9.3/10.0)**
The Royal Oak's iconic design, with its "Grande Tapisserie" patterned dial and applied hour markers, showcases exceptional craftsmanship and originality. The harmonious integration of the chronograph sub-dials further enhances its aesthetic appeal.

- **Movement Metric (9.0/10.0)**
Equipped with the in-house Caliber 4401, the movement features a column wheel chronograph mechanism, flyback function, and a 70-hour power reserve. The technical complexity and finishing quality of the movement are exemplary, reflecting Audemars Piguet's horological expertise.

- **Brand Metric (9.0/10.0)**
Audemars Piguet is renowned for its high-end luxury status and innovative contributions to watchmaking. The Royal Oak line, in particular, is iconic, cementing the brand's reputation in the industry.

- **Functions Metric (8.8/10.0)**
The watch offers practical features such as a chronograph, date display, and water resistance up to 50 meters, making it versatile for various activities. The combination of these functions enhances its usability without compromising elegance.

- **Complications Metric (8.5/10.0)**
The chronograph complication is well-executed, providing both functionality and aesthetic balance. While not overly complex, it adds significant value to the watch's overall appeal.

- **History &amp; Innovation Metric (8.5/10.0)**
The Royal Oak's introduction in 1972 revolutionized luxury sports watches, and this model continues that legacy with modern innovations. Its historical significance and design evolution are noteworthy.

- **Versatility Metric (8.3/10.0)**
The watch's design allows it to transition seamlessly between formal and casual settings, though its luxurious materials may limit its use in more rugged environments.

- **Rarity Metric (8.0/10.0)**
As a high-end luxury watch with limited production, it holds a degree of exclusivity. However, its availability within the Royal Oak line moderates its rarity score.

### Celebrity and Historical Figures:
The Audemars Piguet Royal Oak is favored by numerous celebrities and athletes, including LeBron James, who has been seen wearing various models from the Royal Oak collection. This association with high-profile individuals underscores the watch's status and appeal within luxury circles.</p>