Audemars Piguet 26240ST.OO.1320ST.06 Royal Oak Selfwinding Chronograph Stainless Steel Black Dial Watch

Audemars Piguet Royal Oak Selfwinding Chronograph – Ref. 26240ST.OO.1320ST.06

Introducing the Audemars Piguet Royal Oak Selfwinding Chronograph (Ref. 26240ST.OO.1320ST.06), released in 2023 as the flagship stainless-steel chronograph under the updated Royal Oak design. Case Shape: Octagonal. Presented in a 41 mm stainless-steel case, this timepiece features a dramatic black “Grande Tapisserie” dial—paired with matching subdials—for a sleek and contemporary look. The latest-generation design enhancements combined with the in-house Calibre 4401 make this reference a definitive expression of modern horological craftsmanship.

Case & Bracelet

• Material: Stainless-steel case, octagonal bezel, and integrated bracelet with brushed and polished finishing; secured by an AP folding clasp.
• Dimensions: 41 mm diameter × 12.4 mm thickness; proportioned for presence and ease of wear.
• Crystal & Water Resistance: Anti-glare sapphire crystals front and back; water-resistant to 50 m.

Dial & Hands

The matte-black dial features a textured “Grande Tapisserie” motif, complemented by tone-matched chronograph counters. White-gold applied hour markers and Royal Oak hands are filled with luminescent coating for optimal low-light legibility. The discreet date aperture between 4 and 5 o’clock maintains the dial’s symmetry.

Movement & Functionality

• Calibre 4401: An integrated automatic chronograph with vertical-clutch and column-wheel architecture. Beats at 4 Hz (28,800 vph), with an impressive 70-hour power reserve.
• Complications: Features central chronograph seconds, 30-minute and 12-hour counters, small seconds, fly-back function, and date.

Unique Characteristics

Ref. 26240ST is distinguished by its full-steel execution paired with a bold black dial—a modern take within the Royal Oak chronograph lineage. It incorporates subtle yet meaningful enhancements: refined bezel bevels, broader bracelet links, and ergonomic design revisions introduced across the 2022–2023 Royal Oak line. The 4401 calibre numbered among the top-tier chronograph movements thanks to its fly-back and vertical-clutch features.

Technical Specifications

• Reference: 26240ST.OO.1320ST.06
• Case & Bracelet: Stainless steel, 41 mm × 12.4 mm, 50 m WR
• Dial: Black “Grande Tapisserie” with tonal chronograph subdials
• Hands & Markers: White-gold with luminescent coating
• Movement: Calibre 4401 automatic, 4 Hz, ~70‑hour power reserve
• Complications: Fly-back chronograph, date, small seconds
• Crystal: Sapphire front and exhibition back, anti-glare

Conclusion

The Audemars Piguet Royal Oak Selfwinding Chronograph Ref. 26240ST.OO.1320ST.06 fuses iconic design with contemporary innovation, offering a powerful blend of style, engineering, and investment-grade appeal. With its new-generation ergonomics, prestigious movement, and strong secondary market performance, it is an exceptional choice for collectors seeking a versatile and standout piece within the Royal Oak chronograph family.