HBF Factory Audemars Piguet Royal Oak series.
V2 version upgrade: inner rehaut refined to match the original design, featuring a polished rehaut that enhances the three-dimensional visibility of the hour markers.
This is the highest-level version in the market, based on original mold development, designed to eliminate obvious flaws at first glance.
Model: Audemars Piguet Royal Oak Chronograph 26331ST.OO.1220ST.01.
Equipped with a 7750 chronograph movement consistent with the original configuration, featuring a small seconds at 6 o’clock.
Case made of 316L stainless steel, finished with a combination of brushing and partial polishing, delivering a refined yet robust aesthetic.
Upgraded polished inner rehaut matching the original design, offering improved depth and clarity compared to brushed market versions.
Classic 41mm case size with 13.8mm thickness, providing a strong and substantial wrist presence.
High-intensity luminous coating ensures clear readability in all lighting conditions.
A carefully crafted 1:1 replica-style chronograph designed to significantly improve finishing quality and visual accuracy compared to standard market versions, and positioned as a premium enthusiast-grade piece.




