The BLS Audemars Piguet Royal Oak Offshore 26420 series combines iconic design language with high-precision watchmaking craftsmanship, presenting a modern interpretation of a classic sports chronograph.
Equipped with the Dandong 4401 column-wheel movement, approximately 6.8mm in thickness, maintaining structural consistency with the original design and featuring interchangeable key components.
Upgraded Dandong 4401 free-sprung balance system ensures improved stability and accuracy, with engraving details closely matching the original appearance.
The dial logo is finely engraved with strict adherence to original typography details, including extended “A” strokes and angled “E” structures.
The dial features a uniform and three-dimensional “waffle pattern” texture, delivering consistent visual depth and clarity.
The date window is crafted using four-axis laser engraving technology, resulting in a sharp and well-defined rectangular structure.
The octagonal bezel with hexagonal screws features precise positioning and polished screw detailing for a clean and refined appearance.
The case edges and finishing replicate the original sandblasted texture and geometry, with continuous octagonal lines and accurate proportions.
The bracelet is designed with a tapered structure from thick to thin links, ensuring smooth articulation and comfortable wearing experience with alternating brushed and polished finishes.
The bezel sandblasting is even and consistent without breaks, combined with high-polish surfaces for enhanced visual contrast. The structure is tightly assembled with high precision, allowing compatibility alignment with original specifications.
This timepiece integrates the signature design of the Royal Oak Offshore line with advanced chronograph architecture, delivering a balanced combination of sporty aesthetics and mechanical sophistication for both daily wear and professional timing use.




