Audemars Piguet Royal Oak 26240ST.OO.1320ST.01 Chronograph 41mm

Description of the Watch

The Audemars Piguet Royal Oak 26240ST Selfwinding Chronograph is the ultimate expression of luxury watchmaking. Celebrating the 50th anniversary of the iconic Royal Oak collection, this exquisite timepiece fuses heritage and innovation. Crafted for modern men and women, it epitomizes the essence of luxury watches for men and women, enhances any wrist, and commands attention on your website.

Overview

This 41 mm Royal Oak Chronograph blends iconic design cues octagonal bezel, integrated bracelet with the bold new “Grande Tapisserie” dials. Available in elegant shades such as Bleu Nuit, Nuage 50 or silver, green, and khaki, it appeals to collectors and first-time aficionados alike . Powered by the in‑house Calibre 4401 automatic movement, it satisfies criteria for the best Swiss chronograph and Swiss automatic timepiece.

Design and Craftsmanship

The laser‑engraved octagonal bezel, polished bevels, and alternating satin‑brushed surfaces reflect Audemars Piguet’s workmanship. The steel 41 mm case (12.4 mm thick) strikes the perfect balance of athletic and refined aesthetics . The Grande Tapisserie dial whether midnight blue or silver features applied white-gold indices and luminescent Royal Oak hands. The integrated steel bracelet folds seamlessly into the case, providing both visual harmony and ergonomic comfort.

Movement and Performance

Under the hood is the Calibre 4401, a state‑of‑the‑art automatic chronograph movement featuring a column‑wheel and vertical clutch, visible through a sapphire caseback. It boasts a 70‑hour power reserve and flyback chronograph capability . The movement ensures precision and reliability, placing it among top-tier Swiss watch brands.

Features and Complications

This Royal Oak Chronograph includes a date display at 4:30, three subdials for chronograph functionality, and a small seconds indicator. With water resistance up to 50 m, it supports everyday elegance and light aquatic activities. These features make it a standout luxury watch with complications .

Specifications

Case

• Material: Stainless steel

• Diameter: 41 mm

• Thickness: 12.4 mm

• Finish: Polished bezel, brushed case flanks

Dial

• Color: Choices include Bleu Nuit, Nuage 50; silver-toned Grande Tapisserie

• Markers: Applied white‑gold indices

• Hands: Luminous Royal Oak hands

• Distinctive Elements: Anniversary rotor visible through sapphire caseback, date at 4:30 

Bracelet/Strap

• Material: Integrated stainless steel bracelet

• Width: Tapers proportionally from case

• Clasp Type: Folding AP clasp

• Adjustability: Micro-adjustments for a tailored fit

Movement

• Caliber: AP 4401

• Certification: In‑house automatic chronograph, column‑wheel

• Power Reserve: 70 hours 

• Frequency: 28,800 vph

• Mechanism and Jewels: Self‑winding chronograph, 40–50 jewels